Simple geared counter (2-digit)?

[bwente]

I wanted to make one too. I found out the first step was to make a geneva gear.

Geneva Mechanism

There a few discussions on the forum about making these. I made one and added a motor. [A lasercut Geneva Mechanism from a Cuttle file] Designed in Cuttle, cut on Glowforge.

There are few designs for 3d printing. Auto Counter with rollover by FidelioScorpio - Thingiverse