I’ve been working on this Jig for quite a while now, about 2 months perhaps. I got to say that I’m very pleased with the final results, even thought there still some minor flaws that I need to complete (but I feel that the main part is ready to be shared)
This jig was published on Shopnotes #107 just in case anyone would like to try to build this one too. I already tried on my drill press and works like a charm.
I hope by this weekend to be able to add some kind of finish, the abrasive paper, angle gauge and the clamp block. I’ll be posting more information as I keep moving forward.
90% of the Jig is made of plywood 3/4”, the disks (8 in total, just 2 showing) are MDF 3/4” the pivot arm and the pivot block are maple 3/4”
There’s a star knob on the right side, its only use is to adjust the link belt tension.
A shot from the bottom of the jig shows you the link belt
Some of the inner working in detail
More detail views
Heres is were the 2 disks will be sitting in top of a thrust bearing
This is the list of the assembly hardware list
1) 1/2” dia. x 36” precision steel rod
1) 3/16” dia. x 6” steel rod
1) 1/2” I.D. x 15/16” O.D. thrust bearing
2) 1/2” washers
4) 1/2” I.D. x 3/4” O.D. 3/4” sleeve bearing
5) 1/2” steel washers
2) 1/2” I.D. stop collars
2) 3” O.D. pulley with 1/2” bore
1) 5/16”-18 star knob
1) 5/16”-18 3” carriage bolt
1) 5/16” washer
1) 1/2” wide x 36” link belt
If someone wants to give it a try I’ll be happy to help you, with sketches or any other necessary information.
Keep in mind that the precision steel rod its extremely hard. I tried with no luck to drill the holes, lucky me I work on a machine shop, so I just spoke with one of the machinist and he gladly help me to drill those holes precisely.
-- The things I make may be for others, but how I make them is for me.