You may be able to adjust the pots on the speed control board to improve low end torque. There's a generic procedure here:
http://www.mini-lathe.com/Mini_lathe/Modifications/modifications.htm#slow_speed
You should be able to find a data sheet for the board that's in your machine once you open it up & can see the manufacturer's name & model number on the board.
Still, for really controllable high torque low speed work, a hand crank can't be beat!
Roy
--- In 7x10minilathe@yahoogroups.com, "tom_rittenhouse" <tom@...> wrote:
>
> I just got one of these (http://www.amazon.com/gp/product/B002YPDQHI/ref=oh_o00_s00_i01_details)dial indicator sets and a laser tach in the mail.
>
> The tach seems to work OK. Although it shows that the lathe does not change speed much at the beginning and end of the the dial travel. Also, while I can slow the lathe down below about 70rpm it pretty much stalls at those speeds. So much for the specs. At first I thought I was going to have to put some black tape around the chuck, but the reflective tape seems to work OK without doing that. Not a bad deal for $17. Of course, I will soon have an idea of how fast the lathe is turning at what dial settings without the tach, and it will become another piece of junk in the drawer; which is why I did not want to spend much on it.
>
> The DI/DTI set came with the parts all bouncing around loose in the case, and no instructions. While I have has DI's before this is the first time I have had a DTI. The smaller mount for the DTI took a bit of figuring, until I realized I needed to use a piece from the the bigger mount with it.
>
> My next decision will have to be whether I want a digital protractor or a 4 piece combination square. I have about 4 squares laying about, but do not have a decent protractor. &, nope, I can not afford a Starrett.
>
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