H-M Platinum Supporter ($50)
- Dec 20, 2012
Great detail, Russ. How does it work?
I’ve been thinking about doing something like that on my PM1127. The lathe is so much quieter when the change gears are disengaged.Pretty cool set up in the video.
The Sherline power feed was just a single speed, non-reversible rotisserie motor that was way overpriced. It came with an adapter to fit the motor to the end of the lead screw and it ran really hot. In my opinion, it was a POS.
A much better option is to hook up a reversible DC variable speed gear motor to the lead screw; direct drive via an adapter between the output shaft of the motor to the end of the lead screw works fine. This gives you variable speed and feed to precisely dial in a cut on the fly and it works extremely well. Gearing is fine but why bother tying the feed to the speed for turning? A VS motor is far, far better and is easily disconnected for threading.
It might be worth a try. Your lathe has a saddle drive shaft that can be hooked up if you pull the drive gear off that shaft and hook up a DC gear motor to it. Speeds and feeds greatly affect the cut, both roughing and finishing, and my experience with being able to adjust both on the fly on my Sherline lathe has convinced me that it is a significant advantage.I’ve been thinking about doing something like that on my PM1127. The lathe is so much quieter when the change gears are disengaged.