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I imagine anything that transfers vibration from the motor to the sandpaper would work as a tip. I used wood dowel because I could cut a chunk off, drill a hole, shape the tip with a sander and be...

Since I have done two successful restores with my sanding block I figured it was time to revisit this thread and spend some time updating my info and changes on this device.

First off, I just...

how to answer those questions...

I could not find and oscillating sander that I could put a tip on for the type of work I was doing. Sanding into a hollow grind means your sanding tip needs to be...

For those of you keeping up on this thread/experiment, here is the first blade I restored using this vibrating sanding block...
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I got some fun foam from Michael's to add to the tip (between wood and sandpaper) to get better contact with the sand paper, seems to have worked. I've used this sander on a blade and I think I used...

I used a small piece of aluminum to test the sander. I know this is softer than steel and may not give as accurate results, I was just using what I had around.

For this entire test when turning...

So I decided to attempt an experiment with a sanding device I put together today. The following is how I constructed it and the results of the test. Keep in mind this test is very basic and not...