Tweakie, do I sense a hint of sarcasm in that post?
I'm not sure if there will a next installment as such, as the only things I've got planned to do now is cut a whole for the scale connectos, and put the door on the cabinet.
Dickeybird, the KFlop is a very powerful and highly configurable option.
Provided you can input a suitable signal, you can close the loop with pretty much anything a KFlop output is capable of driving.
Some combinations will require some custom C code, however most common motion control related inputs are handled easily through the standard options. I think the only main requirement for a suitable input, is it has to be quadrature.
Also, it's sampling rate is 180uS on all inputs, so even standard inputs can be used for some pretty time critical stuff.