Here's a page from my notebook on wiring up "Jumper Cables" for various typical stepper motor (NEMA 17 dual winding 4 connection type) based focus rails. For example: This allows the Stackshot Controller to control a Wemacro rail, or MJKZZ rail, or modified THK KR20 rail. Or the Wemacro Controller to control a MJKZZ rail or modified THK KR20 rail.
You simply place the "Jumper Cable" between the Controller and focus rail stepper motor (NEMA 17 dual winding type). Connectors can be ordered from William at Wemacro, Peter at MJKZZ or Paul at Cognisys (Stackshot).
Edit: I've added an image of a Wemacro male to MJKZZ female (NEMA 17) motor (bottom), Stackshot male to MJKZZ female (NEMA 17) motor (top) and Wemacro female to Stackshot male (right).
Cheers,
Mike
Stepper Motor Cables
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Stepper Motor Cables
Last edited by mawyatt on Sun Sep 17, 2017 12:06 pm, edited 2 times in total.
You'll need to get the connectors from William at WeMacro and Paul at Cognisys (Stackshot), then any local electronic/computer repair shop should be able to make the cable for you with the information described above. I don't have any more of the connectors, they were used to make the cables shown.
Best,
Best,
Research is like a treasure hunt, you don't know where to look or what you'll find!
~Mike
~Mike
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Useful info Mike.
I should add that I occasionally need to reverse the direction on a stepper, for instance if I flip the rail around (like I did with the modified WeMacro stand) or to ensure the "up" arrow on the keyboard makes a vertical stand go "up". To do this, the wire order is simply reversed. If the colors are Bl/G/R/Bk, re-ordering them Bk/R/G/Bl will turn the motor around. Of course it should only be reversed on one end...
I should add that I occasionally need to reverse the direction on a stepper, for instance if I flip the rail around (like I did with the modified WeMacro stand) or to ensure the "up" arrow on the keyboard makes a vertical stand go "up". To do this, the wire order is simply reversed. If the colors are Bl/G/R/Bk, re-ordering them Bk/R/G/Bl will turn the motor around. Of course it should only be reversed on one end...
Ray,
I think you only need to reverse one set (2) of wires to either one of the stepper coils (dont think it matters which coil). I recall doing this long ago to change the rail direction, but can't remember the details.
Best,
I think you only need to reverse one set (2) of wires to either one of the stepper coils (dont think it matters which coil). I recall doing this long ago to change the rail direction, but can't remember the details.
Best,
Research is like a treasure hunt, you don't know where to look or what you'll find!
~Mike
~Mike
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- Posts: 3417
- Joined: Sat Nov 20, 2010 10:40 am
- Location: Santa Clara, CA, USA
- Contact:
I tried that on other's advice but it didn't work. Had to swap both the order of the individual wires AND the phases.mawyatt wrote:Ray,
I think you only need to reverse one set (2) of wires to either one of the stepper coils (dont think it matters which coil). I recall doing this long ago to change the rail direction, but can't remember the details.
Best,