See latest version, v3.0: https://www.printables.com/model/959686-7-segment-mechanical-counter-version-30-ratchet-fo

Version 2.2 of the 7-Segment mechanical counter. Improved design. This particular model is a sequential counter (numbers 0 - 9) that receives a linear input to cycle the display.

See video here:

Quantities of each 3D printed component for a complete assembly:

(1) - BODY_v2.1 (for printed screws, updated 5/5/24)

(1) - SEG_PLATE

(1) - MID_PLATEv2.2 (for countersunk screws, updated 7/10/24)

(1) - BACK_PLATE_v2.2 (for countersunk screws, updated 7/10/24)

(4) - SCREW_v2.2 (for countersunk screws, updated 7/10/24)

(2) - SEG A

(2) - SEG B

(2) - SEG C

(1) - SEG D

(2) - FOLLOWER A - (updated 5/23/24, reduced chamfer)

(2) - FOLLOWER B - (updated 5/23/24, reduced chamfer)

(2) - FOLLOWER C - (updated 5/23/24, reduced chamfer)

(1) - CAM A1 - (updated 5/23/24, reduced chamfer)

(1) - CAM A2 - (updated 5/23/24, reduced chamfer)

(1) - CAM B1 - (updated 5/23/24, reduced chamfer)

(1) - CAM B2 - (updated 5/23/24, reduced chamfer)

(1) - CAM C1 - (updated 5/23/24, reduced chamfer)

(1) - CAM C2 - (updated 5/23/24, reduced chamfer)

(1) - CAM D1

(1) - CAM D2

(2) - STACK_GEAR

(2) - SYNC_GEAR

(2) - SPRING

(2) - SPRING_DRUM

(1) - PUSH_ACTION_v2.1 - (updated 5/23/24, increased length and diameter of shafts that engage SPRING_DRUM)

(1) - PUSHBUTTON

Non-3D Printed components:

(1) - Type #19 rubber band (2mm x 90mm)

(1) - Type #31 rubber band (3mm x 60mm)

Material: PLA
Layer Height: 0.2mm
Supports: No

Based on a 0.4mm nozzle

ALTERNATE OPTIONS:

2-digit body: https://www.printables.com/model/869296-7-segment-2-digit-mechanical-counter-body-version

3-digit body: https://www.printables.com/model/889859-7-segment-3-digit-mechanical-counter-body-version

7 Segment Counter, v2.2, Single-Digit

by Flower-3D · original on Printables ↗

Hobby & Makers / Other Ideas

♥ 5.0k⬇ 14.9k🖨 99 prints

License: Creative Commons — Attribution — Noncommercial — Share Alike ↗segmentsmechanicalcounterratchet7numberssevensegmentcamssequentialfollowers

Print profiles

PUSHBUTTON.stlIN STOCKDEFAULT
⏱ 7m · 2 g · 28 × 11 × 11 mm · 1 material(s)
Prints on: A1 mini 0.4PLA
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SPRING_DRUM.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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SPRING.stl
⏱ time and weight estimated after preparation · 1 material(s)
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SEG_PLATE.stl
⏱ time and weight estimated after preparation · 1 material(s)
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SEG_A.stl
⏱ time and weight estimated after preparation · 1 material(s)
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SEG_B.stl
⏱ time and weight estimated after preparation · 1 material(s)
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SEG_D.stl
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SEG_C.stl
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SYNC_GEAR.stl
⏱ time and weight estimated after preparation · 1 material(s)
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STACK_GEAR.stl
⏱ time and weight estimated after preparation · 1 material(s)
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CAM_D1.stl
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CAM_D2.stl
⏱ time and weight estimated after preparation · 1 material(s)
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BODY_v2.1.stl
⏱ time and weight estimated after preparation · 1 material(s)
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CAM_C2.stl
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CAM_A2.stl
⏱ time and weight estimated after preparation · 1 material(s)
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PUSH_ACTION_v3.1.stl
⏱ time and weight estimated after preparation · 1 material(s)
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FOLLOWER_A.stl
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CAM_B2.stl
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FOLLOWER_C.stl
⏱ time and weight estimated after preparation · 1 material(s)
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CAM_A1.stl
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FOLLOWER_B.stl
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CAM_B1.stl
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CAM_C1.stl
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BACK_PLATE_v2.2.stl
⏱ time and weight estimated after preparation · 1 material(s)
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MID_PLATE_v2.2.stl
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SCREW_v2.2.stl
⏱ time and weight estimated after preparation · 1 material(s)
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Prints on: A1 mini 0.4PLA
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