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#1
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Table saw wood splitter/anti kick back question
The Unisaw that I bought has the tongue behind the blade to split/anti kick
back the wood, how many people use this? It would seem it would help keep the wood against the fence. My dad who has been wood working for ever and has written books for fine wood working doesn't use one and see's no reason too. But it seems to me that it would help make a clean cut any thoughts? |
#2
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Table saw wood splitter/anti kick back question
Wayne:
Hmm. I presume Dad has all of his fingers. Kelly Meher (another FWW writer) and is regarded as a teacher and craftsman, always advises to use a splitter. I use a Unisaw at the adult ed. I never cut without a splitter. I saw the results of a kickback once - no injury, but boy it was scary enough. Albeit, there are some, repeat some, cuts that a splitter doesn't work (like angles and dado's), but that is very rare and there are ways around that as well. Vote me as pro-splitter! MJ Wallace |
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Table saw wood splitter/anti kick back question
wayne mak wrote:
The Unisaw that I bought has the tongue behind the blade to split/anti kick back the wood, how many people use this? It would seem it would help keep the wood against the fence. My dad who has been wood working for ever and has written books for fine wood working doesn't use one and see's no reason too. But it seems to me that it would help make a clean cut any thoughts? What makes you think a splitter helps make a clean cut, Wayne? Proper alignment, good techinique and the proper sharp blade is what provides a clean cut; not the splitter. Dave |
#4
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Table saw wood splitter/anti kick back question
I agree that is doesn't make a clean cut, but it would seem it might aid in
keeping the stock even with the fence "David" wrote in message ... wayne mak wrote: The Unisaw that I bought has the tongue behind the blade to split/anti kick back the wood, how many people use this? It would seem it would help keep the wood against the fence. My dad who has been wood working for ever and has written books for fine wood working doesn't use one and see's no reason too. But it seems to me that it would help make a clean cut any thoughts? What makes you think a splitter helps make a clean cut, Wayne? Proper alignment, good techinique and the proper sharp blade is what provides a clean cut; not the splitter. Dave |
#5
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Table saw wood splitter/anti kick back question
If you are careful you do not need a splitter.
Unless you are an awful lot better than me, you are not careful all the time; so a splitter is a darn good idea. First serious kickback you get will make you a believer. |
#6
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Table saw wood splitter/anti kick back question
wayne mak said:
The Unisaw that I bought has the tongue behind the blade to split/anti kick back the wood, how many people use this? It would seem it would help keep the wood against the fence. My dad who has been wood working for ever and has written books for fine wood working doesn't use one and see's no reason too. But it seems to me that it would help make a clean cut any thoughts? The 'tongue' you refer to is actually called a splitter. Yours is also equipped with anti-kickback pawls and blade guard. It is not used to obtain a clean cut, but rather to protect you from the tension contained in most wood. As you cut, the wood may close up on the blade, thereby causing a kickback - which is a nasty, nasty thing. The pawls may also help in preventing the wood from being launched at high speed towards the front of the saw. These may or not be effective, depending on the design, the cut, and the HP of the saw. I don't use one for some cuts - MDF and sheet goods for instance usually don't contain wood under tension. But when ripping long boards, that poorly designed sucker goes on there - every time! Dado's are also impossible with the splitter mounted. The fence, blade, and general tune of the saw determines the quality of the cut. Greg G. |
#7
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Table saw wood splitter/anti kick back question
wayne mak said:
I agree that is doesn't make a clean cut, but it would seem it might aid in keeping the stock even with the fence Your technique is what determines that. If you are depending on the splitter to hold your work against the fence, your technique needs to improve. Greg G. |
#8
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Table saw wood splitter/anti kick back question
The splitter is intended to keep wood from binding directly behind the blade
