From the Loftsmith Workshop
Two-dial life and score counter 00-99, snap-in TPU clickers
Keeps score at the game table so nobody argues about whose life total is whose. Two dials sit side by side on a peanut-shaped base, one per player, and each counts from 00 to 99. Turn a dial and the number changes, with a white pointer marking the current count.
5 parts · 15 g · 83 × 48 × 10 mm
Remix of Captive rotary fidget
Ask for the sizes you want to tweak, e.g. “make the width adjustable”.
How to print it
Parts
- frame · PLA · Flat as modelled, open top up
Prints in place with both wheels as one object (print group 'counter'). About 8 g. The two key pockets sit on the front edge; each has a snap lip with a 45 degree underside, so it needs no support.
- tens wheel · PLA · Flat as modelled, digits up
Prints in place inside the frame (left). About 3 g. Modelled showing 4.
- ones wheel · PLA · Flat as modelled, digits up
Prints in place inside the frame (right). About 3 g. Modelled showing 2.
- detent key ×2 · TPU 95A (off-white or any colour that co · Arrow cap down on the bed (printRotate 180 deg); the whole key footprint sits on the cap, so nothing overhangs
Separate small TPU print, 0.5 cm³ each (under 1 g). TPU because its clicker arm flexes on every count and its anchor squeezes past the snap lip. The off-white cap is the reading arrow.
Print settings
- Layer height
- 0.2 mm
- Walls
- 2
- Infill
- 15%
- Supports
- None
- Notes
- Default build-report figures for everything at 2 walls / 15%: about 15 g, 45 min. Frame and wheels print together as one PLA object with their gaps kept. Print the two detent keys separately in TPU 95A at slow speed, arrow cap down. 3 walls / 15% is about 21 g, 59 min, if you want a stiffer frame.
Assembly
- Print the frame and both wheels together in PLA as one object, with no supports.
- Print the two detent keys in TPU 95A, arrow cap down.
- After printing, free each wheel with firm thumb pressure, turning it back and forth until it spins evenly.
- Turn each wheel until a digit sits centred at the front edge, in line with its key pocket.
- Press a detent key straight down into each front pocket, arrow pointing at the wheel and round bump facing the wheel. Push until the back edge snaps under the frame lip and the arrow cap sits on the frame.
- Turn either wheel anticlockwise to count up, one click per digit. The engine checks that one anticlockwise click moves the digit under the arrow from n to n+1. The left wheel is tens and the right wheel is ones; read the two digits the off-white arrows point at.
Good to know
- You need TPU (95A) for the two small clicker keys, which also carry the reading arrows. Without them the wheels still turn but do not hold their place.
- Print-in-place clearance and click feel have been checked in the Loftsmith engine only, not printed. If the wheels fuse, rebuild with a larger Running gap (up to 0.45 mm). If the click is too stiff or too weak, change Detent depth (0.3-0.8 mm).
- The thumb-push figures are beam-theory estimates with an assumed friction of 0.3. Real feel depends on your TPU and print settings.
- PLA softens at about 55 °C, so don't leave it in a hot car.
- Small parts: not a toy for young children.
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