- Joined
- Nov 16, 2011
- Messages
- 275
I have an older Dumore tool post grinder (model no: 11-011) I picked up from ebay a few years back. I rarely use this because it spins the "wrong way". My lathe turns CCW (looking at it from the tailstock) and has a threaded spindle so I never bothered to make it reversible.
The TPG, which spins CW (looking at it from the tailstock), has been running on 110VAC since I acquired it, but today I noticed the motor plate indicated it can run on 90V DC as well as AC. So, as a test, I connected the TPG to an MC-60 "Treadmill" motor speed controller. This worked well, as I could easily control the motor's speed from almost zero to full speed. But when I swapped the two motor leads back and forth a couple time and the TPG always spun the same direction. Bummer!:banghead:
I then opened the motor and tried to swap the leads going to the brushes, but the cables were too short so I put everything back together. Any advise?
The TPG, which spins CW (looking at it from the tailstock), has been running on 110VAC since I acquired it, but today I noticed the motor plate indicated it can run on 90V DC as well as AC. So, as a test, I connected the TPG to an MC-60 "Treadmill" motor speed controller. This worked well, as I could easily control the motor's speed from almost zero to full speed. But when I swapped the two motor leads back and forth a couple time and the TPG always spun the same direction. Bummer!:banghead:
I then opened the motor and tried to swap the leads going to the brushes, but the cables were too short so I put everything back together. Any advise?