causing it to be forced up and over the blade - at a pretty dangerous speed. When cutting wood, stresses can be relieved that force them to start moving - it doesn't take much to get a kickback and possible serious injury. I'll bet if you asked your father how many close calls he's had with kickback you may reconsider what he's doing as an unsafe practice. Doesn't mean he can't get away with it but the odds are that it will one day catch him big time. You stated he has no reason to use a splitter. Not sure I would care to read what he has to say for fear of picking up some bad practices that I haven't already tried on my own. He's either the luckiest guy on earth, has some of the best wood around or doesn't use his tablesaw very often. A good splitter is not inconvenient to use and being lazy about using one is putting yourself at risk unnecessarily. Bob S. "wayne mak" wrote in message ... I agree that is doesn't make a clean cut, but it would seem it might aid in keeping the stock even with the fence "David" wrote in message ... wayne mak wrote: The Unisaw that I bought has the tongue behind the blade to split/anti kick back the wood, how many people use this? It would seem it would help keep the wood against the fence. My dad who has been wood working for ever and has written books for fine wood working doesn't use one and see's no reason too. But it seems to me that it would help make a clean cut any thoughts? What makes you think a splitter helps make a clean cut, Wayne? Proper alignment, good techinique and the proper sharp blade is what provides a clean cut; not the splitter. Dave |
#9
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Table saw wood splitter/anti kick back question
I understand how and why it works, my father is now 75 years old and still
uses his unisaw daily, I am not saying what is doing is the best. "BobS" wrote in message ... The splitter is intended to keep wood from binding directly behind the blade causing it to be forced up and over the blade - at a pretty dangerous speed. When cutting wood, stresses can be relieved that force them to start moving - it doesn't take much to get a kickback and possible serious injury. I'll bet if you asked your father how many close calls he's had with kickback you may reconsider what he's doing as an unsafe practice. Doesn't mean he can't get away with it but the odds are that it will one day catch him big time. You stated he has no reason to use a splitter. Not sure I would care to read what he has to say for fear of picking up some bad practices that I haven't already tried on my own. He's either the luckiest guy on earth, has some of the best wood around or doesn't use his tablesaw very often. A good splitter is not inconvenient to use and being lazy about using one is putting yourself at risk unnecessarily. Bob S. "wayne mak" wrote in message ... I agree that is doesn't make a clean cut, but it would seem it might aid in keeping the stock even with the fence "David" wrote in message ... wayne mak wrote: The Unisaw that I bought has the tongue behind the blade to split/anti kick back the wood, how many people use this? It would seem it would help keep the wood against the fence. My dad who has been wood working for ever and has written books for fine wood working doesn't use one and see's no reason too. But it seems to me that it would help make a clean cut any thoughts? What makes you think a splitter helps make a clean cut, Wayne? Proper alignment, good techinique and the proper sharp blade is what provides a clean cut; not the splitter. Dave |
#10
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Table saw wood splitter/anti kick back question
wayne mak wrote:
I agree that is doesn't make a clean cut, but it would seem it might aid in keeping the stock even with the fence "David" wrote in message ... wayne mak wrote: The Unisaw that I bought has the tongue behind the blade to split/anti kick back the wood, how many people use this? It would seem it would help keep the wood against the fence. My dad who has been wood working for ever and has written books for fine wood working doesn't use one and see's no reason too. But it seems to me that it would help make a clean cut any thoughts? What makes you think a splitter helps make a clean cut, Wayne? Proper alignment, good techinique and the proper sharp blade is what provides a clean cut; not the splitter. Dave Relying on the splitter to keep the stock even with the fence is worse than bad techinque; it doesn't even WORK. Try doing a glue line rip with sloppy technique just because you have a splitter. The results will suck. Dave |
#11
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Table saw wood splitter/anti kick back question
wayne mak (in ) said:
| The Unisaw that I bought has the tongue behind the blade to | split/anti kick back the wood, how many people use this? It would | seem it would help keep the wood against the fence. My dad who has | been wood working for ever and has written books for fine wood | working doesn't use one and see's no reason too. But it seems to me | that it would help make a clean cut any thoughts? I pop mine up when ripping - not to hold work against the fence (I use a featherboard /and/ board buddies for that), but rather to avoid having a kerf close slightly and grab the blade - which would result in kickback. The splitter gets popped back down when I'm cross-cutting - it gets in the way of my sled. -- Morris Dovey DeSoto Solar DeSoto, Iowa USA http://www.iedu.com/DeSoto/solar.html |
#12
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Table saw wood splitter/anti kick back question
There have been quite a few kickback posts during the past month or two. It
is something you do not want to experience if you can avoid it. The splitter, with kickpack pawls helps a lot. RonB |
#13
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Table saw wood splitter/anti kick back question
If you are careful you do not need a splitter.
