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#1
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how to route a thin deep slot in end grain of 18mm wood
Hello all
This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. I am expecting to have it pointed out that the 3mm strip of wood left on the LH side of the slot will be very weak. I do realise this... a last resort is to make a rebate rather than a slot, but this leaves me with a different finishing problem. Thanks for any pointers and suggestions jon N |
#2
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how to route a thin deep slot in end grain of 18mm wood
perfect job for a groover cutter!
Try here https://www.wealdentool.com/acatalog...oover_134.html Bob jkn wrote: Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. I am expecting to have it pointed out that the 3mm strip of wood left on the LH side of the slot will be very weak. I do realise this... a last resort is to make a rebate rather than a slot, but this leaves me with a different finishing problem. Thanks for any pointers and suggestions jon N |
#3
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how to route a thin deep slot in end grain of 18mm wood
On 23/07/17 20:53, jkn wrote:
Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. I am expecting to have it pointed out that the 3mm strip of wood left on the LH side of the slot will be very weak. I do realise this... a last resort is to make a rebate rather than a slot, but this leaves me with a different finishing problem. Thanks for any pointers and suggestions jon N I think a 3mm bit is going to be a problem at 15mm deep. What I think you actually want is a 3mm wide slotter fitted to an arbor https://www.angliatoolcentre.co.uk/s...-pid41493.html https://www.angliatoolcentre.co.uk/t...-pid41229.html Or if you have a table saw try using that. -- Any fool can believe in principles - and most of them do! |
#4
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how to route a thin deep slot in end grain of 18mm wood
Bob Minchin wrote:
perfect job for a groover cutter! Try here https://www.wealdentool.com/acatalog...oover_134.html Bob jkn wrote: Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. I am expecting to have it pointed out that the 3mm strip of wood left on the LH side of the slot will be very weak. I do realise this... a last resort is to make a rebate rather than a slot, but this leaves me with a different finishing problem. Thanks for any pointers and suggestions jon N These are deeper cutting https://www.wealdentool.com/acatalog...er_60_130.html |
#5
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how to route a thin deep slot in end grain of 18mm wood
jkn wrote:
how to use a router to cut a slot in the end of a sheet of wood. Solid wood, or ply-wood? |
#6
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how to route a thin deep slot in end grain of 18mm wood
On 23/07/2017 21:07, The Natural Philosopher wrote:
On 23/07/17 20:53, jkn wrote: Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. I am expecting to have it pointed out that the 3mm strip of wood left on the LH side of the slot will be very weak. I do realise this... a last resort is to make a rebate rather than a slot, but this leaves me with a different finishing problem. Thanks for any pointers and suggestions jon N I think a 3mm bit is going to be a problem at 15mm deep. What I think you actually want is a 3mm wide slotter fitted to an arbor https://www.angliatoolcentre.co.uk/s...-pid41493.html https://www.angliatoolcentre.co.uk/t...-pid41229.html Or if you have a table saw try using that. Table saw would be my choice. SteveW |
#7
Posted to uk.d-i-y
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how to route a thin deep slot in end grain of 18mm wood
On 23/07/2017 20:53, jkn wrote:
Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. I am expecting to have it pointed out that the 3mm strip of wood left on the LH side of the slot will be very weak. I do realise this... a last resort is to make a rebate rather than a slot, but this leaves me with a different finishing problem. Thanks for any pointers and suggestions jon N Forget the router. This is a job for a table saw or - at a push - a biscuit jointer. -- Cheers, Roger ____________ Please reply to Newsgroup. Whilst email address is valid, it is seldom checked. |
#8
Posted to uk.d-i-y
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how to route a thin deep slot in end grain of 18mm wood
On Sunday, 23 July 2017 21:43:42 UTC+1, Roger Mills wrote:
On 23/07/2017 20:53, jkn wrote: Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. I am expecting to have it pointed out that the 3mm strip of wood left on the LH side of the slot will be very weak. I do realise this... a last resort is to make a rebate rather than a slot, but this leaves me with a different finishing problem. Thanks for any pointers and suggestions jon N Forget the router. This is a job for a table saw or - at a push - a biscuit jointer. +1, a 3mm wide bit has too little strength or rigidity. FWIW you can get 3.2mm spiral saw bits, but you won't succeed with one. NT |
