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#1
Posted to rec.woodworking
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Cutting slot using router table
I know this is going to sound stupid, but my knowledge of a router is
mostly limited to putting a fancy edge on plaques. I want to take a 30" length of 4" wide board and put a slot all the way through the board about 4" long. the centerline of the slot will be 3/4 of and inch from the edge of the board. Where do I put the fence? Do I hold the board above the router and slowly lower it in position, or do I drill my 5/16 hole first into the board and fit the router bit into the hole, bringing my fence up to the board? Will I get a true straight clean slot this way, with no wobble? Thanks for any and all answers! Paul |
#2
Posted to rec.woodworking
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Cutting slot using router table
sam wrote:
I know this is going to sound stupid, but my knowledge of a router is mostly limited to putting a fancy edge on plaques. I want to take a 30" length of 4" wide board and put a slot all the way through the board about 4" long. the centerline of the slot will be 3/4 of and inch from the edge of the board. Where do I put the fence? Do I hold the board above the router and slowly lower it in position, or do I drill my 5/16 hole first into the board and fit the router bit into the hole, bringing my fence up to the board? Will I get a true straight clean slot this way, with no wobble? Thanks for any and all answers! Paul I have a pic of my set up at http://www.handleys.us/router.jpg Thanks, Paul |
#3
Posted to rec.woodworking
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Cutting slot using router table
sam wrote in :
I know this is going to sound stupid, but my knowledge of a router is mostly limited to putting a fancy edge on plaques. I want to take a 30" length of 4" wide board and put a slot all the way through the board about 4" long. the centerline of the slot will be 3/4 of and inch from the edge of the board. Where do I put the fence? Do I hold the board above the router and slowly lower it in position, or do I drill my 5/16 hole first into the board and fit the router bit into the hole, bringing my fence up to the board? Will I get a true straight clean slot this way, with no wobble? Thanks for any and all answers! Paul I'd probably use the second method, of making a hole then setting the fence. However, if you need the groove to be exactly the same size the entire width, you'll have to either make multiple passes with a smaller bit or perform a plunge cut. Be extremely careful with plunge cuts, as you cannot see the bit until it emerges from the board. (They're best done on a hand-held router, but you've gotta use the tools you've got.) Puckdropper -- On Usenet, no one can hear you laugh. That's a good thing, though, as some writers are incorrigible. To email me directly, send a message to puckdropper (at) fastmail.fm |
#4
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Cutting slot using router table
On Thu, 19 Mar 2009 00:29:15 -0400, sam wrote:
I know this is going to sound stupid, but my knowledge of a router is mostly limited to putting a fancy edge on plaques. I want to take a 30" length of 4" wide board and put a slot all the way through the board about 4" long. the centerline of the slot will be 3/4 of and inch from the edge of the board. Where do I put the fence? Do I hold the board above the router and slowly lower it in position, or do I drill my 5/16 hole first into the board and fit the router bit into the hole, bringing my fence up to the board? Will I get a true straight clean slot this way, with no wobble? Thanks for any and all answers! Paul I understand you said router table, but my first choice for routing this operation, work size permitting, would be an edge guided plunge router. But, going with the router table, I think either way would work, but unless you predrill, be sure the router bit is one suitable for plunging - has a cutting edge that extends completely across the end of the bit. If the size of the work permits, I'd recommend stop blocks positioned to limit the movement of the work so that the ends of the slot are determined by the stop blocks. If there is no router lift installed on your table, I think I'd go with the predrilled hole, position the work, then position the fence, the turn on the router. If you do have a router lift, position the fence 3/4" from the edge of the work, position the work against the fence, and raise the bit through the work. My last choice would be to lower the work onto a spinning bit and then only if stop blocks can be used to locate and restrain the work. I've done it, but have never been comfortable with that technique. Tom Veatch Wichita, KS USA |
#5
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Cutting slot using router table
If you use the correct bit you can plunge down to get started.