That was what I thought until I was cutting some 6/4 oak and it bent right back into itself as it came out of the blade. I saw it happen and shut the saw off when it was a few inches beyond the blade, and that blade came to a stop like it had disc brakes. I had to pull the kerf apart to get it off. I made a splitter right then and there out of the blade for an old combination square, and the only time I take it out is when I cut dados etc. An old combo square blade works great, by the way. It's just about exactly 1/8 thick. |
#14
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Table saw wood splitter/anti kick back question
On Thu, 3 Nov 2005 18:05:40 -0500, "wayne mak"
wrote: The Unisaw that I bought has the tongue behind the blade to split/anti kick back the wood, how many people use this? It would seem it would help keep the wood against the fence. My dad who has been wood working for ever and has written books for fine wood working doesn't use one and see's no reason too. But it seems to me that it would help make a clean cut any thoughts? I've been working with tablesaws most of my adult life. the first time I cut on one with a splitter was a couple of years ago when I added one to my saw. so. it is entirely possible to work safely without one. a poorly set splitter is more dangerous than no splitter. a poorly set splitter is less accurate than no splitter. a well set splitter helps resist kickback. a well set splitter helps keep the wood from drifting away from the fence. a splitter that is inconvenient to install and remove will soon be gathering dust in a dark corner. a pin in the throat plate works well and is easy to set up and use. |
#15
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Table saw wood splitter/anti kick back question
Wayne,
One has to wonder. Your father has written several books (published byTauton Press) and in the introduction of "Making Heirloom Toys" he makes the following statement: "The projects represent various levels of difficulty, but all require strict attention to safety. Cutting and drilling small pieces can present serious safety hazards, and throughout the book I've stressed the importance of using jigs, fixtures and safe practices to minimize the risk of injury....." Since I've not read the book, perhaps his comments don't include the tablesaw -or- if he's always just ripping short lengths for toys, there may no need for a splitter. In any case, your father is a lucky man and I don't just mean about not getting any kickbacks but for still being active in a hobby he obviously loves doing, writing about it and for having a son that isn't nagging him about his methods of work (although you should...;-) You've read the collective comments of the Wreck and now it's your decision to use a splitter or not. The one you have may be a POS and as I recall, you're a machinist and have the tools to make one. If you like, I could post some pictures of what the add-on splitter from Beismeyer looks like for a Jet cabinet saw and you could then design one for your Uni or spend about $130 to purchase one. Making one is definitely within your equipment range and skill set from what I recall of the pictures of your shop. If you want pics, I can email them to the address you posted. What file size would you like for each picture? Bob S. "wayne mak" wrote in message ... I understand how and why it works, my father is now 75 years old and still uses his unisaw daily, I am not saying what is doing is the best. "BobS" wrote in message ... The splitter is intended to keep wood from binding directly behind the blade causing it to be forced up and over the blade - at a pretty dangerous speed. When cutting wood, stresses can be relieved that force them to start moving - it doesn't take much to get a kickback and possible serious injury. I'll bet if you asked your father how many close calls he's had with kickback you may reconsider what he's doing as an unsafe practice. Doesn't mean he can't get away with it but the odds are that it will one day catch him big time. You stated he has no reason to use a splitter. Not sure I would care to read what he has to say for fear of picking up some bad practices that I haven't already tried on my own. He's either the luckiest guy on earth, has some of the best wood around or doesn't use his tablesaw very often. A good splitter is not inconvenient to use and being lazy about using one is putting yourself at risk unnecessarily. Bob S. "wayne mak" wrote in message ... I agree that is doesn't make a clean cut, but it would seem it might aid in keeping the stock even with the fence "David" wrote in message ... wayne mak wrote: The Unisaw that I bought has the tongue behind the blade to split/anti kick back the wood, how many people use this? It would seem it would help keep the wood against the fence. My dad who has been wood working for ever and has written books for fine wood working doesn't use one and see's no reason too. But it seems to me that it would help make a clean cut any thoughts? What makes you think a splitter helps make a clean cut, Wayne? Proper alignment, good techinique and the proper sharp blade is what provides a clean cut; not the splitter. Dave |
