motor shaft ?

[grahamshere]

Can a stepper motor shaft be replaced, mine some how broke off.is it hard too do if can be done? thanks. Graham

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[ger21]

No, but it shouldn't have broken. I'd contact whoever you got it from and see if they'll replace it.

[grahamshere]

thanks Ger, not good news, I,m sure the warranty is over. Dam it's upsetting, was running so good. oh well thanks.

[Al_The_Man]

Were you running with a solid coupling?
If so, a slight misalignment will cause it.
Al.

[grahamshere]

Ya made them my self, similar to dumpster's couplings, guess they aren't very good, say Al, who carries steppers in Canada, BC preferably. do you Know? Graham

[Al_The_Man]

I don't know of many that carry anything in stock, but Electromate (Ont) have always been in the servo/stepper field.
Al.

[MrWild]

I thought the shafts were just pressed into the core. Have been looking at a 34 frame motor and wondering about pressing it back so I can install a handwheel to the back side. The motor side is pretty long. As I got several for free, I'm thinkng about sacrificing one to a hydraulic press.

[grahamshere]

I found novacon which is in Ont.There a bit cheaper. Any way I was wondering if I reversed the motor, has dual shaft, and just reversed the set up in mach 3 would that work until I get a new motor? it,ll probable be 2 weeks before I get one from any were I'm guessing, cant wait that long. Graham

[Al_The_Man]

The reverse shaft should work, either motor connections or Mach set up to reverse.
In the mean time I would look at Oldham coupling or Stainless Helical.
Al.

[grahamshere]

Thanks Al, I,ll give it a shot and see about couplings, just a pain ordering on the net, and no one around here sell's them, I don't know whats up with Canada, no manufacturing here at all seems. what in mach 3 would I need to change?

[Al_The_Man]

Helical you can get from R.G. Shelley Ont.
Al.

[Foxman]

Should just need to change Ports & Pins -> Motor Output -> Dir LowActive setting for the axis in question.

[ger21]

Better way is Homing/Limits, and check "Reverse".

[grahamshere]

Thanks for all your help guys, AL check out the supplier you suggested, I need to get some longer nuts and bolts tomorrow. Graham

[Al_The_Man]

Here is the product they supply.
http://www.heli-cal.com/cm/Home.html
Al.

[grahamshere]

Thanks Al, which do you recommend ,#37? There's no price list, I found some on another site that were $40.00 each, hope there not that much. Graham

[Foxman]

Better way is Homing/Limits, and check "Reverse".

I thought that was just to change the direction the machine homes in. ???

[ger21]

I thought that was just to change the direction the machine homes in. ???

No. "Home Negative" changes the homing direction. "Reversed" changes the actual travel direction.

[grahamshere]

well I think I found out what happen, let me tell ya I'm so po ed at myself. I was getting chatter when the router was heading in one direction but not the other, so any way I tightened z axis that is attached to the y and guess I did it to much, The bearings made a groove deep in to the rails, almost through. I didn't relies it was so tight, I'm surprised the bearings are not toast but there ok. had to replace the y rails,almost done, I'll see what else I can screw up. Graham