Hi all, how 'bout a li'l info?

[dmerc]

I just got a HF 7x10 minilathe, and wondering if there is a way to raise the level at which the dang thing "kicks off"?

Especially, for coarse threading, tho' it even stalls pretty easy while turning in auto feed too. I can't believe the small amount of pressure on the wheel, that can stall this out.

I think I have the major tuning done, but any other info on problem areas would be welcomed.

My background: I ran Acme-Gridley screw machines, Davenports, Warner-Swasey hand screws, and Mazak CNC's for many years, before experiencing a plant closure 5 years ago. I rarely "need" a lathe, but I miss all the flying metal chips!

[LeeWay]

This is a very common issue with these little lathes. You will have to either loosen up some of your parts, take lighter cuts, or upgrade the motor controller. I think the first two options will get you fast results.
I did convert a 7/12 to cnc, but then I had to build another from scratch to get the results I wanted.

It is a much better machine if you can use it in full manual mode without threading though.
I did get mine to cut decent threads, but very light cuts were needed.
Also a very watchful eye and hand coordination on that stop switch.
Best to hit the estop at the end of the thread rather than trying to use the pot.

[dmerc]

Thanks Leeway,

I actually get a pretty good thread, it's just SO time consuming. I tried using a tap once, you can guess how that worked out....instantly stalled.

Oh well, half the fun is finding what it can, and can't do.

[ataxy]

the problem and one of the main reason for converting a small lathe to cnc is that when you engage the feed part of the motor power goes for that instead of just driving the spindle, hence forcing you to take really light cut

[Richard23]

Take a look at Gunhead's CNC lathe. Might be easier to get that instead.
http://www.gunhead.com/GMW/index.html