#16
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Table saw wood splitter/anti kick back question
That would be great if you could send pictures, my email will take a good
size file. I will be out of town after the morning so my PC won't be downloading for a week. Much of what my father does is very accurate and smaller parts, the detal in his work is as good as it gets. "BobS" wrote in message .. . Wayne, One has to wonder. Your father has written several books (published byTauton Press) and in the introduction of "Making Heirloom Toys" he makes the following statement: "The projects represent various levels of difficulty, but all require strict attention to safety. Cutting and drilling small pieces can present serious safety hazards, and throughout the book I've stressed the importance of using jigs, fixtures and safe practices to minimize the risk of injury....." Since I've not read the book, perhaps his comments don't include the tablesaw -or- if he's always just ripping short lengths for toys, there may no need for a splitter. In any case, your father is a lucky man and I don't just mean about not getting any kickbacks but for still being active in a hobby he obviously loves doing, writing about it and for having a son that isn't nagging him about his methods of work (although you should...;-) You've read the collective comments of the Wreck and now it's your decision to use a splitter or not. The one you have may be a POS and as I recall, you're a machinist and have the tools to make one. If you like, I could post some pictures of what the add-on splitter from Beismeyer looks like for a Jet cabinet saw and you could then design one for your Uni or spend about $130 to purchase one. Making one is definitely within your equipment range and skill set from what I recall of the pictures of your shop. If you want pics, I can email them to the address you posted. What file size would you like for each picture? Bob S. "wayne mak" wrote in message ... I understand how and why it works, my father is now 75 years old and still uses his unisaw daily, I am not saying what is doing is the best. "BobS" wrote in message ... The splitter is intended to keep wood from binding directly behind the blade causing it to be forced up and over the blade - at a pretty dangerous speed. When cutting wood, stresses can be relieved that force them to start moving - it doesn't take much to get a kickback and possible serious injury. I'll bet if you asked your father how many close calls he's had with kickback you may reconsider what he's doing as an unsafe practice. Doesn't mean he can't get away with it but the odds are that it will one day catch him big time. You stated he has no reason to use a splitter. Not sure I would care to read what he has to say for fear of picking up some bad practices that I haven't already tried on my own. He's either the luckiest guy on earth, has some of the best wood around or doesn't use his tablesaw very often. A good splitter is not inconvenient to use and being lazy about using one is putting yourself at risk unnecessarily. Bob S. "wayne mak" wrote in message ... I agree that is doesn't make a clean cut, but it would seem it might aid in keeping the stock even with the fence "David" wrote in message ... wayne mak wrote: The Unisaw that I bought has the tongue behind the blade to split/anti kick back the wood, how many people use this? It would seem it would help keep the wood against the fence. My dad who has been wood working for ever and has written books for fine wood working doesn't use one and see's no reason too. But it seems to me that it would help make a clean cut any thoughts? What makes you think a splitter helps make a clean cut, Wayne? Proper alignment, good techinique and the proper sharp blade is what provides a clean cut; not the splitter. Dave |
#17
