Make sure you place the arms flat on the bed before preparing to print. Also remove any auto-generated supports in the arm tubes. The antenna tubes are impossible to clean out, and the motor wire tubes are a pain. it prints those fine without supports.
Included is the .gcode for all components in PLA at 33% infill (17hr 45min print! Maybe better to print one at a time). Also ABS at 80% infill.
Will fit up to 23XX motor.