Hi JazzCNC

Thanks for the welcome and your comments. Fair point to most.

I certainly agree that it's a learning curve and a steep one at times but it did convince me that the effort is worth while. I'm still going & haven't given up yet.

I suppose the biggest problem I had was that using recycled stepper motors of unspecified characteristics. That threw a huge spanner into the works. Trying to get the settings in some sort of working fashion by trial & error caused many headaches with the driver box from China. Lots of unknowns all contributing to the confusion.

Understanding that NEMA17 motors all have different electrical characteristics and that the NEMA17 is the mechanical specification was a real light bulb moment

I did follow most of the plans for the MyDIYCNC machine but again realising the limits of any design is most important and not expecting too much (which I did). I believe there are ways I could improve on the drive system in particular which would make mine into a usable machine but that one is resting for now at least. I was working on an early design and they have implemented many 'new and improved features' overcoming some of the problems I had.

Onward & upward.

Regards,
Barry