Look what the postman brought me the other day: nice solid stepper motors with Tr 8 × 2 leadscrews. Perfect for the Z axis of the eShapeOko or Shapeoko. The motors seem good and the leadscrews are very, very nice. Tr 8 × 2 is just right for this application, unlike the four-start Tr 8 × 8(P2) available from RobotDigg, which does not have enough mechanical advantage and is too easy to backdrive.
Too bad the acetal (Delrin) lead nut on these is crap. Oh well. I really don’t have time to search for good nuts, so this upgrade will have to wait.
While I was writing this, the UPS guy came and collected the kits I had finished packing last night (except one already dropped off with Hermes, and one waiting for ParcelForce).
So, when will you have these available? http://amberspyglass.co.uk/store/51mm-nema23-stepper-motor-400step-per-rev.html
(I can wait for them until you send all the kits. I’d just like to know, so don’t get more stressed.)
Frankly, no idea. I should have heard from the supplier just about now. In fact, let me send an email and ask.
They’re on their way. They should arrive on the first of October.