Good Morning Markus,
thats very great stuff...
It seams you are familiar with machinekit and it's use with a BB, maybe you can tell me a few things i'm not found (or understand) an answer at machinekit HP.
First thing is about the hardware:
If i use a BB (or RPI or...), at which way the signal gos to the stepper driver? Do i have to use a BoB with Parport input and the signal comes from BB IO Pins or do i have to use a special (mesa?) card.
Which Latency rate you get with the BB?
Is it possible to use the BB also for linear drives or only for steppers? Also with 5 Axis?