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Table saw wood splitter/anti kick back question
Ok this sounds like a peice of table saw EQ I need to know about...can
anyone send me a link to a page where I can look at one, I want to advoid kickback when I get a my table saw and anything to help do that I'm all for. Back in highschool my shop teacher actully demastrated kick backs to us and I know I sure the heck would not want to be behind that thing (hence why you stand to the side and not directly behind the wood) thanks Deborah wrote in message ... On Thu, 3 Nov 2005 18:05:40 -0500, "wayne mak" wrote: The Unisaw that I bought has the tongue behind the blade to split/anti kick back the wood, how many people use this? It would seem it would help keep the wood against the fence. My dad who has been wood working for ever and has written books for fine wood working doesn't use one and see's no reason too. But it seems to me that it would help make a clean cut any thoughts? I've been working with tablesaws most of my adult life. the first time I cut on one with a splitter was a couple of years ago when I added one to my saw. so. it is entirely possible to work safely without one. a poorly set splitter is more dangerous than no splitter. a poorly set splitter is less accurate than no splitter. a well set splitter helps resist kickback. a well set splitter helps keep the wood from drifting away from the fence. a splitter that is inconvenient to install and remove will soon be gathering dust in a dark corner. a pin in the throat plate works well and is easy to set up and use. |
#18
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Table saw wood splitter/anti kick back question
"David" wrote in message ... wayne mak wrote: What makes you think a splitter helps make a clean cut, Wayne? Proper alignment, good techinique and the proper sharp blade is what provides a clean cut; not the splitter. Dave Send a perfectly flat, straight, and case hardened piece of wood through and you will see how a splitter keeps the piece of wood from closing back up on the blade. With out a splitter the back side of the blades begins to cut again leaving a rough edge. |
#19
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Table saw wood splitter/anti kick back question
"Deborah Kelly" wrote in message ... Ok this sounds like a peice of table saw EQ I need to know about...can anyone send me a link to a page where I can look at one, I want to advoid kickback when I get a my table saw and anything to help do that I'm all for. Back in highschool my shop teacher actully demastrated kick backs to us and I know I sure the heck would not want to be behind that thing (hence why you stand to the side and not directly behind the wood) thanks Deborah In the USA most any new TS will include a splitter as an integral part of the blade guard. That said, I would suggest a better one. |
#20
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Table saw wood splitter/anti kick back question - Try a riving knife
A splitter, as well as a riving knife, is intended to do one
thing - keep the kerf from closing and making contact with the teeth at the back of the blade coming up out of the saw table top, being lifted up off the table and into the teeth near the top of the blade. From there the speed of the part goes to about 150 mph and the direction can be anyone's guess. A splitter typically is close to the back of the blade WHEN THE BLADE IS SET TO ITS MAXIMUM HEIGHT. But as the blade is lowered, the distance between the spliiter and the rear teeth increases. When cutting 1/2" - 3/4" stock, which are what most of us typically are working with, there can be several inches between the splitter and the rear teeth. In that situation, the splitter isn't doing what it's supposed to do at the beginning of the cut. As for "anti-kickback pawls" they're typically more of a PITA and less of a "safety device". There are several types of kickback and causes. If you understand what does what you can take the steps you deem necessary to minimize kickback. So here's some info that should give you a good start on what you need to know about the causes of kickback. Some are obvious and some aren't. A cupped, twisted or bowed piece of wood can be far more dangerous than no splitter or riving knife. http://home.comcast.net/~charliebcz/KickBack1.html charlie b (for the regulars, sorry about posting the url again - but if it prevents one injury ...) |
#21
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Table saw wood splitter/anti kick back question
