Help with settings!

[JAZZCNC]

Ok first bruces(motoxy) problem was micro stepping and resonance not ballnut or alignment.

Your problem seems and sounds more like alignment. I think your just going to have to keep tweaking each side untill you get the alignment correct.
Not keen on the over size holes has the screw isn't locked and can move around.?

Sorry can't help any more than that.!!

[Tenson]

Hi Jazz,

The screw is of course fixed when tensioned up. I'll play some more tomorrow, maybe adjust the ballnut mount rather than the ballscrew and try different microstepping. I do wish I didn't bother with a rotating ballnut on the X axis and just had them on the main gantry. On the positive side, the main gantry despite being about 50Kg will do over 10,000 mm/min :)

[Jonathan]

It seems unlikely to be the problem, but I would check that the ballnut is concentric to the screw. When the ballnut rotates does the ballscrew move up and down a bit? If so you should tweak it until it doesn't.
Good to hear the X-axis is working well, you've got 10m/min on a RM1610 ballscrew - can you remind me what length the screw is please, 1.5m?

I do wish I didn't bother with a rotating ballnut on the X axis and just had them on the main gantry.

So do I...