#9
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how to route a thin deep slot in end grain of 18mm wood
On Sunday, July 23, 2017 at 10:15:28 PM UTC+1, wrote:
On Sunday, 23 July 2017 21:43:42 UTC+1, Roger Mills wrote: On 23/07/2017 20:53, jkn wrote: Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. I am expecting to have it pointed out that the 3mm strip of wood left on the LH side of the slot will be very weak. I do realise this... a last resort is to make a rebate rather than a slot, but this leaves me with a different finishing problem. Thanks for any pointers and suggestions jon N Forget the router. This is a job for a table saw or - at a push - a biscuit jointer. +1, a 3mm wide bit has too little strength or rigidity. FWIW you can get 3.2mm spiral saw bits, but you won't succeed with one. NT Hi All Thanks for the quick replies! At first blush the Groover Cutter looks like the thing - me not thinking of this just shows my inexperience in what's available for Routers. +1, a 3mm wide bit has too little strength or rigidity Too little strength or rigidity for what, please? FWIW (a) It is in solid wood, not ply, and (b) I don't have a table saw (or Biscuit Cutter) Cheers Jon N |
#10
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how to route a thin deep slot in end grain of 18mm wood
"jkn" wrote in message ... Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. You need to fit an arbor and a slotting cutter which is like a miniature saw blade. You'll need to check sizes although you can alter the diameter of the bearings on the arbore to determine the depth of the slot. You lay the work flat , run the router along the top and the bearings in the arbor either side of the blade run against the side of the wood. michael adams .... |
#11
Posted to uk.d-i-y
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how to route a thin deep slot in end grain of 18mm wood
On Sunday, 23 July 2017 22:19:31 UTC+1, jkn wrote:
On Sunday, July 23, 2017 at 10:15:28 PM UTC+1, tabby wrote: On Sunday, 23 July 2017 21:43:42 UTC+1, Roger Mills wrote: On 23/07/2017 20:53, jkn wrote: Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. I am expecting to have it pointed out that the 3mm strip of wood left on the LH side of the slot will be very weak. I do realise this... a last resort is to make a rebate rather than a slot, but this leaves me with a different finishing problem. Thanks for any pointers and suggestions jon N Forget the router. This is a job for a table saw or - at a push - a biscuit jointer. +1, a 3mm wide bit has too little strength or rigidity. FWIW you can get 3.2mm spiral saw bits, but you won't succeed with one. NT Hi All Thanks for the quick replies! At first blush the Groover Cutter looks like the thing - me not thinking of this just shows my inexperience in what's available for Routers. +1, a 3mm wide bit has too little strength or rigidity Too little strength or rigidity for what, please? for what you're doing of course FWIW (a) It is in solid wood, not ply, and (b) I don't have a table saw (or Biscuit Cutter) Cheers Jon N So what saws do you have? NT |
#12
Posted to uk.d-i-y
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how to route a thin deep slot in end grain of 18mm wood
On 23/07/2017 20:53, jkn wrote:
Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. You will have difficulty finding a 3mm straight fluted bit - and if you do, it will be very weak so you would need many light passes to get to depth. You can get some slotting bits - the type designed for biscuit jointing in a normal router may do what you want. I think if I were doing this, I would actually use a small circular saw with a guide fence fitted (or better still do it on a table saw if you have access to one). You may need a narrow kerf blade to get 3mm though (use multiple passes if you need to go wider than a single blade kerf. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#13
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how to route a thin deep slot in end grain of 18mm wood
On 23/07/2017 23:27, michael adams wrote:
"jkn" wrote in message ... Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. You need to fit an arbor and a slotting cutter which is like a miniature saw blade. You'll need to check sizes although you can alter the diameter of the bearings on the arbore to determine the depth of the slot. You lay the work flat , run the router along the top and the bearings in the arbor either side of the blade run against the side of the wood. And be very careful planning your movements - its wickedly easy to forget you can't lift or plunge, and end up taking a lump out of the face of your wood. DAMHIK! Use an extra bit of wood on the other side of the router base to add stability when doing this type of cut - otherwise its difficult to balance it on edge and then slide it into the cut. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#14
