Instructions
Print:
2 end pieces
2 armatures
3 spine pieces
6 hinge plate type a
6 hinge plate type b
1 motor plate (modify to fit your motor)
1 belt plate
1 pulley plate
1 opto plate
1 DB9 bracket
Do a lot more stuff (details available upon request) like trimming, drilling out holes, etc.
Mount either a stepper motor with belt (not shown)
Make three of these things and connect them as shown.



