A six-digit odometer-style decimal counter: six numbered digit wheels on a common fixed shaft, with Geneva-type carry/borrow pinions on a parallel lay shaft, input from a hand crank through a slip clutch and a direction-reversing bevel selector, spring detents per wheel and a heart-cam reset shaft that zeroes all wheels after the carry pinions are disengaged.
| Digits | 6 (0-999999) |
|---|---|
| Carry ratio per stage | 10 : 1 |
| Crank to units | 1 rev = 1 count |
| Detent | 10 positions per wheel, spring ball |
| Overload | friction slip clutch ~0.5 N·m |
| Overall size | 167 × 101 × 83 mm |
| Parts | 42 |
| Material | Steel (S235) |
| Mass (calculated) | 1615.3 g |
| General tolerance | ± 0.2 mm (ISO 2768-m) |
| Process | machining |
| 2× | Deep groove ball bearing 608 ISO 15 |
| 4× | Socket head cap screw M4x12 ISO 4762 |
| 01 | base_plate 130 × 100 × 4 mm · 408.2 g |
| 02 | side_plate_l 4 × 90 × 75 mm · 209.3 g |
| 03 | side_plate_r 4 × 90 × 75 mm · 197.4 g |
| 04 | wheel_shaft 96 × 8 × 8 mm · 37.9 g |
| 05 | lay_shaft 100 × 6 × 6 mm · 22.2 g |
| 06 | digit_wheel_1 11.5 × 40.78 × 40 mm · 92.5 g |
| 07 | heart_cam_1 1 × 18.27 × 17.04 mm · 1.9 g |
| 08 | detent_spring_1 4 × 0.8 × 22 mm · 0.6 g |
| 09 | carry_pinion_1 2.5 × 16.5 × 16 mm · 2.5 g |
| 10 | digit_wheel_2 11.5 × 40.78 × 40 mm · 92.5 g |
| 11 | heart_cam_2 1 × 18.27 × 17.04 mm · 1.9 g |
| 12 | detent_spring_2 4 × 0.8 × 22 mm · 0.6 g |
| 13 | carry_pinion_2 2.5 × 16.5 × 16 mm · 2.5 g |
| 14 | digit_wheel_3 11.5 × 40.78 × 40 mm · 92.5 g |
| 15 | heart_cam_3 1 × 18.27 × 17.04 mm · 1.9 g |
| 16 | detent_spring_3 4 × 0.8 × 22 mm · 0.6 g |
| 17 | carry_pinion_3 2.5 × 16.5 × 16 mm · 2.5 g |
| 18 | digit_wheel_4 11.5 × 40.78 × 40 mm · 92.5 g |
| 19 | heart_cam_4 1 × 18.27 × 17.04 mm · 1.9 g |
| 20 | detent_spring_4 4 × 0.8 × 22 mm · 0.6 g |
| 21 | carry_pinion_4 2.5 × 16.5 × 16 mm · 2.5 g |
| 22 | digit_wheel_5 11.5 × 40.78 × 40 mm · 92.5 g |
| 23 | heart_cam_5 1 × 18.27 × 17.04 mm · 1.9 g |
| 24 | detent_spring_5 4 × 0.8 × 22 mm · 0.6 g |
| 25 | carry_pinion_5 2.5 × 16.5 × 16 mm · 2.5 g |
| 26 | digit_wheel_6 11.5 × 40.78 × 40 mm · 92.5 g |
| 27 | detent_spring_6 4 × 0.8 × 22 mm · 0.6 g |
| 28 | reset_bar 80 × 4 × 4 mm · 10.1 g |
| 29 | reset_lever 4 × 8 × 40 mm · 10.1 g |
| 30 | return_spring 8 × 8 × 8 mm · 1.1 g |
| 31 | input_shaft 70 × 8 × 8 mm · 27.6 g |
| 32 | bearing_608_1 7 × 22 × 22 mm · 14.2 g |
| 33 | bearing_608_2 7 × 22 × 22 mm · 14.2 g |
| 34 | bevel_fwd 5 × 18 × 18 mm · 4.2 g |
| 35 | bevel_rev 5 × 18 × 18 mm · 4.2 g |
| 36 | selector_dog 6 × 12 × 10.39 mm · 4.4 g |
| 37 | slip_clutch 8 × 24 × 24 mm · 25.2 g |
| 38 | crank 35 × 10 × 60 mm · 35.4 g |
| 39 | screw_m4_1 7 × 7 × 16 mm · 2.2 g |
| 40 | screw_m4_2 7 × 7 × 16 mm · 2.2 g |
| 41 | screw_m4_3 7 × 7 × 16 mm · 2.2 g |
| 42 | screw_m4_4 7 × 7 × 16 mm · 2.2 g |