Set the fence with a pencil mark of where you wnat to start and a stop block for the finish if you need real precise. You will get a little bit of shake because the bit is cutting in two directions. It would be nice to have some hold downs but a little difficult when you are plunging, but make some sort of feather board, springs of even just a second fence to help keep it from jumping. a 5/16 slot should be able to cut in one pass in most woods pretty easy but play with feed speed. Also, clogging can be an issue where the chips don't evacuate but a full through slot should make this not to problematic and strong down suction dust removal will be a big help. Another option is to place the piece on top of a sacrificial piece of ply and construct a jig over the top with a few boards and do it free hand. In this case I would take multiple succesivly deeper passes and you can control super precise start and stop locations. Or even just use a base guide on the router and do it free hand. Lots o options You will get a little shake because the bit is cutting in two directions when it is in On Mar 18, 9:29*pm, sam wrote: I know this is going to sound stupid, but my knowledge of a router is mostly limited to putting a fancy edge on plaques. I want to take a 30" length of 4" wide board and put a slot all the way through the board about 4" long. the centerline of the slot will be *3/4 of and inch from the edge of the board. Where do I put the fence? Do I hold the board above the router and slowly lower it in position, or do I drill my 5/16 hole first into the board and fit the router bit into the hole, bringing my fence up to the board? Will I get a true straight clean slot this way, with no wobble? Thanks for any and all answers! Paul |
#6
Posted to rec.woodworking
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Cutting slot using router table
sam wrote:
I know this is going to sound stupid, but my knowledge of a router is mostly limited to putting a fancy edge on plaques. I want to take a 30" length of 4" wide board and put a slot all the way through the board about 4" long. the centerline of the slot will be 3/4 of and inch from the edge of the board. Where do I put the fence? Do I hold the board above the router and slowly lower it in position, or do I drill my 5/16 hole first into the board and fit the router bit into the hole, bringing my fence up to the board? Will I get a true straight clean slot this way, with no wobble? Thanks for any and all answers! Paul Thanks for all the answers! I'm a little leary of lowering the board onto the table with a spinning router. I have ten fingers and I want to keep them! I think I will just drill the hole and experiment with scrap wood. My problem is I want it to look like it came from a professional shop. Thanks, Paul |
#7
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Cutting slot using router table
On Mar 19, 1:35*am, sam wrote:
sam wrote: I know this is going to sound stupid, but my knowledge of a router is mostly limited to putting a fancy edge on plaques. I want to take a 30" length of 4" wide board and put a slot all the way through the board about 4" long. the centerline of the slot will be *3/4 of and inch from the edge of the board. Where do I put the fence? Do I hold the board above the router and slowly lower it in position, or do I drill my 5/16 hole first into the board and fit the router bit into the hole, bringing my fence up to the board? Will I get a true straight clean slot this way, with no wobble? Thanks for any and all answers! Paul Thanks for all the answers! I'm a little leary of lowering the board onto the table with a spinning router. I have ten fingers and I want to keep them! I think I will just drill the hole and experiment with scrap wood. My problem is I want it to look like it came from a professional shop. Thanks, Paul Are you trying to make a stopped slot - where the slot does not come all the way to the edges of the board? I'm not clear from your description - it almost sounds like you're just trying to figure out how to set the fence and take into consideration the width of the cutter. If that's the case, there is no need to do a plunge cut, just add 1/2 the bit diameter to your 3/4 inch center line and you should have it. Like I said though, I might not be clear on what you are trying to accomplish... |
#8
Posted to rec.woodworking
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Cutting slot using router table
"sam" wrote in message ... I know this is going to sound stupid, but my knowledge of a router is mostly limited to putting a fancy edge on plaques. I want to take a 30" length of 4" wide board and put a slot all the way through the board about 4" long. the centerline of the slot will be 3/4 of and inch from the edge of the board. Where do I put the fence? Do I hold the board above the router and slowly lower it in position, or do I drill my 5/16 hole first into the board and fit the router bit into the hole, bringing my fence up to the board? Will I get a true straight clean slot this way, with no wobble? Thanks for any and all answers! Paul Your drawing does not "for sure" indicate whether you are using a router table and fence or a router with a fence. I'll assume you are using a router table. I did virtually the same thing on the drill press table fence that I posted on a.b.p.w. If you pre drill a hole to begin the slot you literally have to be dead on accurate. I don't recommend doing it this way, it is an unnecessary step. Start with a shallow cut and begin the cut as close to the far left end of the cut as possible. Basically you only want to feed the stock from right to left with the stock being between you and the fence. This direction will allow the spinning router bit to keep the stock pulled up against the fence. Going in the opposite direction will cause the bit to pull the stock away from the fence. To start the cut each time rest the tail end of the board on the table and hover the end to be cut above the bit and against the fence. With the tail end setting on the table it is easier to keep the board surface parallel to the table top. Slowly pivot the stock down on to the router bit until it rests on the table and then slowly feed the stock the required distance. Raise the bit a bit more and repeat until the bit goes all the way through the wood. |
#9
Posted to rec.woodworking
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Cutting slot using router table
"sam" wrote in message ... sam wrote: Thanks for all the answers! I'm a little leary of lowering the board onto the table with a spinning router. I have ten fingers and I want to keep them! I think I will just drill the hole and experiment with scrap wood. My problem is I want it to look like it came from a professional shop. Thanks, Paul I would be fearful of starting up a router bit in an existing hole. If it touches any where when you start the router it is going to grab and slap the board. Better to have the bit spinning before it comes in contact with the board. |
