Mechanical Counter — Increment by Place Value

This is a fully 3D-printed mechanical counter .Each digit can be increased independently with its own lever: ones, tens, hundreds.The design uses a simple one-way ratchet built into the digit wheels, making the mechanism compact and reliable.A zeroing knob allows you to reset the entire counter by pushing and rotating clockwise. Assembly Instructions:Insert the three detent springs into the bottom part.Click the two intermediate gears into place.Stack the digit wheels on the shaft: - Hundreds wheel first (full gear right, smooth left) - Tens wheel (full gear right, two teeth left) - Ones wheel (two teeth left) Add the zeroing knob on top of the stack.Insert the three incrementing levers into the top part.<img src="https://makerworld.bblmw.com/makerworld/model/DSM00000001532810/design/2025-06-19_489