Bruce, have a look at this mate:
That should help you out with the wiring of the bob, check you'v got all that right and then tonight ill give this a bit more time and work out what you need to do.
Bruce, check your wiring to this:
I've wired this exactly like the diagram. I'm going for a parallel connection so I've done.
Blue+Red to A+
Blue/White + Red/White to A-
Green+Black to B+
Green/White + Black/White to B-
But someone else told me that it should be as
Blue+Red to A-
Blue/White + Red/White to A+
Green+Black to B-
Green/White + Black/White to B+
I've tried that too and nothing. No improvement.
This is happening on all 3 axises. I cannot get the motors to rotate smoothly, they are rotating in jerks.
Wiring looks fine, and the current is set to 4.2 A so that should be ok also.
The problem that you are seeing is a typical noise or low signal problem, or possibly both.
These are the points you need to address:
1) Use Shielded cable for all signal cables
2) Shield the motor phase cables.
3) keep signal and power / phase cables apart, and if they need to cross, they should cross perpendicular.
Also check the signals from the pc, the voltage should be about 5V, it it is low the driver can miss pulses and you can get the stuttering you are seeing.Visit Us: www.zappautomation.com
I just had an email from Bruce, and it apears that his clock pulse is about 3.3V, and he is using a laptop.
This is most definately the problems, and is actually quite common when a laptop is used.
The solution would be to use either another laptop with higher voltage outputs, or a desktop PC with a parallel port.
Try this and give us your results.
Visit Us: www.zappautomation.com
OK going to try and get my hand on a 'full' PC and see how things go.
Does anyone know of a supplier for a buffered Breakout Board similar to the ones CNC4PC do but in the UK? Hopefully that will give me a full 5V signal and I can use my laptops again.
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