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how to route a thin deep slot in end grain of 18mm wood
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#15
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how to route a thin deep slot in end grain of 18mm wood
Hi John
On Monday, July 24, 2017 at 2:08:02 AM UTC+1, John Rumm wrote: On 23/07/2017 23:27, michael adams wrote: "jkn" wrote in message ... Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. You need to fit an arbor and a slotting cutter which is like a miniature saw blade. You'll need to check sizes although you can alter the diameter of the bearings on the arbore to determine the depth of the slot. You lay the work flat , run the router along the top and the bearings in the arbor either side of the blade run against the side of the wood. And be very careful planning your movements - its wickedly easy to forget you can't lift or plunge, and end up taking a lump out of the face of your wood. DAMHIK! Yes, I get that, thanks! Use an extra bit of wood on the other side of the router base to add stability when doing this type of cut - otherwise its difficult to balance it on edge and then slide it into the cut. I worked that out for myself last night after visualising things in a bit more detail - thanks! ;-) As it happens there will be a 'scrap' area (to be cut away subsequently) of a few cm at the start end end of the slot, so the cleanness of the entry and exit points are not over-critical. This has all been very helpful, thanks a lot. Jon N |
#16
Posted to uk.d-i-y
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how to route a thin deep slot in end grain of 18mm wood
On 23/07/2017 20:53, jkn wrote:
Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. I am expecting to have it pointed out that the 3mm strip of wood left on the LH side of the slot will be very weak. I do realise this... a last resort is to make a rebate rather than a slot, but this leaves me with a different finishing problem. Thanks for any pointers and suggestions jon N IIUC, clamp the wood in a workmate and run a circular saw set to 15mm. I did this to build a frame to hold the tongue of T&G cladding. -- Cheers, Rob |
#17
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how to route a thin deep slot in end grain of 18mm wood
On 24/07/17 08:01, jkn wrote:
Hi John On Monday, July 24, 2017 at 2:08:02 AM UTC+1, John Rumm wrote: On 23/07/2017 23:27, michael adams wrote: "jkn" wrote in message ... Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. You need to fit an arbor and a slotting cutter which is like a miniature saw blade. You'll need to check sizes although you can alter the diameter of the bearings on the arbore to determine the depth of the slot. You lay the work flat , run the router along the top and the bearings in the arbor either side of the blade run against the side of the wood. And be very careful planning your movements - its wickedly easy to forget you can't lift or plunge, and end up taking a lump out of the face of your wood. DAMHIK! Yes, I get that, thanks! Use an extra bit of wood on the other side of the router base to add stability when doing this type of cut - otherwise its difficult to balance it on edge and then slide it into the cut. I worked that out for myself last night after visualising things in a bit more detail - thanks! ;-) As it happens there will be a 'scrap' area (to be cut away subsequently) of a few cm at the start end end of the slot, so the cleanness of the entry and exit points are not over-critical. This has all been very helpful, thanks a lot. The best way to do this is with as we have arrived at a groover tool/arbor and using a router table. as well which allows a fence to be used to control the depth, and the table to support the workpiece. Jon N -- "The great thing about Glasgow is that if there's a nuclear attack it'll look exactly the same afterwards." Billy Connolly |
#18
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how to route a thin deep slot in end grain of 18mm wood
On Monday, 24 July 2017 02:03:48 UTC+1, John Rumm wrote:
On 23/07/2017 20:53, jkn wrote: Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. You will have difficulty finding a 3mm straight fluted bit - and if you do, it will be very weak so you would need many light passes to get to depth. A 3mm diameter cutter can not do that, no matter how many shallow passes you make. I know because I have one. The only things it's able to manage are drilling downward and sideways cutting where the material being cut is at the surface & thus close to the chuck. Anything else is a nonstarter. NT |