#10
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Cutting slot using router table
I just did this yesterday on some mortise holes. I used stops at each
end of the fence, and lowered the board on the spinning bit, with one end of the board resting on the table. Used a feather board to hold the board against the fence. BUT... I used some scraps first to 1st: set the exact depth of the cutter, 2nd: set the distance from the fence, and 3rd-17th! to set both stops. When all was perfect, I proceded on the actual pieces. Oh, yes, keep yer fingers well clear of that bit!!! Hope this helps..... |
#11
Posted to rec.woodworking
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Cutting slot using router table
"sam" wrote:
I want to take a 30" length of 4" wide board and put a slot all the way through the board about 4" long. the centerline of the slot will be 3/4 of and inch from the edge of the board. Where do I put the fence? Do I hold the board above the router and slowly lower it in position, or do I drill my 5/16 hole first into the board and fit the router bit into the hole, bringing my fence up to the board? Will I get a true straight clean slot this way, with no wobble? What you want to do is the functional equivalent of cutting a mortise using a router and a straight bit. IMHO, it is not possible to safely accomplish this operation using a fixed base router, router table with a fence. You need a plunge router and jigs that duplicate the functional equivalent of cutting a mortise. Do a Google for "mortise jig" to get and idea of an approach to solving your problem safely. Lew |
#12
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Cutting slot using router table
On Mar 19, 7:20*pm, "Lew Hodgett" wrote:
"sam" wrote: I want to take a 30" length of 4" wide board and put a slot all the way through the board about 4" long. the centerline of the slot will be *3/4 of and inch from the edge of the board. Where do I put the fence? Do I hold the board above the router and slowly lower it in position, or do I drill my 5/16 hole first into the board and fit the router bit into the hole, bringing my fence up to the board? Will I get a true straight clean slot this way, with no wobble? What you want to do is the functional equivalent of cutting a mortise using a router and a straight bit. IMHO, it is not possible to safely accomplish this operation using a fixed base router, router table with a fence. You need a plunge router and jigs that duplicate the functional equivalent of cutting a mortise. Do a Google for "mortise jig" to get and idea of an approach to solving your problem safely. Lew Better yet, look up "Multi-router" ala David Marks. Not only is this setup safe, accurate and easy - it's about the coolest router accessory I've ever seen. Might be a bit expensive, but it sure would be nice to have in the shop! |
#13
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Cutting slot using router table
"Mike" wrote in message ... Better yet, look up "Multi-router" ala David Marks. Not only is this setup safe, accurate and easy - it's about the coolest router accessory I've ever seen. Might be a bit expensive, but it sure would be nice to have in the shop! The Multirouter being a $3,000.00 router accessory it would be cheaper for the OP to simply pay a pro to do the "slot". |
#14
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Cutting slot using router table
Yes, super cool. I hope to have one soon. However, they only have an
8" throw so if you are doing a longer slot it will be a little less perfect for the job. Even though they are dead accurate, unclamping and moving the stock to continue a cut is never perfect. Probably more than perfect enough though. Interesting side note (to some): Many of the folks who I know that are using this unit to do furniture are often (or exclusively) using it like a domino with floating tenons when doing M&T. Even though it does mortise and tenon, the tenons are more setup and less consistent. I also see that most of these folks do not pin both sides of the joint, so in my opinion, they are not building furniture that will last forever. A true pinned M&T has a mechanical lock in addition to the glue and the glue will fail someday. On Mar 20, 5:58*am, Mike wrote: On Mar 19, 7:20*pm, "Lew Hodgett" wrote: "sam" wrote: I want to take a 30" length of 4" wide board and put a slot all the way through the board about 4" long. the centerline of the slot will be *3/4 of and inch from the edge of the board. Where do I put the fence? Do I hold the board above the router and slowly lower it in position, or do I drill my 5/16 hole first into the board and fit the router bit into the hole, bringing my fence up to the board? Will I get a true straight clean slot this way, with no wobble? What you want to do is the functional equivalent of cutting a mortise using a router and a straight bit. IMHO, it is not possible to safely accomplish this operation using a fixed base router, router table with a fence. You need a plunge router and jigs that duplicate the functional equivalent of cutting a mortise. Do a Google for "mortise jig" to get and idea of an approach to solving your problem safely. Lew Better yet, look up "Multi-router" ala David Marks. Not only is this setup safe, accurate and easy - it's about the coolest router accessory I've ever seen. Might be a bit expensive, but it sure would be nice to have in the shop!- Hide quoted text - - Show quoted text - |
#15
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Cutting slot using router table
"SonomaProducts.com" wrote