"wayne mak" wrote in
: The Unisaw that I bought has the tongue behind the blade to split/anti kick back the wood, how many people use this? It would seem it would help keep the wood against the fence. My dad who has been wood working for ever and has written books for fine wood working doesn't use one and see's no reason too. But it seems to me that it would help make a clean cut any thoughts? The splitter shouldn't have much to do with cut quality, but it is an excellent safety device. I always use a splitter and blade guard whenever possible. |
#22
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Table saw wood splitter/anti kick back question
On Thu, 3 Nov 2005 22:56:02 -0600, "Deborah Kelly"
wrote: Ok this sounds like a peice of table saw EQ I need to know about...can anyone send me a link to a page where I can look at one, I want to advoid kickback when I get a my table saw and anything to help do that I'm all for. Back in highschool my shop teacher actully demastrated kick backs to us and I know I sure the heck would not want to be behind that thing (hence why you stand to the side and not directly behind the wood) thanks Deborah spent a bit of time in the archives, but didn't find what I was looking for. but this is close: http://www.homestead.com/ValRoseWoodWorks/Splitter.html and this is good for general reading: http://groups.google.com/group/rec.woodworking/search?group=rec.woodworking&q=pin+splitter&qt_g=1 &searchnow=Search+this+group aka: http://tinyurl.com/7jtf3 some good reading about saw safety: http://www.amgron.clara.net/circular.../accidents.htm although it's in british rather than proper 'ol amurican english... here's a website that has a pretty good pictu http://www.woodworkingtips.com/etips/etip060900ws.html of what Unisaw A100 (keeter) is describing: Newsgroups: rec.woodworking From: Unisaw A100 The following presumes you have a right tilting Delta Unisaw. Please make the necessary adjustments for your make of saw, insert thickness and blade tilt direction. How To Make A Zero Clearance Insert With Splitter: 1) Go to Home Depot/Lowes and give an eye up to the stack of 1/2" MDF. 2) Find a sheet that hasn't been dinged by the fork lift tines during the twice weekly Warehouse Rodeo and Jousting Championship. 3) Wrestle the sheet off and onto one of the (insert color here) flat carts. 4) Wheel it back to the nice man at the Safety Speed-Cut panel saw. 5) Instruct him to make cross cuts at about 32". You may choose to use another size(s). Exercise this option now. 6) Load the cut sheets back onto the cart, stand in line, let everyone know how peeved you are that you are being made to stand in line, make an ass of yourself and then pay the nice people at the check out. 7) When back at the shop set aside one piece for a table saw sled to be built later. Set another aside for future projects or jigs and fixtures. 8) With the last piece begin ripping the sheet into pieces 1/16"ish wider than your table saw blade insert. 9) Cross cut the pieces 1/16"ish longer than your insert. 10) Make a template. Here's where people usually chime in to just use your present insert to make the new inserts. I prefer to make a template for reasons that will be made known shortly. 11) Start with your OEM insert and trace a line around it onto one of the MDF blanks. 12) Band saw (jig saw) the rounded ends off. 13) Go back to Home Depot/Lowes and buy some 3M (Scotch) No. 4011 Exterior Mounting Tape. It has a proper amount of tackiness but isn't so think that the template/item being cut will shift thus spoiling the cut. 14) Double face tape the MDF to the OEM insert with 4-pieces of tape 1" long. Press together using hand pressure. 15) Load router table with router bit having a bearing on top. Raise bit until the cutter is a red cubic hair or so above the thickness of the MDF. 16) Run the MDF/OEM insert sandwich into the bit and trim off all edges and ends. 17) Go back to Home Depot/Lowes and purchase a box of 1/2-8 flat head Phillips sheet metal screws. 18) Using the OEM insert to locate, drill and countersink the face of your template for four of these screws. 19) Insert screws so that points just peek out by 1/32"ish. 20) Using this template take another of the MDF blanks and press the pointy end screw side onto the blank. 21) Rout off the excess as you did above with the template and OEM insert. 22) Rinse and repeat until all blanks are routed. 23) Drill and countersink the face of the MDF insert for leveling screws. Step 20 will have pre-located these for you. Insert 1/2-8 flat head Phillips screws into freshly drilled and countersunk holes so tips are just coming through. 