|Forum topic by SawTooth1953||posted 05-01-2016 08:35 PM||1221 views||0 times favorited||14 replies|
05-01-2016 08:35 PM
I use my large disc sander and stationary belt sander to “sand to the line” after rough cutting a pattern. Too often I get burn marks. I know about taking light passes, and using a light touch, and using a coarser grit first if I have a lot to reduce, make quick passes, etc. I am also aware some woods are very prone to overheating/scorching…but who wants to avoid beautiful woods just because they aren’t easy to work with?
All those tips are good but they still don’t ensure a clean outcome. All the tips are aimed at trying to get the job done with sandpaper that is moving too darned fast. I conclude that I’d like to slow down the disk sander and belt sander because I’m sick and tired of getting burns in spite of all my efforts. I cannot be the only one.
So my question is: Will I ruin my tool or ruin an add-on speed controller if I try that route? (The speed reducer is the type made for routers.)
I don’t know the type of motors in my tools. What I’m using is the Ridgid oscillating belt sander and the other is a large disc sander from Grizzly. At times I use a basic combo disc/belt sander and sometimes a HF 1” belt sander.
Does anybody have experience adding speed control to these types of benchtop tools? If not a router-type speed controller, than what type?
BTW, I don’t recall seeing this advice before: One thing I noticed on the large disc sander is the sandpaper is flying by fastest at the outside, and slower nearer the center. Of course I’m staying on the left side so the disc direction is downward, but the point is that when sanding smaller things nearer to the center, it is a lot less likely to burn. Now I wish I could find a ‘sweet spot’ on a belt sander. :)
-- Spence in Skokie, IL