Yes, super cool. I hope to have one soon. However, they only have an 8" throw so if you are doing a longer slot it will be a little less perfect for the job. Even though they are dead accurate, unclamping and moving the stock to continue a cut is never perfect. Probably more than perfect enough though. The biggest source or error in this case would be the accuracy of the dimensioning of the stock to begin with. IOW, with the M-R, the cut will be as accurate as using the most accurate of fences on any other type of tool .... for you would clamp the stock to the table, and move the table, which is, in effect, the "fence" in this type of operation. An added benefit, that is not usually available when passing the stock over the cutting device, instead of vice versa, is that clamping pressure to the M-R's table can mitigate error in the flatness of the stock. Granted, as you say, we're talking a case of "perfect enough". Interesting side note (to some): Many of the folks who I know that are using this unit to do furniture are often (or exclusively) using it like a domino with floating tenons when doing M&T. Even though it does mortise and tenon, the tenons are more setup and less consistent. I also see that most of these folks do not pin both sides of the joint, so in my opinion, they are not building furniture that will last forever. A true pinned M&T has a mechanical lock in addition to the glue and the glue will fail someday. Yabbut, forever is a long time and the "pin" is also glued in, and, as you say, glue will fail someday ... and, it is arguable that the wood itself will not last "forever" in any event. It would be interesting to see some test results bearing out your contention. Like you, my gut feeling is that pinning would certainly add some mechanical strength to any joint, but how much, or whether it is necessary, is highly subjective. IME, it is not remotely necessary to pin a properly done "floating tenon" joint. AAMOF, in all the test results I've seen of the relative strengths of this type joint compared with various others, I've yet to see a test which "pinned" the floating tenon as one of its parameters. What is interesting in these tests is that the "rounded" floating tenons performed slightly better than squared ones. (Fine Woodworking, Nov 2006) And, while I've been known to do it myself, I would certainly NOT want to leave the impression with anyone that pinning their properly done floating tenon joinery is necessary to it's practical longevity. -- www.e-woodshop.net Last update: 10/22/08 KarlC@ (the obvious) |
#16
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Cutting slot using router table
I generally agree with your statements but inthe case of the
Multirouter and how it uses templates, the size accuracy of the tenon is mostly assured if you use good technique. The position and angle can be effected by the stock prep and it mightbe slightly off ceneter if stock thickness varies from the thickness used for setup, etc. The real "consistency" issue is related making cuts off the side of an end mill type cutter. You have this long cutter cutting on edge for more than an inch. It can flex. especially if you are doing long tennons. It also can have issues at the shoulders with some chip out or minor gouging, etc. It's a great system, it's just a little finicky to get it working well on tenons and takes some time to get used to it. I've heard it can be finicky for wide dovetails and finger joints also but I've only toyed with them for doing M&T. On Mar 20, 12:03*pm, "Swingman" wrote: "SonomaProducts.com" wrote Yes, super cool. I hope to have one soon. However, they only have an 8" throw so if you are doing a longer slot it will be a little less perfect for the job. Even though they are dead accurate, unclamping and moving the stock to continue a cut is never perfect. Probably more than perfect enough though. The biggest source or error in this case would be the accuracy of the dimensioning of the stock to begin with. IOW, with the M-R, the cut will be as accurate as using the most accurate of fences on any other type of tool ... for you would clamp the stock to the table, and move the table, which is, in effect, the "fence" in this type of operation. An added benefit, that is not usually available when passing the stock over the cutting device, instead of vice versa, is that clamping pressure to the M-R's table can mitigate error in the flatness of the stock. Granted, as you say, we're talking a case of "perfect enough". Interesting side note (to some): Many of the folks who I know that are using this unit to do furniture are often (or exclusively) using it like a domino with floating tenons when doing M&T. Even though it does mortise and tenon, the tenons are more setup and less consistent. I also see that most of these folks do not pin both sides of the joint, so in my opinion, they are not building furniture that will last forever. A true pinned M&T has a mechanical lock in addition to the glue and the glue will fail someday. Yabbut, forever is a long time and the "pin" is also glued in, and, as you say, glue will fail someday ... and, it is arguable that the wood itself will not last "forever" in any event. It would be interesting to see some test results bearing out your contention. Like you, my gut feeling is that pinning would certainly add some mechanical strength to any joint, but how much, or whether it is necessary, is highly subjective. IME, it is not remotely necessary to pin a properly done "floating tenon" joint. AAMOF, in all the test results I've seen of the relative strengths of this type joint compared with various others, I've yet to see a test which "pinned" the floating tenon as one of its parameters. What is interesting in these tests is that the "rounded" floating tenons performed slightly better than squared ones. (Fine Woodworking, Nov 2006) And, while I've been known to do it myself, I would certainly NOT want to leave the impression with anyone that pinning their properly done floating tenon joinery is necessary to it's practical longevity. --www.e-woodshop.net Last update: 10/22/08 KarlC@ (the obvious) |
#17
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Cutting slot using router table
"SonomaProducts.com" wrote I generally agree with your statements but inthe case of the Multirouter and how it uses templates, the size accuracy of the tenon is mostly assured if you use good technique. The position and angle can be effected by the stock prep and it mightbe slightly off ceneter if stock thickness varies from the thickness used for setup, etc. The real "consistency" issue is related making cuts off the side of an end mill type cutter. You have this long cutter cutting on edge for more than an inch. It can flex. especially if you are doing long tennons. It also can have issues at the shoulders with some chip out or minor gouging, etc. It's a great system, it's just a little finicky to get it working well on tenons and takes some time to get used to it. I've heard it can be finicky for wide dovetails and finger joints also but I've only toyed with them for doing M&T. You know, I've been seeing the above online for years now, mostly from one particular detractor who's become infamous on some forums for doing so, but he admits to not ever having, or using but momentarily, a M-R. AAMOF, I use mostly long 3/8 end mills by choice in mine, but have never had even a 1/4 end mill flex to any discernable degree when doing any task, although I admit it could do so if blunt force was used to bull through a cut ... but a router bit of that length would be far less likely to be lacking in the accuracy department, in my experience. Basically, it's a tool that is more than accurate enough for all woodworking tasks most woodworkers will ever put it through, and as with all accurate tools, a certain degree of delicacy should be exercised in the use thereof to get the greatest benefit. One this is for certain ... it is an absolutely invaluable "shop production" tool for a serious, professional woodworker, and it is a production chair maker's dream! I've seen your work, I'm most impressed with the quality and your expertise, and would say that you, of all folks, deserve one yourself! So, what are you waiting for? -- www.e-woodshop.net Last update: 10/22/08 KarlC@ (the obvious) |
