Saga continues...
Electronics is still not sorted out 100%, I discovered the minimum head speed is ~ 180rpm, too fast for threads..
I am sure they send me the wrong controller, it is probably suitable for US (110V AC).
I tried with variac, and yes, min speed is correct at 110VAC, but then the safety switch doesn't work.
So I asked for another one, it is on its way now...
In the meantime I had a look at mechanics.. and found one thrust bearing broken.. already replaced.
The cross slide lead screw doesn't have any bearings, 10mm shaft sits on edge of Ø9mm bore in aluminium bracket !!!!.
So I widened the bore (using step drill on the same lathe, mounted in tailstock) so I can insert the ball bearing (8x16x5mm, the only one that fits into available space). It is radial type, not ideal for the purpose but it should be way better than original "design". I will also insert the front bearing, but not right now, for this I need access to another lathe.
I can't say I am bored as SIS
.