What system (sandpaper, stones, grinder do you prefer for sharpening and on what tools does it work best?

I have a DMC Top and Bottom sander, Can anyone tell me anything about it?

Hello, First Post. Let me be be real honest. I bought an old edge sander without even being able to try it because it's wired 220v. Paid $70. It's heavy and would be worth that in scrap. After having two breakers rewired in my garage to 220v I tried it and it worked. While cleaning it...

Hi, I am planning on building a sander to to remove the outer layer of Tonkin bamboo and shape it down to a prescribed circular diameter (14mm maximum) and need some on advice on the type of motor I should use. I plan on having two motors (running opposite directions) with two aluminium 2" x...