#19
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how to route a thin deep slot in end grain of 18mm wood
On Monday, 24 July 2017 08:51:27 UTC+1, The Natural Philosopher wrote:
"jkn" wrote in message ... Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood The best way to do this is with as we have arrived at a groover tool/arbor and using a router table. as well which allows a fence to be used to control the depth, and the table to support the workpiece. .... if those are the tools the OP has. Otherwise it isn't. Random questioners are more likely to have a circular saw than a groover for a router. NT |
#20
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how to route a thin deep slot in end grain of 18mm wood
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#21
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how to route a thin deep slot in end grain of 18mm wood
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#23
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how to route a thin deep slot in end grain of 18mm wood
jkn wrote:
Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. I am expecting to have it pointed out that the 3mm strip of wood left on the LH side of the slot will be very weak. I do realise this... a last resort is to make a rebate rather than a slot, but this leaves me with a different finishing problem. Thanks for any pointers and suggestions jon N Use a table saw and a guide fence. |
#24
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how to route a thin deep slot in end grain of 18mm wood
On Monday, July 24, 2017 at 8:01:37 AM UTC+1, jkn wrote:
Hi John On Monday, July 24, 2017 at 2:08:02 AM UTC+1, John Rumm wrote: On 23/07/2017 23:27, michael adams wrote: "jkn" wrote in message ... Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. You need to fit an arbor and a slotting cutter which is like a miniature saw blade. You'll need to check sizes although you can alter the diameter of the bearings on the arbore to determine the depth of the slot. You lay the work flat , run the router along the top and the bearings in the arbor either side of the blade run against the side of the wood. And be very careful planning your movements - its wickedly easy to forget you can't lift or plunge, and end up taking a lump out of the face of your wood. DAMHIK! Yes, I get that, thanks! Use an extra bit of wood on the other side of the router base to add stability when doing this type of cut - otherwise its difficult to balance it on edge and then slide it into the cut. I worked that out for myself last night after visualising things in a bit more detail - thanks! ;-) As it happens there will be a 'scrap' area (to be cut away subsequently) of a few cm at the start end end of the slot, so the cleanness of the entry and exit points are not over-critical. This has all been very helpful, thanks a lot. Jon N oh, a supplementary... After the earlier discussions I was thinking of using the router 'bit down', with a side piece of the same thickness to ensure the router is stable. However I do have a router table and so could use the router 'upside down' in that. This would give the benefit of being able to use the fence; however the slots need to be quite long (the wood is ~600mm wide) and I guess I would need to extend the table so that the wood is stable at the extremities. (I s'pose I could do half the slot in each direction and turn the wood over - but since the slot is not symmetrical in the wood I would have to do some height adjusting which I am reluctanct to do.) Does the team think that this would still be preferable to clamping two bits of wood down and going in from the top? I guess with the table and fence I would not need to fit a 'depth bearing' on the arbour? Thanks, and sorry for all the beginner's questions... Oh, and and to answer some questions that have come up - I have no power saws at all. I did once do a thing similar to this with a tenon saw but it was a mighty faff and I have a lot more to do now... I would (marginally) prefer to buy a router bit/s than a saw, if only for the space taken up) Cheers Jon N |
#25
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how to route a thin deep slot in end grain of 18mm wood
On 24/07/17 12:30, jkn wrote:
