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Lazy Susan Round Disk Sanding Jig

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Project by Kevin May posted 03-09-2012 02:09 AM 2918 views 7 times favorited 5 comments Add to Favorites Watch

I jumped headfirst into making a few cutting boards and landing on my face. I didn’t think through the project project before I started, so I created my own problems. I glued up some sassafras and purple heart panels, then rough cut the disk on the band saw. My nest step was to true up the periphery of the disk. I was thinking I could use a beam jig with my router. While I was successful with this jig on the larger, top disk, it was a real pain because I had already cut the disk with the band saw and had nothing to hold the panel with outside the cutting path. In a first attempt with another jig, I created an unsafe disk spinning rig, using the router as a motor. Glad I was wearing my PPE when the disk flew apart. I needed a solution.

What I came up with is what is in the photos. Using my 5” disk sander, I created a pivot for the disk. I place a 3/8” diameter blind hole in the hidden side of the disk. For the pivot, I used one of the lazy susan bearings, mounting a support plate with a 3/8” diameter dowel, centered in the disk, protruding 3/8”. This allows the disk to be sanded to be rotated while contacting the sanding disk. The pivot is mounted on a 3/4” mdf plate. The plate includes a 2×4 with a hole in which the quick clamp is used with a beam and another lazy susan bearing to hold the disk being sanding down on the pivot.

The sander is clamped to the work bench. The pivot plate is moved until the disk contacts the sanding disk. I manually rotated the work piece. After one rotation, I find the low spot on the board and move the rotating disk to the sander again. I am able to ‘turn’ the disk into a perfect circle in about 10 minutes, with a very smooth finish.

-- Kevin May "Making wood useful and fun!" www.kevinmaywoodworks.com





5 comments so far

View NormG's profile

NormG

4254 posts in 1690 days


#1 posted 03-09-2012 03:15 AM

Very creative idea

-- Norman

View Diggerjacks's profile

Diggerjacks

1765 posts in 1825 days


#2 posted 03-09-2012 08:13 AM

Hello Kevin

A nice idea

Thanks for sharing

-- Diggerjack-France ---The only limit is the limit of the mind and the mind has no limit

View Ken90712's profile

Ken90712

15080 posts in 1875 days


#3 posted 03-09-2012 08:47 AM

Very cleaver way to do this, thx for sharing!

-- Ken, "Everyday above ground is a good day!"

View degoose's profile

degoose

7038 posts in 2040 days


#4 posted 03-09-2012 10:05 AM

Nice looking piece of apparatus and nice looking designs for the Lazy Susans…

-- Drink twice... and don't bother to cut... @ lazylarrywoodworks.com.au For lovers of all things timber...

View SawTooth1953's profile

SawTooth1953

279 posts in 1992 days


#5 posted 06-11-2012 01:14 PM

Creative. FYI, you can make a circle-sanding jig for your RIGID oscillating sander… there is a lot more table surface to work with and more sanding surface, too.

I got an idea from a magazine tip column and modified it for my RIGID sander… it has dual capability for circle-sanding and thicknessing. I’ll post the project when I get a chance. Meanwhile, here is an LJ project for a circle-sander that is easily adapted to the RIGID: http://lumberjocks.com/projects/61780

Spence

-- Spence in Skokie, IL

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