|Project by DonH||posted 09-12-2010 10:33 PM||9177 views||21 times favorited||15 comments|
This drill press driven thickness sander fits on top of my existing custom drill press table. I developed this thing to sand quilted makore as the stuff is very hard on blades and the dust is toxic. I needed a non blade solution and I had to make sure dust was collected. This rig did the job.
The table and fence are two layers of 3/4 inch MDF with a white hardboard surface that meets the wood. Both are surrounded by maple. The fence pivots on a 3/4 inch brass rod that lets into a bronze bushing in the table. The sanding drum is turned from layers of MDF, has a loop layer and hook sandpaper is wrapped around it. The drum is bonded to a steel rod with a Morse taper at the top to mount in the drill press instead of the chuck. At the bottom is a live bearing for the bottom end of the steel rod to sit on (it has a dimple). Once the drum is chucked up the dust shroud is then mounted and connected to the dust collection system.
To use the device, I place the board to be sanded between the drum and the fence, snug the fence up and clam it as shown in the last photo. I then run the wood through once, flip it end for end and run it through again. I reverse sides and repeat the process. The press is then stopped and the process started over from the beginning and repeated as necessary. The result is a piece that is within 4 to 6 mills overall thickness variation and no dust at all.
-- DonH Orleans Ontario