On Monday, July 24, 2017 at 8:01:37 AM UTC+1, jkn wrote: Hi John On Monday, July 24, 2017 at 2:08:02 AM UTC+1, John Rumm wrote: On 23/07/2017 23:27, michael adams wrote: "jkn" wrote in message ... Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. You need to fit an arbor and a slotting cutter which is like a miniature saw blade. You'll need to check sizes although you can alter the diameter of the bearings on the arbore to determine the depth of the slot. You lay the work flat , run the router along the top and the bearings in the arbor either side of the blade run against the side of the wood. And be very careful planning your movements - its wickedly easy to forget you can't lift or plunge, and end up taking a lump out of the face of your wood. DAMHIK! Yes, I get that, thanks! Use an extra bit of wood on the other side of the router base to add stability when doing this type of cut - otherwise its difficult to balance it on edge and then slide it into the cut. I worked that out for myself last night after visualising things in a bit more detail - thanks! ;-) As it happens there will be a 'scrap' area (to be cut away subsequently) of a few cm at the start end end of the slot, so the cleanness of the entry and exit points are not over-critical. This has all been very helpful, thanks a lot. Jon N oh, a supplementary... After the earlier discussions I was thinking of using the router 'bit down', with a side piece of the same thickness to ensure the router is stable. However I do have a router table and so could use the router 'upside down' in that. This would give the benefit of being able to use the fence; however the slots need to be quite long (the wood is ~600mm wide) and I guess I would need to extend the table so that the wood is stable at the extremities. (I s'pose I could do half the slot in each direction and turn the wood over - but since the slot is not symmetrical in the wood I would have to do some height adjusting which I am reluctanct to do.) Does the team think that this would still be preferable to clamping two bits of wood down and going in from the top? I guess with the table and fence I would not need to fit a 'depth bearing' on the arbour? use the table and dont worry too much about extending it. Get a mate to support it and feed it in whilst you control the wood near the router bit. -- Theres a mighty big difference between good, sound reasons and reasons that sound good. Burton Hillis (William Vaughn, American columnist) |
#26
Posted to uk.d-i-y
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how to route a thin deep slot in end grain of 18mm wood
"John Rumm" wrote in message o.uk... On 23/07/2017 23:27, michael adams wrote: "jkn" wrote in message ... Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. You need to fit an arbor and a slotting cutter which is like a miniature saw blade. You'll need to check sizes although you can alter the diameter of the bearings on the arbore to determine the depth of the slot. You lay the work flat , run the router along the top and the bearings in the arbor either side of the blade run against the side of the wood. And be very careful planning your movements - its wickedly easy to forget you can't lift or plunge, and end up taking a lump out of the face of your wood. DAMHIK! Good point. The router I used this on had a removeable threaded fine adjuster with a knob on the end originally designed for use under a table. As an added precaution I always used a locknut on the other side of the lug the fine adjuster screwed down onto. On smaller Elus and Dewalt copies you can subsitute threaded stud for one of the screws on the turret and then use locknuts on this. I wouldn't attempt to use this set-up otherwise. Possibly I should have mentioned this in my original post. michael adams .... |
#27
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how to route a thin deep slot in end grain of 18mm wood
On Monday, 24 July 2017 11:10:22 UTC+1, The Natural Philosopher wrote:
On 24/07/17 09:59, tabbypurr wrote: On Monday, 24 July 2017 02:03:48 UTC+1, John Rumm wrote: On 23/07/2017 20:53, jkn wrote: You will have difficulty finding a 3mm straight fluted bit - and if you do, it will be very weak so you would need many light passes to get to depth. A 3mm diameter cutter can not do that, no matter how many shallow passes you make. I know because I have one. The only things it's able to manage are drilling downward and sideways cutting where the material being cut is at the surface & thus close to the chuck. Anything else is a nonstarter. NT Dear tabby. PLEASE read what has been read. We are not talking about a 3mm dia cutter, but a 40mm or gretaer diameter cutter used on edge like a precisioon saw with a 3mm kerf. did you really miss You will have difficulty finding a 3mm straight fluted bit that I was responding to? seriously? There, I've snipped the rest so even you can see it |
#28
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how to route a thin deep slot in end grain of 18mm wood
On Monday, 24 July 2017 11:11:43 UTC+1, The Natural Philosopher wrote:
