the old grind
Elite Member
- Joined
- Jul 21, 2012
- Messages
- 4,412
- Location
- Mid-Michigan
- Tractor
- NH T-1520 HST, NH TC33DA HST, Case DX26 HST, .Terramite T5C, . NH L785
Not what the OP was asking for but as some may have mentioned an electric variable speed on the drill press is very nice. I have one with a rheostat and DC motor that I bought from someone . Very usefull when drilling 1/2" holes or larger holes. Also has reverse. Search around as there are many articles about how to install a variable speed treadmill motor on a drill press.
I use a 50a bridge rectifier ($5) and a HFT router speed control ($20) back & forth between two DC treadmill motors on re-powered shop machines. No cpacitor is used on the DC output as it would defeat the PWM operation that gives good torque at low RPM/volts vs say a rheostat, carbon pile, or autotransformer w/rectifier.