Simple Maker's Edition (1405) with Rev F Printrboard
Getting Started Guide: http://printrbot.com/project/simple-makers/
Firmware for Rev F4 Printrboard: https://github.com/Printrbot/Marlin/releases/tag/RevF-Version-1
Assembly Instructions: http://help.printrbot.com/Guide/Simple+Maker%27s+Edition+%281405%29+with+Rev+F+Printrboard/157
A note about compatibility with prior board revs:
As compared to prior (rev B-D Printrboards, rev F4/F5 has several pin assignment changes, and replaces the potentiometer-based motor driver trimming with programmable tuning via an onboard DAC. For that reason, this version WILL NOT WORK on Printrboards prior to version F4.
The onboard DAC / motor tuning is accomplished using the new M907 command (sets in %, so as an example M907 X30 Y30 Z30 E30 sets all motors to 30% of their full scale adjustment range. M909 can be used to read the present values, and reports both in percentage and DAC counts.
NOTE: The DAC includes separate EEPROM used to store motor trim values, and if you change the values, you must use M910 to save the new values to this location. This is the counterpart to M500 which saves the OTHER configurable values to that other EEPROM. M500 does NOT save motor trim values