#18
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Cutting slot using router table
"Swingman" wrote cut ... but a router bit of that length would be far less likely to be lacking in the accuracy department, in my experience. That should have been "... far more likely ..." ^ -- www.e-woodshop.net Last update: 10/22/08 KarlC@ (the obvious) |
#19
Posted to rec.woodworking
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Cutting slot using router table
sam wrote:
I know this is going to sound stupid, but my knowledge of a router is mostly limited to putting a fancy edge on plaques. I want to take a 30" length of 4" wide board and put a slot all the way through the board about 4" long. the centerline of the slot will be 3/4 of and inch from the edge of the board. Where do I put the fence? Do I hold the board above the router and slowly lower it in position, or do I drill my 5/16 hole first into the board and fit the router bit into the hole, bringing my fence up to the board? Will I get a true straight clean slot this way, with no wobble? Thanks for any and all answers! Paul Well this topic has gone far beyond answering my question. I don't have the money or the expertise to do some of the things suggested. My router is just not strong enough to cut a 5/16 inch slot in Fir, let alone cherry. I guess I'll have to come up with another way of tensioning the warp on my looms. but thanks to all who posted. Paul |
#20
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Cutting slot using router table
"sam" wrote in message ... : sam wrote: : I know this is going to sound stupid, but my knowledge of a router is : mostly limited to putting a fancy edge on plaques. : : I want to take a 30" length of 4" wide board and put a slot all the way : through the board about 4" long. the centerline of the slot will be 3/4 : of and inch from the edge of the board. Where do I put the fence? Do I : hold the board above the router and slowly lower it in position, or do I : drill my 5/16 hole first into the board and fit the router bit into the : hole, bringing my fence up to the board? Will I get a true straight : clean slot this way, with no wobble? : Thanks for any and all answers! : Paul : Well this topic has gone far beyond answering my question. I don't have : the money or the expertise to do some of the things suggested. My router : is just not strong enough to cut a 5/16 inch slot in Fir, let alone : cherry. I guess I'll have to come up with another way of tensioning the : warp on my looms. but thanks to all who posted. : Paul Why use a router table at all for this?? Attach your edge guide to the router, and set it so the edge is 3/4in from the centerline of the collet. Clamp stop blocks to your piece at a distance equal to half the width of you're routers base from each end of the slot you want to make. Install you're 5/16th bit, spiral flute is best for this type of work, and set it so it's just above the boards surface. Put the router on the board, with the edge guide tight against the board, and slide it back and forth. Eyeball to verify the stop blocks are stopping the bit at the correct point. Adjust if needed. Assuming you don't have a plunge router: Set the bit for a 1/8in cut, bring the edge guide against the board with the bit slightly above the surface. Turn the router on, lower the bit into the board and make your first pass. Turn router off, adjust for a slightly deeper cut, and make a second pass. Repeat until you have a slot. Tedious, but not difficult. A plunge router speeds things up a bit. Len |
#21
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Cutting slot using router table
sam wrote:
sam wrote: I know this is going to sound stupid, but my knowledge of a router is mostly limited to putting a fancy edge on plaques. I want to take a 30" length of 4" wide board and put a slot all the way through the board about 4" long. the centerline of the slot will be 3/4 of and inch from the edge of the board. Where do I put the fence? Do I hold the board above the router and slowly lower it in position, or do I drill my 5/16 hole first into the board and fit the router bit into the hole, bringing my fence up to the board? Will I get a true straight clean slot this way, with no wobble? Thanks for any and all answers! Paul Well this topic has gone far beyond answering my question. I don't have the money or the expertise to do some of the things suggested. My router is just not strong enough to cut a 5/16 inch slot in Fir, let alone cherry. I guess I'll have to come up with another way of tensioning the warp on my looms. but thanks to all who posted. Sam... With deep cuts, it's sometimes preferable to make repeated passes - with each pass removing a little more wood (perhaps 1/8"). It /can/ be done with a not-so-powerful table-mounted router, but as Puckdropper first mentioned, it's easier to exercise control with a hand-held plunge-based router with some kind of fence/guide and end stops to ensure repeatability. Before you change/compromise your design, think about getting a little direct help from someone who already has the expertise and tools to do the job easily and who'll be willing to let you watch and learn. -- Morris Dovey DeSoto Solar DeSoto, Iowa USA http://www.iedu.com/DeSoto/ |
#22
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Cutting slot using router table
"Morris Dovey" wrote in message It /can/ be done with a not-so-powerful table-mounted router, but as Puckdropper first mentioned, it's easier to exercise control with a hand-held plunge-based router with some kind of fence/guide and end stops to ensure repeatability. Maybe for you. From personal experience, I disagree. I can make perfectly accurate, repeatable cuts on my router table. With the hand held, I suck. Hardly ever use it and will go to the table every time if I can. I'd make the slot in multiple passes getting to about 1/2" of the end. Once through, I'd set up a mark or stop and slowly do the two ends. |
#23
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Cutting slot using router table
Ed Pawlowski wrote:
