Suanpan Abacus

A basic suanpan abacus made as part of a history of computing project I'm working on.
I should have made the beads bigger and the overall height shorter, but I think it printed good enough to play around with an abacus for an afternoon.

**Parts to print:**

- 1 x frame-middle.stl
- 2 x frame-right.stl
- 2 x frame-top.stl
- 9 x rod-1.stl
- 63 x bead-1-1.stl

**Hardware required:**

- 4 M3 nuts (captive nut inserts)
- 4 M3x12 low profile hex bolts