On 24/07/17 10:02, tabbypurr wrote: On Monday, 24 July 2017 08:51:27 UTC+1, The Natural Philosopher wrote: "jkn" wrote in message ... Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood The best way to do this is with as we have arrived at a groover tool/arbor and using a router table. as well which allows a fence to be used to control the depth, and the table to support the workpiece. ... if those are the tools the OP has. Otherwise it isn't. Random questioners are more likely to have a circular saw than a groover for a router. No, it is clear he has a router. we know that retard-boy. What we don't know is whether he has a saw that will do the job or not. the rest he has to buy. The cost of an arbor and groover is less than a decent saw. |
#29
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how to route a thin deep slot in end grain of 18mm wood
On 24/07/2017 12:30, jkn wrote:
oh, a supplementary... After the earlier discussions I was thinking of using the router 'bit down', with a side piece of the same thickness to ensure the router is stable. However I do have a router table and so could use the router 'upside down' in that. Yup, slotting cutters are much easier and safer to use in a table. This would give the benefit of being able to use the fence; however the slots need to be quite long (the wood is ~600mm wide) and I guess I would need to extend the table so that the wood is stable at the extremities. Depends on how bit the table is - as long as you can hold it flat on the table with it tipping, then its fine if it overhangs either end at some point in the cut. You can also make yourself a feather board and clamp it to the fence of the table to help you "hold down" the work. (I s'pose I could do half the slot in each direction and turn the wood over - but since the slot is not symmetrical in the wood I would have to do some height adjusting which I am reluctanct to do.) No, try and work from one side only if you can. its easier generally to have a "reference face" that you work and measure from. Does the team think that this would still be preferable to clamping two bits of wood down and going in from the top? I guess with the table and fence I would not need to fit a 'depth bearing' on the arbour? If you have a table, then use that. As you say the fence will let you set the depth. If the cutter you get has a bearing on it, then you can just set the face inline with that by placing a ruler across the fence gap and against the bearing. Thanks, and sorry for all the beginner's questions... No problem - we were all beginners once, and at least this way you don't have to make all the mistakes we made. Oh, and and to answer some questions that have come up - I have no power saws at all. I did once do a thing similar to this with a tenon saw but it was a mighty faff and I have a lot more to do now... I would (marginally) prefer to buy a router bit/s than a saw, if only for the space taken up) Yup a router with the slotting cutter is perfectly good way to do it, especially as you have a table (you can do it freehand, but its easier to make mistakes with that type of setup). The only real downside of that type of cutter is they are more "one trick ponies" than straight fluted cutters which have a wider range of uses. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#30
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how to route a thin deep slot in end grain of 18mm wood
On Monday, 24 July 2017 11:34:54 UTC+1, John Rumm wrote:
On 24/07/2017 09:59, tabbypurr wrote: On Monday, 24 July 2017 02:03:48 UTC+1, John Rumm wrote: On 23/07/2017 20:53, jkn wrote: Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. You will have difficulty finding a 3mm straight fluted bit - and if you do, it will be very weak so you would need many light passes to get to depth. A 3mm diameter cutter can not do that, no matter how many shallow passes you make. I know because I have one. What you know is that your 3mm cutter can't do it... The limitation with any straight cutter with flutes narrower than the shank is that they will only have a limited depth of cut before you hit the tapered section. On many cutters of that type, the max depth is usually no more that 1/2", which given the OP suggested "15mm or so" may or may not be adequate. You can get 1/8" shank router cutters, which for 3mm fluted cutters will not have the same limitation on depth of cut. You would need either an adaptor collet for a larger machine, or a small detail router like the Dremel style add on: https://www.amazon.co.uk/Hakkin-Tita.../dp/B0187AYWE4 (However as I highlighted previously, there are other and better options in this particular case). Whoosh. The limitation with 1/8" sideways cutting bits is the lack of lateral strength. Try to cut the op's slot and they will just break. NT |
#31
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how to route a thin deep slot in end grain of 18mm wood
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#32
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how to route a thin deep slot in end grain of 18mm wood
On 24/07/2017 13:37, wrote:
