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PRECISE DISC JIG

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Project by kiefer posted 12-02-2013 10:52 PM 2685 views 28 times favorited 22 comments Add to Favorites Watch

Have made this little jig some time ago but never posted it but today I needed to make some little discs to fit into a half pipe but did not want a hole in them and I took some pictures along the way .

I made them with this little jig that is clamped to my 12” disc sander ,I simply made a plywood disc on the band saw and drilled a 1/4” centre hole so it would fit over the dowel on the sliding part of the jig .
The jig has a sliding stop that can be set anywhere along the sliding part of the jig and is locked in place with a bolt from the bottom .
A second bolt through the block from the end acts as a fine adjustment and lets me sand the disc to a very tight fit by sneaking up to the diameter .
The sliding part of the jig lets me sand gradually toward the rough finish size by moving it toward the sander and rotating at the same time and with the fine adjustment set to oversize I can slowly adjust the bolt and sneak up at the final size .
The thin disks that I needed are rough cut on the band saw and fastened to the plywood disc with two sided tape and sanded on the disc sander giving me the exact size of disc with no centre hole . This allows me to make any number of disks the exact same size .

-- Kiefer 松





22 comments so far

View wiswood2's profile

wiswood2

1128 posts in 2441 days


#1 posted 12-02-2013 11:06 PM

Very nice jig, I made one like only I use mine so the disc can be made to all the same size for my hundreds of wheels I have to make.
Chuck

-- Chuck, wiswood2 www.wisconsinwoodchuck.com

View kiefer's profile

kiefer

3357 posts in 1412 days


#2 posted 12-02-2013 11:17 PM

This is the Idea here ,I sand the plywood disk to the final size and then the following disks are all the same size without having to adjust every time .
If you have some pics of yours I would appreciate you posting them here .

-- Kiefer 松

View HuckD's profile

HuckD

206 posts in 459 days


#3 posted 12-02-2013 11:47 PM

I like it. It’s now favorited and on my to-do list.

-- Time is what keeps everything from happening all at once.

View jaykaypur's profile

jaykaypur

3456 posts in 1153 days


#4 posted 12-02-2013 11:57 PM

Nice tool for the shop and another one I DONT have!!

-- Use it up, Wear it out --------------- Make it do, Or do without!

View shipwright's profile

shipwright

5297 posts in 1543 days


#5 posted 12-03-2013 12:09 AM

Clever!

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fiberglass trees. http://prmdesigns.com/

View HillbillyShooter's profile

HillbillyShooter

4864 posts in 1037 days


#6 posted 12-03-2013 12:27 AM

Nice jig—I particularly like your fine adjustment feature that allows you to sneak up on an exact size/fit. This feature is one I can use in other jigs, ergo a favorite.

-- John C. -- "Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth." George Washington

View exelectrician's profile

exelectrician

1743 posts in 1172 days


#7 posted 12-03-2013 12:34 AM

Good thinking! I really like the super accuracy part.

-- Love thy neighbour as thyself

View a1Jim's profile

a1Jim

112818 posts in 2322 days


#8 posted 12-03-2013 12:46 AM

Coolsville nice work, a very good Idea.

-- http://artisticwoodstudio.com Custom furniture

View Jim Jakosh's profile

Jim Jakosh

12327 posts in 1850 days


#9 posted 12-03-2013 01:13 AM

Very slick, Kiefer. I love it. Very smart idea!!!!!!!!!!!!!!!!!!!!!!

-- Jim Jakosh.....Practical Wood Products...........Learn something new every day!! Variety is the Spice of Life!!

View woodshaver's profile

woodshaver

2876 posts in 2098 days


#10 posted 12-03-2013 01:14 AM

I like this idea a lot! Very clever indeed! Thanks for sharing this Kiefer!

-- Tony C St Augustine FL, My high school shop teacher said "You can do it"... Now I can't stop!

View DeltaDaddy's profile

DeltaDaddy

52 posts in 398 days


#11 posted 12-03-2013 01:30 AM

Great Jig!

-- Take it apart to see how it works

View hoss12992's profile

hoss12992

2957 posts in 638 days


#12 posted 12-03-2013 03:59 AM

This is really cool and def needed in my shop. Love the fine adjustment that you built into it. Great job buddy

-- The Old Rednek Workshop https://www.facebook.com/theoldrednekworkshoptn

View Blackie_'s profile

Blackie_

3638 posts in 1257 days


#13 posted 12-03-2013 04:08 AM

Nice Jig,

-- Randy - If I'm not on LJ's then I'm making Saw Dust. Please feel free to visit my store location at http://www.facebook.com/randy.blackstock.custom.wood.designs

View CalgaryGeoff's profile

CalgaryGeoff

937 posts in 1227 days


#14 posted 12-03-2013 05:23 AM

Now that’s a neat jig to make circles with out center holes. Great idea and build.

I would recommend that next time you are at a tool store you purchase a sand paper cleaning block and give it a try if you have not done so yet. I use them on anything that sands from a drum sander to random orbital. They are worth the cost under $10 and really work, they keep your paper clean and lasts longer plus sands better.

-- If you believe you can or can not do a thing, you are correct.

View Jim Rowe's profile

Jim Rowe

611 posts in 1057 days


#15 posted 12-03-2013 09:22 AM

Neat idea when precision is needed.
If you have an old tube of silicone sealant that has “gone off” before you have been able to use it, i.e.it has solidified, just peel off the wrapping that formed the tube and you have a belt sander cleaner for free.
Jim

-- It always looks better when it's finished!

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