"Morris Dovey" wrote in message It /can/ be done with a not-so-powerful table-mounted router, but as Puckdropper first mentioned, it's easier to exercise control with a hand-held plunge-based router with some kind of fence/guide and end stops to ensure repeatability. Maybe for you. From personal experience, I disagree. I can make perfectly accurate, repeatable cuts on my router table. With the hand held, I suck. Hardly ever use it and will go to the table every time if I can. I'd make the slot in multiple passes getting to about 1/2" of the end. Once through, I'd set up a mark or stop and slowly do the two ends. First, the key is the guide. By "guide" I don't think he's talking about one of those crappy little fence thingies that come with some routers. Make up a carrier that rides on both edges of the board or a template that clamps to the board and you should get cuts as precise at the router table. If your router won't cut 5/16 by the way, I'd find out what was wrong with it--that's a little over 1/4 and a Bosch Colt or a Rotozip doesn't have any trouble with that. If it's a through cut though you may want to make multiple passes. |
#24
Posted to rec.woodworking
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Cutting slot using router table
Ed Pawlowski wrote:
"Morris Dovey" wrote in message It /can/ be done with a not-so-powerful table-mounted router, but as Puckdropper first mentioned, it's easier to exercise control with a hand-held plunge-based router with some kind of fence/guide and end stops to ensure repeatability. Maybe for you. From personal experience, I disagree. I can make perfectly accurate, repeatable cuts on my router table. With the hand held, I suck. Hardly ever use it and will go to the table every time if I can. I'd make the slot in multiple passes getting to about 1/2" of the end. Once through, I'd set up a mark or stop and slowly do the two ends. I'm working /really/ hard to not give you what I think of as a "Robatoy response". Next time you travel across Iowa on I-80, stop in at my shop for a good cup of coffee and we'll cure that problem with the hand-held router. :-D Then we'll cut the slot on one of the CNC machines and completely spoil you for anything less than a (nearly silent) 5 hp spindle. ;-) (O shucks - I did it anyway!) -- Morris Dovey DeSoto Solar DeSoto, Iowa USA http://www.iedu.com/DeSoto/ |
#25
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Cutting slot using router table
"J. Clarke" wrote in message First, the key is the guide. By "guide" I don't think he's talking about one of those crappy little fence thingies that come with some routers. Make up a carrier that rides on both edges of the board or a template that clamps to the board and you should get cuts as precise at the router table. My handheld is a DW 621. I did replace the base with one from Pat Warner and it helped. I made a cutting board and wanted a groove around it so I made a frame as a guide. Three straight out of four sides is getting better. I probably should take more time to practice. |
#26
Posted to rec.woodworking
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Cutting slot using router table
"Morris Dovey" wrote in message Next time you travel across Iowa on I-80, stop in at my shop for a good cup of coffee and we'll cure that problem with the hand-held router. :-D I may take you up on that. I do want to drive out that way some day. Then we'll cut the slot on one of the CNC machines and completely spoil you for anything less than a (nearly silent) 5 hp spindle. ;-) (O shucks - I did it anyway!) And I bet you don't even feel bad about it |
#27
Posted to rec.woodworking
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Cutting slot using router table
Morris Dovey wrote in
: Ed Pawlowski wrote: "Morris Dovey" wrote in message It /can/ be done with a not-so-powerful table-mounted router, but as Puckdropper first mentioned, it's easier to exercise control with a hand-held plunge-based router with some kind of fence/guide and end stops to ensure repeatability. Maybe for you. From personal experience, I disagree. I can make perfectly accurate, repeatable cuts on my router table. With the hand held, I suck. Hardly ever use it and will go to the table every time if I can. I'd make the slot in multiple passes getting to about 1/2" of the end. Once through, I'd set up a mark or stop and slowly do the two ends. I'm working /really/ hard to not give you what I think of as a "Robatoy response". Next time you travel across Iowa on I-80, stop in at my shop for a good cup of coffee and we'll cure that problem with the hand-held router. :-D Then we'll cut the slot on one of the CNC machines and completely spoil you for anything less than a (nearly silent) 5 hp spindle. ;-) (O shucks - I did it anyway!) Well, google maps says it's 1044 miles to you from here (07410), so maybe I'll wait a bit before coming over. Though I would really like to see your setup and your solar gadgets. Is there a train somewhere near? -- Best regards Han email address is invalid |
#28
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Cutting slot using router table
Han wrote:
Well, google maps says it's 1044 miles to you from here (07410), so maybe I'll wait a bit before coming over. Though I would really like to see your setup and your solar gadgets. Is there a train somewhere near? http://find.mapmuse.com/re1/map_brand_mm2.php?brandID=AMTRAK&init=42.0808,-93.5961,7&tlist=AMTRAK, Osceola, Iowa has the closest Amtrak station - and I'd be delighted to meet you at the station, show off shop, solar, and a bit of Iowa, and return you to the station. -- Morris Dovey DeSoto Solar DeSoto, Iowa USA http://www.iedu.com/DeSoto/ |
#29
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Cutting slot using router table
Morris Dovey wrote in
: Han wrote: Well, google maps says it's 1044 miles to you from here (07410), so maybe I'll wait a bit before coming over. Though I would really like to see your setup and your solar gadgets. Is there a train somewhere near? http://find.mapmuse.com/re1/map_bran...TRAK&init=42.0 808,-93.5961,7&tlist=AMTRAK, Osceola, Iowa has the closest Amtrak station - and I'd be delighted to meet you at the station, show off shop, solar, and a bit of Iowa, and return you to the station. I'll keep that in mind, Morris! Thank you! -- Best regards Han email address is invalid |
#30
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Cutting slot using router table
On Thu, 19 Mar 2009 11:48:07 +0000, Leon wrote
(in article ): "sam" wrote in message ... sam wrote: Thanks for all the answers! I'm a little leary of lowering the board onto the table with a spinning router. I have ten fingers and I want to keep them! I think I will just drill the hole and experiment with scrap wood. My problem is I want it to look like it came from a professional shop. Thanks, Paul I would be fearful of starting up a router bit in an existing hole. If it touches any where when you start the router it is going to grab and slap the board. Better to have the bit spinning before it comes in contact with the board. Agreed. assuming a router bit of the correct width... I'd lower the wood onto the spinning bit, some way into the length of the slot - pressing firmly into the fence - and climb cut (move the piece to the right) to the origin of the slot, then "properly" - right to left- for the rest, against a stop block. Frankly it would be easier with a hand-held router and a side fence. |
