AFAIK the Makerbot-boards are programmed for use with ReplicatorG and DC-motor, so for RepRap-Host and stepper you have to change the firmware on the motherboard and the extruder ...
Are the boards from Makerbot or another manufacturer?
For some of the cloned extruder-boards (not red in colour) you have to solder a short connection on two jumper-pads located left of the oszillator to connect GND with AGND, or it won't work properly ...
Viktor
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Aufruf zum Projekt "Müll-freie Meere" - [
reprap.org] -- Deutsche Facebook-Gruppe - [
www.facebook.com]
Call for the project "garbage-free seas" - [
reprap.org]