PlotClock Makerbot friendly

thingiverse

Print this MakerBot Replicator design with 20mm layers and no support, featuring a rigid platform with a raised lip for a 53mm x 86mm cut-down dry erase board. To assemble, print one of each piece except ArmServoEnd, printing two of the latter. Cut your dry erase board to size and use long laptop screws for hinges. Plug in the Arduino, let it move servos to parking position and unplug to align arms; left arm should point towards sweep clip, right arm towards right and up. Center pen holder in sweeper clip. Remove sweeper clip if testing without pen. A reverse sketch is available for servo reversal, but requires realignment.