Sieg SX2 Plus build

[russell]

Three weeks since my last update. I don't know where the time goes (well, yes I do - gardening, making new wheels for sliding patio doors, other projects).

Still, the M12 x 2 trapezoidal tap arrived from China last week so I was able to make a couple of anti-backlash acetal nuts for the leadscrews based loosely on the Brian Pitts design:

Y leadscrew anti backlash nut.

X leadscrew nut.
and finally (for now):

Base assembly (almost) complete. Just have to fit some mounting brackets for the home/limit switches.

I can now adjust it to give me 0.5 thou backlash on the Y axis without it getting unduly stiff. However, the X axis gets stiff when the backlash is reduced below 2 thou so I have some investigation to do there.

Now to start on the Z axis. I've done some layout drawings and find it is just possible to get a 16 mm ballscrew to fit behind the motor on top of the head so that's the way I'll go. The ballnut has to be mounted rather high up though.

So - back to the workshop.

Russell.