Thread: New 72x2 Grinder WIP in Aus.

Originally Posted by bluesman7

The grinder I made is not VFD. My belt speeds are approximately 425, 850, 1700, surface feet per minute. I started doing finish work at 425, but now I rarely go that slow. I'm glad to have the option though. 1700 is adequate for roughing IMO. I could definitely go faster for roughing, but I doubt I'll ever change anything to go faster. All I would need is a bigger drive wheel.

Well, times change. As my grinding skills have improved I don't see myself ever using that lowest speed and I decided that a higher roughing speed would be better, so I have a larger drive wheel coming in today's mail. The small drive wheel will live in the box with my contact wheels so I can just change back if I ever want that slow speed for anything.

New speeds will be approximately 850, 1700, and 3400 SFPM