- Joined
- Dec 27, 2019
- Messages
- 33
I am contemplating building a 12" disc sander. I have a 1hp leeson dc motor that operates at 3000 rpms at 120v. I run it at 90v and it is still around 2800 rpms and can turn it down to a crawl. I plan to mount this below the sander with a belt drive gear reduction. The disc sanders I see are around 1700-2000 rpms. I am wondering if 2000 rpms is what I should shoot for or if a little more would be better. I am not sure I will have the horsepower for more or not anyway. This will be for general finishing like what most guys use 9" sanders for. Anyone have any insight on this?