On Monday, 24 July 2017 11:34:54 UTC+1, John Rumm wrote: On 24/07/2017 09:59, tabbypurr wrote: On Monday, 24 July 2017 02:03:48 UTC+1, John Rumm wrote: On 23/07/2017 20:53, jkn wrote: Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. You will have difficulty finding a 3mm straight fluted bit - and if you do, it will be very weak so you would need many light passes to get to depth. A 3mm diameter cutter can not do that, no matter how many shallow passes you make. I know because I have one. What you know is that your 3mm cutter can't do it... The limitation with any straight cutter with flutes narrower than the shank is that they will only have a limited depth of cut before you hit the tapered section. On many cutters of that type, the max depth is usually no more that 1/2", which given the OP suggested "15mm or so" may or may not be adequate. You can get 1/8" shank router cutters, which for 3mm fluted cutters will not have the same limitation on depth of cut. You would need either an adaptor collet for a larger machine, or a small detail router like the Dremel style add on: https://www.amazon.co.uk/Hakkin-Tita.../dp/B0187AYWE4 (However as I highlighted previously, there are other and better options in this particular case). Whoosh. The limitation with 1/8" sideways cutting bits is the lack of lateral strength. Try to cut the op's slot and they will just break. Are you just arguing for the sake of it again? No they won't break with a lateral pass - its a router cutter not a drill bit. Yes you will need to take light shallow passes - as I already said above. With each pass the load on the cutter is at the tip where its doing the cutting. If it survived the first pass, the following ones should be no harder. This is also a pointless discussion since the OP has already indicated they would rather go with the slotting cutter approach as has been recommended by several people. -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#33
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how to route a thin deep slot in end grain of 18mm wood
On 24/07/2017 13:34, wrote:
On Monday, 24 July 2017 11:11:43 UTC+1, The Natural Philosopher wrote: ... if those are the tools the OP has. Otherwise it isn't. Random questioners are more likely to have a circular saw than a groover for a router. No, it is clear he has a router. we know that retard-boy. What we don't know is whether he has a saw that will do the job or not. was the OP's comment "Oh, and and to answer some questions that have come up - I have no power saws at all." not enough of a clue for you? -- Cheers, John. /================================================== ===============\ | Internode Ltd - http://www.internode.co.uk | |-----------------------------------------------------------------| | John Rumm - john(at)internode(dot)co(dot)uk | \================================================= ================/ |
#34
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how to route a thin deep slot in end grain of 18mm wood
The Natural Philosopher wrote:
Dear tabby. PLEASE read what has been read. We are not talking about a 3mm dia cutter, but a 40mm or gretaer diameter cutter used on edge like a precisioon saw with a 3mm kerf. e.g. This axminster 47mm cutter, which with a 22mm bearing on the arbor will cut a 12.7mm groove, unfortunately they don't seem to sell e.g. an 19mm bearing arbour which would give the 15mm groove required. http://www.axminster.co.uk/axcaliber-2-wing-slotting-cutters-ax809783 Or they do a 4mm x 15mm intumescent slot cutter, if a 4mm groove would do instead of 3mm? http://www.axminster.co.uk/axcaliber-intumescent-strip-cutters-ax834745 |
#35
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how to route a thin deep slot in end grain of 18mm wood
On Monday, 24 July 2017 16:26:50 UTC+1, John Rumm wrote:
On 24/07/2017 13:37, tabbypurr wrote: On Monday, 24 July 2017 11:34:54 UTC+1, John Rumm wrote: On 24/07/2017 09:59, tabbypurr wrote: On Monday, 24 July 2017 02:03:48 UTC+1, John Rumm wrote: On 23/07/2017 20:53, jkn wrote: Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. You will have difficulty finding a 3mm straight fluted bit - and if you do, it will be very weak so you would need many light passes to get to depth. A 3mm diameter cutter can not do that, no matter how many shallow passes you make. I know because I have one. What you know is that your 3mm cutter can't do it... The limitation with any straight cutter with flutes narrower than the shank is that they will only have a limited depth of cut before you hit the tapered section. On many cutters of that type, the max depth is usually no more that 1/2", which given the OP suggested "15mm or so" may or may not be adequate. You can get 1/8" shank router cutters, which for 3mm fluted cutters will not have the same limitation on depth of cut. You would need either an adaptor collet for a larger machine, or a small detail router