So I got my steppers from automationdirect.com. about 19 bucks a peice. They are NEMA 17s and have about 83 ozin of torque. they mount up OK with some screw that I bought at Ace Hardware, but I forgot the pitch of the screws. The steppers are nothing special 1.8 degree four wire, but so far they seem to work well with my xyoltex driver. If you mico step your drive, you can get a higher resolution, but then you will probably want to get rid of you gear reduction. Oh, I also had to cut the arbor of the stepper to put my drive gear on it. I hope this helps. Oh by the way, I did not use the original 8 wire steppers were impossible to get the spec sheet on so that is why I went with the four wire from automationdirect.com.
Back to my lead screw issue... I pulled off the X table and the ways seem to be in good shap and slide easy when the lead screw is out. When I thread the lead nut on the lead screw it feels as if the nut is a lock nut, it is really stiff, so I think that I will make an antiback lash set up if I can find a nut that fits. By the way AC, I think my lead screw is the same as yours a 12mm 2.5. The distance between peak to peak is about .100, which translates into 2.5, assuming my math is right. Do you know where I can find a lead nut that will fit? Thanks
On the electronics issue... I will deal with the limit switches after I get my lead nuts figured out, but thanks for the info. I think I did waste my money on the breakout board, I hate wasting money!!! But who knows, it might be useful later on.
Well I am going to try to find a lead nut, maybe dumpstercnc.com??
Thank you in advance
dave  |