| Project by Jim Finn | posted 497 days ago | 3094 views | 34 times favorited | 11 comments |  |
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In order to make these round and tapered objects I made a Jig/Sled. I got the idea from an old video I saw years ago. First picture shows the completed sled and the second the same sled with a piece of poplar ready to be cut. Also pictured are details of the hold down and of the end stop. The underside of the fence is shown with the “T bolts” protruding through the bottom. Included is a photo of the underside of the sled showing how I made the slide fit the “T” shaped guide in my table saw. I did this so that the sled will not tip out of the slot at either end of the travel of this sled. The washer works as a keeper to achieve this. I used a “T” track kit from Rockler and 3/4” MDF to make this .The sled measures 18” x 24” and the movable fence measures 5” x 30” I recessed the “T”track a bit and added some Masonite to the underside of the sled to get it recessed enough. I make tapered pieces to form vases and waste baskets as shown. I decide how many sections I want to make the object withand what width using a little geometry exercise. Circumference distance divided by the number of sections gives me their width. The cut angle is determined by the number of sections. 10 sections …360 (degrees) divided by 10 sections = 36 degrees. Divide this number by 2 because each miter is made up of two cuts , in this case 18 degrees each cut. (1/2 of 36 degrees).I set my table saw blade tilt to this number (18) using an digital angle gage. Set the sled to the taper desired and cut the sections using the hold down and end stop to position the workpiece. I make about 2-3 extra sections when making a project for two reasons. One is that I use cedar a lot and it sometimes splits or fails in cutting and the other is that when I assemble the item I add or remove a section to get the angles to fit best. The angle may not be perfect at 18 degrees depending on how much taper you have on the object.
-- In God We Trust
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11 comments so far
a1Jim
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87045 posts in 1744 days
#1 posted 497 days ago
Looks like that jig does a great job ,they are all well done.
-- W James Brokenbourgh Custom furniture maker http://artisticwoodstudio.com/
Bertha
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#2 posted 497 days ago
I like it! I especially like that you don’t have to rely on the fence.
-- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog
LukieB
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658 posts in 497 days
#3 posted 496 days ago
Very cool use of the T-track, but what I really like is your miter track washer trick. What’s holding the washer into the t-track?
-- Lucas, "Someday woodworks will be my real job, until then, there's this http://www.melbrownfarmsupply.com"
Jim Finn
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1062 posts in 1089 days
#4 posted 496 days ago
......”Very cool use of the T-track, but what I really like is your miter track washer trick. What’s holding the washer into the t-track?......”
A bolt and nut holds the washer to the “T” track.
-- In God We Trust
LesB
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899 posts in 1610 days
#5 posted 496 days ago
Great idea. I think I will copy it. I can see several uses for it.
Straightening a wavy edge on a board is one.
It appears you have a left tilting saw. When cutting a bevel do you think it would be safer to work from the right side of the blade (blade tilted away from the jig) so the board won’t pinch between the jig and the blade? I see a real kick back potential in that situation.
I have a right tilting table saw which causes me to put my fence on the other side of the blade when I’m cutting beveled cuts. This jig could save me that change.
-- Les B, Oregon
Jim Finn
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1062 posts in 1089 days
#6 posted 496 days ago
I have not had a problem with it tilting this way but you do have a point.
-- In God We Trust
tenontim
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2129 posts in 1912 days
#7 posted 496 days ago
I have basically the same jig, but not as nice as this one. I used T track on the bottom of mine, to keep it from tilting. I used toggle clamps, which are a pain sometimes. I’ll have to upgrade my sled to the refinements you have. Thanks for the post.
-- Tim-- http://www.tmuli.com
mcgriffith
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84 posts in 564 days
#8 posted 496 days ago
This is one project that I need to build for myself. It is really a cool sled, I think I will need to build one soon, as I have a use for ir now.
Thanks for sharing.
-- Michael TX, Not even my wife understands my sense of humor.
JohnMeeley
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244 posts in 500 days
#9 posted 495 days ago
I haven’t made mine yet, but I just invested in a t-slot bit. Now I need to infringe on your copyright, and get to work.
-- "The greatest pleasure in life is doing what others say you cannot do."-Walter Bagehot
helluvawreck
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#10 posted 495 days ago
It’s a fine jig and looks like it will serve you well. Nice work, Jim.
helluvawreck
http://woodworkingexpo.wordpress.com
-- If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away. Henry David Thoreau
Martyroc
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2708 posts in 473 days
#11 posted 449 days ago
Very nice, looks really good. I am making a cyclone DC with similar shape, ( I have a blog here about it). Kind of cheated and had sketch up and a calculator I made in MS Excel. I like your method it seems so much simpler
-- Martin ....always count the number of fingers you have before, and after using the saw.
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