24) Into the edge of each template drill and countersink a hole for a 3/4" course thread drywall screw of other screw of your choosing. Do the same with one screw on the end of the MDF insert. Be sure to oversize this hole so the screw does not split the MDF. This screw hole is not structural. 25) Insert screws into freshly drilled and countersunk holes. 26) Place MDF insert into blade opening in table saw. Check for fit. Adjust leveling screws so insert is flush with the saw table. Adjust the edge screws in or out for perfect snug fit. 26) Repeat the above with three blanks for every saw blade you own, i.e., you have four blades then fit up twelve inserts. 27) Using your dado set place onto the saw arbor the two outside cutters. 28) Insert MDF insert into blade opening and park the saw fence over it but to the wide side away from the line of the dado set below. 29) Raise dado set until the cutters are just starting to bulge through the face of the MDF insert. 30) Repeat until all inserts are done. 31) Replace dado cutters with your saw blade and repeat the raising through though this time raise the blade as high as it will go. 32) Carefully measure from the fence side face of the saw blade to the fence side edge of the insert and set saw fence at that setting. 33) Feed one of the inserts into the saw blade for 1 1/2". Stop and with draw. 34) Set up porty planer and begin planing stock to a thickness that matches the kerf made in the last step. Note: Don't presume that you only need to plane the wood to the advertised blade kerf unless your saw has zero run out. 35) Cut and fit the freshly planed stock into the kerf. Let it stick out a minimum of 1/4" plus the thickness of whatever material you expect to be cutting, i.e., for 3/4" material you will want this to stand 1". 36) Glue freshly trimmed, freshly planed stock into kerf slot in the MDF insert. When dry, insert MDF insert into saw blade opening and rip a piece of wood. Check to see that there is no gap between the wood and the freshly glued, freshly trimmed, freshly planed stock. 37) Repeat until all inserts for all inserts are done. 38) Set aside balance of insert blanks to be used at a later date or for when you set up for dado cutting. 39) Post your horrible experience at Home Depot/Lowes on rec.woodorking and make an ass of yourself. UA100 |
#23
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Table saw wood splitter/anti kick back question - Try a riving knife
charlie b said:
A splitter, as well as a riving knife, is intended to do one thing - keep the kerf from closing and making contact with the teeth at the back of the blade coming up out of the saw table top, being lifted up off the table and into the teeth near the top of the blade. From there the speed of the part goes to about 150 mph and the direction can be anyone's guess. It is my understanding that many European machines come with riving knives that raise and lower with the blade to retain optimal spacing. The guard is a separate entity. But the difference in name is more of a regional 'he says - she says' difference than a physical one. Correct? As for "anti-kickback pawls" they're typically more of a PITA and less of a "safety device". And if the pawls are not sharp enough to dig into the wood, or strong enough to restrain the piece against 3 HP of throbbing Baldor, they are useless anyway. (for the regulars, sorry about posting the url again - but if it prevents one injury ...) More thorough information on these facts should probably be given emphasis in a new machine's instruction manual, rather than on some outdated, dysfunctional OEM splitter. It's Christmas time - lot's of new table saws and lots of new owners... We don't want to kill off any of next years tool shoppers... Simply meeting some UL/CSA standard as to the existence of a blade guard doesn't equate into a useable OR well designed feature. What it DOES indicate is that MFG's designed some minimal, crappy contraption that was needed to barely pass spec 20 years ago, and hasn't put one iota of though into it since. Let's take a poll - how many people here like OR use the guard that with their saw? A show of hands, please... Greg G. |
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Table saw wood splitter/anti kick back question