#31
Posted to rec.woodworking
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Cutting slot using router table
Yep, the MR can do the job and you are exactly right, with just a
little care it will always do a great job. I attributed the variance I have ssen to bit flexing and maybe I was really just seeing some small amount of variance in the whole tolerance chain. I think I do tend to bull things through with power tools. I will get a MR this year I hope. But I also hope to soon after that get a powermatic or some other single end tenoner and a Maka or Centorino swing chisel mortiser. Then I'll just push the button real hard if I am in a hurry. Thx for the compliment. On Mar 20, 2:29*pm, "Swingman" wrote: "SonomaProducts.com" wrote I generally agree with your statements but inthe case of the Multirouter and how it uses templates, the size accuracy of the tenon is mostly assured if you use good technique. The position and angle can be effected by the stock prep and it mightbe slightly off ceneter if stock thickness varies from the thickness used for setup, etc. The real "consistency" issue is related making cuts off the side of an end mill type cutter. You have this long cutter cutting on edge for more than an inch. It can flex. especially if you are doing long tennons. It also can have issues at the shoulders with some chip out or minor gouging, etc. It's a great system, it's just a little finicky to get it working well on tenons and takes some time to get used to it. I've heard it can be finicky for wide dovetails and finger joints also but I've only toyed with them for doing M&T. You know, I've been seeing the above online for years now, mostly from one particular detractor who's become infamous on some forums for doing so, but he admits to not ever having, or using but momentarily, a M-R. AAMOF, I use mostly long 3/8 end mills by choice in mine, but have never had even a 1/4 end mill flex to any discernable degree when doing any task, although I admit it could do so if blunt force was used to bull through a cut ... but a router bit of that length would be far less likely to be lacking in the accuracy department, in my experience. Basically, it's a tool that is more than accurate enough for all woodworking tasks most woodworkers will ever put it through, and as with all accurate tools, a certain degree of delicacy should be exercised in the use thereof to get the greatest benefit. One this is for certain ... it is an absolutely invaluable "shop production" tool for a serious, professional woodworker, and it is a production chair maker's dream! I've seen your work, I'm most impressed with the quality and your expertise, and would say that you, of all folks, deserve one yourself! * So, what are you waiting for? --www.e-woodshop.net Last update: 10/22/08 KarlC@ (the obvious)- Hide quoted text - - Show quoted text - |
#32
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Cutting slot using router table
"SonomaProducts.com" wrote in message Yep, the MR can do the job and you are exactly right, with just a little care it will always do a great job. I attributed the variance I Got a link to this router? |
#33
Posted to rec.woodworking
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Cutting slot using router table
"Bored Borg" wrote in message .com... Agreed. assuming a router bit of the correct width... I'd lower the wood onto the spinning bit, some way into the length of the slot - pressing firmly into the fence - and climb cut (move the piece to the right) to the origin of the slot, then "properly" - right to left- for the rest, against a stop block. Frankly it would be easier with a hand-held router and a side fence. You don't want to do a climb cut moving the work from left to right. The bit will pull the work away from the fence. If you let one end of the work set on the table top against a stop and lower the other end onto the spinning bit you have good control. I have performed this procedure probably 1500 times. I used to make mouth blocks for Steve Knight. Each mouth block was made out of Ipe and had 2, 1.5" long parallel slots in blanks that were about 2" wide and 3.5" long and ..375" thick I plunged the small piece of wood down on to the bit on the router table and against the fence. I did make a jig for hand held use but that took too much time and did not yield as accurate of results for me. Using a hand held resulted in having probably 30% more rejects than using the router table method. Each situation changes the method of attack. |
#34
Posted to rec.woodworking
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Cutting slot using router table
"Upscale" wrote in message ... "SonomaProducts.com" wrote in message Yep, the MR can do the job and you are exactly right, with just a little care it will always do a great job. I attributed the variance I Got a link to this router? Oddly named, it is not a router but a terrific accessory to attach your router to. http://www.jdstools.com/index.asp?Pa...n=Custom&ID=12 |
#35
Posted to rec.woodworking
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Cutting slot using router table
"Upscale" wrote in message ... "Leon" wrote in message Oddly named, it is not a router but a terrific accessory to attach your router to. http://www.jdstools.com/index.asp?Pa...n=Custom&ID=12 Well, that explains the cost that people were talking about. I searched for M-R Router not knowing that it referred to Multi-Router and came up with several thousand Mr. Router links. I wonder how it compares with the WoodRat? I cannot say however Swingman bought one a few years ago and used it immediately to build several round backed chairs. He used a jig and the MR to cut several slots in the curved upper back and lower back sections to receive and hold the long back slats. The tool is very well made, heavy duty, and operates smoothly. I would compare it in build quality and tolerances to a quality Cabinet saw or my HD Laguna band saw. You are getting what you pay for on this tool. It will easily last a life time. |
#36
Posted to rec.woodworking
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Cutting slot using router table
"Leon" wrote in message Oddly named, it is not a router but a terrific accessory to attach your router to. http://www.jdstools.com/index.asp?Pa...n=Custom&ID=12 Well, that explains the cost that people were talking about. I searched for M-R Router not knowing that it referred to Multi-Router and came up with several thousand Mr. Router links. I wonder how it compares with the WoodRat? |
