I recently bought a new Smoothie. Used an existing config, but it resulted in motion (Cartesian 'bot) that was exactly half what it should be. It would seem this new board uses 1/32 microstepping, whereas the old used 1/16.
And indeed, the documentation seems split. The stepper motor page (forum[dot]smoothieware[dot]org/stepper-motors) says 1/16, but the Smoothieboard page (smoothieware[dot]org/smoothieboard) says 1/32.
Obviously, I can change the steps_per_mm in the config, but:
1. I would like to have one config that works across all boards, if possible. Is there a standard? Or a way to set this via the config?
2. I'm also having trouble getting the 'bot to run at the same feed rates as before, presumably because there is less torque at higher microstepping settings? Tried upping the motor current, but they're only rated for 2A, and it was already up at 1.6A. Is it safe to turn it up to 3.2A to get the equivalent torque?