"BobS" wrote ........................... if he's always just ripping short lengths for toys, there may no need for a splitter. This is when the risk of a kickback is very high. Once the leading edge of the workpiece passes the centre of the blade, there is a possibility that even friction with the saw's plate could cause ejection. Jeff G -- Jeff Gorman, West Yorkshire, UK email : Username is amgron ISP is clara.co.uk www.amgron.clara.net |
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Table saw wood splitter/anti kick back question
"wayne mak" wrote The Unisaw that I bought has the tongue behind the blade to split/anti kick back the wood, how many people use this? It would seem it would help keep the wood against the fence. My dad who has been wood working for ever and has written books for fine wood working doesn't use one and see's no reason too. But it seems to me that it would help make a clean cut any thoughts? The purpose of the riving knife is explained on my web site. Please look at Circular Sawbench Safety - Riving Knife. The 'tongue' might be a splitter, a less effecive device that can allow too great a gap between itself and the up-running teeth. Jeff G -- Jeff Gorman, West Yorkshire, UK email : Username is amgron ISP is clara.co.uk www.amgron.clara.net |
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Table saw wood splitter/anti kick back question
"Deborah Kelly" writes:
Ok this sounds like a peice of table saw EQ I need to know about...can anyone send me a link to a page where I can look at one, I want to advoid kickback when I get a my table saw and anything to help do that I'm all for. I use a MJ Splitter, which installs into a zero clearance insert. http://www.microjig.com/MJ%20Splitter.htm The regular is $20, thin kerf version is $25. AVailable at Woodcraft, etc. -- Sending unsolicited commercial e-mail to this account incurs a fee of $500 per message, and acknowledges the legality of this contract. |
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Table saw wood splitter/anti kick back question
On Fri, 4 Nov 2005 08:09:10 -0000, "Jeff Gorman"
wrote: "wayne mak" wrote The Unisaw that I bought has the tongue behind the blade to split/anti kick back the wood, how many people use this? It would seem it would help keep the wood against the fence. My dad who has been wood working for ever and has written books for fine wood working doesn't use one and see's no reason too. But it seems to me that it would help make a clean cut any thoughts? The purpose of the riving knife is explained on my web site. Please look at Circular Sawbench Safety - Riving Knife. The 'tongue' might be a splitter, a less effecive device that can allow too great a gap between itself and the up-running teeth. Jeff G yep, riving knives are better than splitters. however, there are a large number of very fine old tablesaws in north america for which riving knives are not an option. on my 40 year old powermatic it's not a matter of what can be purchased commercially- there really is no way to mount one. a homemade splitter is better than no splitter, and really does go a long way to prevent kickback. |
#28
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Table saw wood splitter/anti kick back question - Try a riving knife
Mine is removed ONLY for non through cuts. My BT3000 came with riving
knife and blade guard. I've had case hardened wood clamp the riving knife which was about 3/16" from spinning teeth hard enough to stop forward movement. It is curved matching 10 blade shape. On Fri, 04 Nov 2005 02:45:01 -0500, Greg wrote: Let's take a poll - how many people here like OR use the guard that with their saw? A show of hands, please... |
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Table saw wood splitter/anti kick back question
On Thu, 3 Nov 2005 18:05:40 -0500, "wayne mak"
wrote: The Unisaw that I bought has the tongue behind the blade to split/anti kick back the wood, how many people use this? It would seem it would help keep the wood against the fence. My dad who has been wood working for ever and has written books for fine wood working doesn't use one and see's no reason too. But it seems to me that it would help make a clean cut any thoughts? FYI, I have a set of shop made zero clearance throat plates for various configurations. Rather than worrying about placing and removing the splitter I swap out a throat plate with a splitter glued in (1/8 strip of maple) and one without. Doesn't take long at all. But lookinig over the site at http://www.homestead.com/ValRoseWoodWorks/Splitter.html I think I am going to rethink what I do. |
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