Help with wiring on a stepper please (Very No0b question dont laugh)

So I have the yellow wired stepper Pic A Below

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and I'm making the plugs for this board and its wired with the black one.. Pic B below

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do I wire the plug to yellow wire diagram ? I know it sounds like a n00b question but I thought its better to ask than set fire to something lol

:)

As long as the correct coil pairs are matched, the only difference it'll make is what direction the motor runs.

Okay, I've spent 2 minutes on the Makerbase website and given up - have you got instructions for the board, and in particular which are the A+/A- and B+/B- terminals on those 4 way plugs?

If so - it's easy - work out the coil pairs on the stepper? If you have an Ohm meter (DMM etc) then measure which pair of leads has ~1-3 Ohms resistance between them - of the four wires, there are two pairs each with that low resistance. Then you need to wire ANY pair to the corresponding A+/A- pins (doesn't matter which way around). Wire the OTHER pair to the B+/B- pins - again, doesn't matter which way around. There's a 50/50 chance that the motor will spin in the wrong direction - then swap the pins on ONE pair only (so swap A+/A-, for example).

If you don't have a meter... buy one. Or short two wires on the motor together (with nothing else connected, of course!) - if you find two that makes it more difficult to rotate the motor by hand - you've found a pair. Confirm by shorting the other pair with a similar increase in resistance to rotation.

If it makes you feel better - you're not going to burn the house down. The one thing you must do, however, is avoid removing the stepper wiring when power is applied - it's a good way to destroy the drivers (read up on collapsing EM fields)

Its the red an black wire that always throws me, I keep thinking its live/earth but of course its just polls. It worked wired as in the diagram.
Thanks

Quote:

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Originally Posted by Fivetide

Its the red an black wire that always throws me, I keep thinking its live/earth but of course its just polls. It worked wired as in the diagram.
Thanks

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Remember electricity does not care about the colour. In Spain the black wire is the live phase, where as here it used to be red now it it brown :apthy:

I pinned one of them up with single puponts in case it it didn't work but worked fine first time

Quote:

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Originally Posted by Clive S

Remember electricity does not care about the colour. In Spain the black wire is the live phase, where as here it used to be red now it it brown :apthy:

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In the USA they use black for positive and white for negative. You find a lot of imported 12V stuff for cars and caravans in Australia like that which throws any ex-pom who assumes that black is still negative and only the positive colour has changed!