daleyd
Member
- Messages
- 10,059
- Location
- Wrexham, North Wales
Got a 3 phase 1/4 Hp motor for my drill for 8 quid off eBay. I've found that when countersinking even the lowest speed is still too fast and chatters and I have a few inverters kicking around, so why not?
It's 400v only so it's either try and find the star point and reconfigure it for delta winding or use it as is and set the inverter up for 240volts at 29hz (ish). It will still run to 50hz (or more) but you get reduced torque above 29 hz, which I could probably live with. I've run it on the bench like this and it runs fine, and the bearings are nice and quiet so this may be the preferred option at the moment.