#37
Posted to rec.woodworking
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Cutting slot using router table
In my opinion, the Woodrat and Leigh FMT are both fine pieces of
equipment but one step down towards the home builder. The Multi-Router is more towards the commercial side. I think the biggest advantages are both the flexibility to do more types of parts and the speed at which you can run parts through the system. With the Multi-router, once you have a setup and if you use the air clamps it is pretty high production. The Leign and Woodrat are not as robust of clamping systems and take more work to get the parts clamped in position. Of course a full production shop will have dedicated mortiser, tenoner, and dovetailers. The MR is really great for the one-off or short run custom funriture builder. The Woodworkers supply guys have a Woodtek version of the MR called the matchmaker. Haven't heard much about it but saw it at AWFS. Looks pretrty similar. I think it uses plastic templates which might be less expensive "maybe". Took forever to find on their website. Had to find exact name elsewhere. http://woodworker.com/ search matchmaker. On Mar 22, 9:14*am, "Upscale" wrote: "Leon" wrote in message Oddly named, it is not a router but a terrific accessory to attach your router to. http://www.jdstools.com/index.asp?Pa...n=Custom&ID=12 Well, that explains the cost that people were talking about. I searched for M-R Router not knowing that it referred to Multi-Router and came up with several thousand Mr. Router links. I wonder how it compares with the WoodRat? |
#38
Posted to rec.woodworking
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Cutting slot using router table
Ed Pawlowski wrote:
"Morris Dovey" wrote in message It /can/ be done with a not-so-powerful table-mounted router, but as Puckdropper first mentioned, it's easier to exercise control with a hand-held plunge-based router with some kind of fence/guide and end stops to ensure repeatability. Maybe for you. From personal experience, I disagree. I can make perfectly accurate, repeatable cuts on my router table. With the hand held, I suck. Hardly ever use it and will go to the table every time if I can. I'd make the slot in multiple passes getting to about 1/2" of the end. Once through, I'd set up a mark or stop and slowly do the two ends. I'd make the slot in multiple passes getting to about 1/2" of the end. Once through, I'd set up a mark or stop and slowly do the two ends. You know I never thought of that! When I drop the wood on top of the bit, when it goes through(before I begin the slot)I have tear out. Doing it in passes, would enable be to reach the surface slowly, hopefully eliminating the tear-out. |
#39
Posted to rec.woodworking
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Cutting slot using router table
You are absolutely right of course. I was merely advocating a climb cut
_just_ to get the bit completely vertical at the extreme end of the slot but ONLY if the bit is the final slot width so it's cutting on both sides of the slot at the same time, definitely not for widening the not_against_the_fence side of a slot. I do, however, bow to your deeper knowledge of slots and I agree that climb cutting is generally a Very Bad Thing. On Sun, 22 Mar 2009 14:15:02 +0000, Leon wrote (in article ): "Bored Borg" wrote in message .com... Agreed. assuming a router bit of the correct width... I'd lower the wood onto the spinning bit, some way into the length of the slot - pressing firmly into the fence - and climb cut (move the piece to the right) to the origin of the slot, then "properly" - right to left- for the rest, against a stop block. Frankly it would be easier with a hand-held router and a side fence. You don't want to do a climb cut moving the work from left to right. The bit will pull the work away from the fence. If you let one end of the work set on the table top against a stop and lower the other end onto the spinning bit you have good control. I have performed this procedure probably 1500 times. I used to make mouth blocks for Steve Knight. Each mouth block was made out of Ipe and had 2, 1.5" long parallel slots in blanks that were about 2" wide and 3.5" long and .375" thick I plunged the small piece of wood down on to the bit on the router table and against the fence. I did make a jig for hand held use but that took too much time and did not yield as accurate of results for me. Using a hand held resulted in having probably 30% more rejects than using the router table method. Each situation changes the method of attack. |
#40
Posted to rec.woodworking
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Cutting slot using router table
"Bored Borg" wrote in message .com... You are absolutely right of course. I was merely advocating a climb cut _just_ to get the bit completely vertical at the extreme end of the slot but ONLY if the bit is the final slot width so it's cutting on both sides of the slot at the same time, definitely not for widening the not_against_the_fence side of a slot. Your thinking makes a good case however if the bit is the final width of the slot the bit is really only cutting in "1" place in the slot. It is not cutting on eigher the fence or far side of the slot, it is cutting on the leading side of the bit back to tangent with either the sides of the slot, It is the direction of rotation on that leading side of the bit that will determine which way the work will be pulled by the bit. If pushing the stock from right to left the leading edge of the bit is on the right end of the slot, turning away from you towards the fence. If you are feeding left to right the leading side of the bit is on the left end of the slot, turning towards you and away from the fence. I do, however, bow to your deeper knowledge of slots and I agree that climb cutting is generally a Very Bad Thing. Don't bow to me, I am the one that mentioned in an earlier post that I probably cut 1500 of these type slots in Ipe. Just last week when making a DP fence with a similar slot I forgot that you absolutely need to as close to the extreme left end of the slot as possible. I plunged the slot starting it near where I wanted it to begin and went left to right 1/2" to establish that end of the slot. The bit immediately pulled the work away from the router table fence a bit and I ended up with a slight bit of wobble in the slot. When I was cutting the many slots in Ipe I was always using stops for both ends of the work. "Beginning against the right end stop" and pushing towards the left end stop insured that I did not go in both directions to make the slot. |
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