like the Dremel style add on: https://www.amazon.co.uk/Hakkin-Tita.../dp/B0187AYWE4 (However as I highlighted previously, there are other and better options in this particular case). Whoosh. The limitation with 1/8" sideways cutting bits is the lack of lateral strength. Try to cut the op's slot and they will just break. Are you just arguing for the sake of it again? No they won't break with a lateral pass - its a router cutter not a drill bit. Yes you will need to take light shallow passes - as I already said above. With each pass the load on the cutter is at the tip where its doing the cutting. If it survived the first pass, the following ones should be no harder. Having used such a thing I know what you discuss there is optimistic. NT |
#36
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how to route a thin deep slot in end grain of 18mm wood
On Monday, 24 July 2017 16:28:36 UTC+1, John Rumm wrote:
On 24/07/2017 13:34, tabbypurr wrote: On Monday, 24 July 2017 11:11:43 UTC+1, The Natural Philosopher wrote: ... if those are the tools the OP has. Otherwise it isn't. Random questioners are more likely to have a circular saw than a groover for a router. No, it is clear he has a router. we know that retard-boy. What we don't know is whether he has a saw that will do the job or not. was the OP's comment "Oh, and and to answer some questions that have come up - I have no power saws at all." not enough of a clue for you? That response came later. Pay attention. NT |
#37
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how to route a thin deep slot in end grain of 18mm wood
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#38
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how to route a thin deep slot in end grain of 18mm wood
On 24/07/17 16:28, John Rumm wrote:
On 24/07/2017 13:34, wrote: On Monday, 24 July 2017 11:11:43 UTC+1, The Natural Philosopher wrote: ... if those are the tools the OP has. Otherwise it isn't. Random questioners are more likely to have a circular saw than a groover for a router. No, it is clear he has a router. we know that retard-boy. What we don't know is whether he has a saw that will do the job or not. was the OP's comment "Oh, and and to answer some questions that have come up - I have no power saws at all." not enough of a clue for you? Apparently not... -- All political activity makes complete sense once the proposition that all government is basically a self-legalising protection racket, is fully understood. |
#39
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how to route a thin deep slot in end grain of 18mm wood
On 7/23/2017 9:21 PM, Steve Walker wrote:
On 23/07/2017 21:07, The Natural Philosopher wrote: On 23/07/17 20:53, jkn wrote: Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. I am expecting to have it pointed out that the 3mm strip of wood left on the LH side of the slot will be very weak. I do realise this... a last resort is to make a rebate rather than a slot, but this leaves me with a different finishing problem. Thanks for any pointers and suggestions jon N I think a 3mm bit is going to be a problem at 15mm deep. What I think you actually want is a 3mm wide slotter fitted to an arbor https://www.angliatoolcentre.co.uk/s...-pid41493.html https://www.angliatoolcentre.co.uk/t...-pid41229.html Or if you have a table saw try using that. Table saw would be my choice. SteveW Mine too. |
#40
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how to route a thin deep slot in end grain of 18mm wood
On 7/24/2017 8:22 AM, RJH wrote:
On 23/07/2017 20:53, jkn wrote: Hello all This is an enquiry about how to use a router to cut a slot in the end of a sheet of wood. Below is an ASCII-art side view of the sheet. The wood is around 18mm thick. The slot needs to be say 3mm across, and perhaps 15mm deep. | | slot approx 3mm from edge | | 3mm slot, 15mm or so deep / / / / / / / / / / / / / / / / |-| |------| | | | | | | | | | |_| | | | | | |SIDE VIEW | | ~18mm | thickness of wood I have a Router (1/2" chuck) available to me. I originally presumed that the approach would be to get a suitable 'deep pocket' router bit and cut the slot in several passes. However I cannot find such a router bit and am wondering if there are any other options. I am expecting to have it pointed out that the 3mm strip of wood left on the LH side of the slot will be very weak. I do realise this... a last resort is to make a rebate rather than a slot, but this leaves me with a different finishing problem. Thanks for any pointers and suggestions jon N IIUC, clamp the wood in a workmate and run a circular saw set to 15mm. I did this to build a frame to hold the tongue of T&G cladding. I think you might be lucky to have the thin strip survive. Given my poor woodworking skills I think I would look at capping a stepped rebate. |
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