Jet 1236 Low Speed Modification (2005)
I've heard of people adding another low speed detent to the Jet 1236 lathe (and/or the HF clone), but I never got around to doing it on mine. I recently dug out a tachometer to measure the exact speeds of each of the 6 factory speed settings, and much to my surprise the lowest factory speed is ~700 rpm.
So I took the drive head apart and figured out how to add another low speed detent. There was always some extra play below the lowest detent, so drilling another hole was a piece of cake.
I've now got a 7th speed setting that gets me down to a little under 500 rpm. Neat mod that will be useful for roughing bowl blanks and other things.
So if you haven't already done this, drill yourself a new low speed hole. It's easy, and here's how:
First, make sure you're able to move the handle to a lower speed than the slowest available. It won't lock in, but you should be able to slow it down. We'll drill a new hole to provide a lock/detent.
Remove the 2 screws that attach the speed handle assembly:
© Copyright 2006 Chris Billman