[izambard]

Thank you Windell

The mystery has been solved.

I have built my own machine from scratch and the motors that I used (nema 17) had exactly the same colored leads as those shown on the EggBot web site. I had wired the motors as per the instructions shown in the Eggot assembly PDF.

I have since discovered that although my lead colors where the same the actual wiring was different.

The motors now run as smooth as silk.

I am now smiling and thank you for your attention.

[izambard]

The Egg motor begins with a few steps in one direction and the same few steps in the opposite direction. it sounds as if the motors are cogging. I do not get any sort of “sensible” response from either of the two motors. 

[izambard]

When I attempt to adjust the current I either get a continuous rotation or the same bad behavior.

[izambard]

Mach 3 does support a 4th axis and the setup is quite simple. Basically all that is required is a forth stepper to provide the rotation and a chuck to secure the work piece.

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