What i am doing wrong with mach3?? trying to config machine.

[JAZZCNC]

I've just a quick ebay search, and something like this kit would get you up and running, provided you can figure out the existing power supply, and get it working for the steppers - CNC Router DIY Kit 5 Axis Breakout Board +3x M542 Stepper Motor Driver 1.0A-4.5A | eBay

If you scroll down the page, it has some pretty simple but clear wiring diagrams, which should help clarify what's needed, and how they connect.

He's going to need motors has well because these are 5 wire Unipolar motors and using them with Bipolar drives is not recommended. At best you get erratic results with high potential for missed steps and at worst will damage the drive.?

Also I'd change the power supply to something with more volts better matched to the drives like 44-46v because looking at those pics I see 26V now chances are this is AC before rectification so could be 36Vdc.? Which is still 10V less than ideal for these drives and modern motors. 10V makes a big enough difference to be worth changing IME.

[John S]

He's going to need motors has well because these are 5 wire Unipolar motors and using them with Bipolar drives is not recommended. At best you get erratic results with high potential for missed steps and at worst will damage the drive.?

Sure ?
The driver is only 4 wire.

http://www.mycncuk.com/forums/attach...e-imag0890.jpg

[JAZZCNC]

Sure ?
The driver is only 4 wire.

Not 100% sure. . . But I see 5 wires out the motors and where the connectors enter the box there's Green wire with red rings with what looks like a resistor that goes to the daughter board next to the drives. I suspect this is common and the 4 wires on the drive are A+ B+ A- B- like this.



But I could be wrong.!!!

[JAZZCNC]

Erm...After checking the parker sd3 specs it says bipolar drive so MC could be right and it's shielding or something. . . . More investigating needed me thinks.

Think best thing you could do scnc is take john up on his offer and throw it in car and let him check it out.! If it's been working then chances are it will be a quick fix or just a setup issue.
At the very least he'll be able to check out what stuff is and where it goes.!