3-bit Mechanical Punch Card Reader
This is a proof-of-concept, 3-bit Jacquard-style, all-mechanical punch card reader. The design was inspired by designs in a textbook called "The Mechanism of Weaving" by T.W. Fox (it's about 100 years old, but I found a copy on Amazon), and adapted to work within the limitations of my Makerbot ToM printer. It is a single-cylinder, single-acting, positive-action device. This design could readily be adapted to a higher number of 'bits' (needles) by re-designing only a few parts. With minor modifications, it should be suitable to mounting over a miniature loom, with the bottom eyes of the hooks lifting healds or warp threads directly. This is probably as impractical as it sounds. This hosted file keeps creator credit and license details.
Print details
- Difficulty
beginner
- Materials
PLA suggested; confirm scale and supports in your slicer before printing.
Download files
- card.stl
STL · 94.2 KB
Download - cylinder_catch.stl
STL · 15.4 KB
Download - cylinder_end.stl
STL · 49.9 KB
Download - cylinder_rail.stl
STL · 23.5 KB
Download - cylinder_wall.stl
STL · 131.6 KB
Download - drive_wheel_axle_A.stl
STL · 28.4 KB
Download - drive_wheel_axle_b.stl
STL · 26.9 KB
Download - gooseneck.stl
STL · 32.0 KB
Download - griff_drive_linkage.stl
STL · 80.8 KB
Download - griff_drive_linkage_cap.stl
STL · 28.8 KB
Download - griff_drive_wheel.stl
STL · 67.4 KB
Download - griff_end.stl
STL · 91.1 KB
Download - hook.stl
STL · 16.3 KB
Download - hook_cage_wall.stl
STL · 61.0 KB
Download - hook_cage_wall_lower.stl
STL · 120.0 KB
Download - hook_plate.stl
STL · 11.2 KB
Download - needle.stl
STL · 6.5 KB
Download - needle_holder.stl
STL · 138.9 KB
Download - rail_holder_back.stl
STL · 34.3 KB
Download - rail_holder_front.stl
STL · 41.1 KB
Download - small_drive_gear.stl
STL · 76.2 KB
Download
File metadata
- card.stl
SHA-256:
8ea7b01f2cced350f5c18cb3087ceb163e299ede7e4aa871fc878bc9e6feaaed - cylinder_catch.stl
SHA-256:
2303229c9ddf4f8fb6407ed1117604738d3d0e5e2b95d56ec2e1fa30c6f167cb - cylinder_end.stl
SHA-256:
49c2d3bab9ebc5eaf534f482275d1ba27700e1342bab5a480098392c31a52834 - cylinder_rail.stl
SHA-256:
b950616506e801a4e105887d2d1bc6a7a506fc2acfebc90c52e5cb94f7a53464 - cylinder_wall.stl
SHA-256:
cc7034e7ae5ac84663e6b00511b845ba312c844094d47978a98b7db32d80609c - drive_wheel_axle_A.stl
SHA-256:
cc96f5c72252c534cd38248e88d57e5941cebbe490e03e52706ba65c03a7deb5 - drive_wheel_axle_b.stl
SHA-256:
055aca9a8f914237c63bc96ff2fbe8cfc335c69b7b7a283f1df0e17a9dc4574c - gooseneck.stl
SHA-256:
b829b8508a8a180d122f0e7ee3e4dce1b7eabb8172e751d15d45285b867d345f - griff_drive_linkage.stl
SHA-256:
e29414102c46f84edf9ba21c45f84ed550f47e2fa6d9a6634127e3602b907012 - griff_drive_linkage_cap.stl
SHA-256:
a3991c1980c5a68e4943df4fc766f9b48a0f97497bf6990c6f9acf92aa4b6d8b - griff_drive_wheel.stl
SHA-256:
9b3ded62fdb0b85e9707df87c432f39af710b93a94ef0c046cd98a1d7de9fd7a - griff_end.stl
SHA-256:
fdd0aaf4c16bc111c8c4c92c57c45412046ddc17310a81cc173b38dccec34731 - hook.stl
SHA-256:
ec8af9eaa3a462ebb2bafa2a62a204e23990460471523c2a4685b1d1f6acf92e - hook_cage_wall.stl
SHA-256:
0b41ddb853e6d261427e36f9b3f870545c7cdbb2f0ba7758641fc7de0061c783 - hook_cage_wall_lower.stl
SHA-256:
5526fb8a43bb5a1fdcc117d8cfc14207406700d30b830541124b6055eb85491e - hook_plate.stl
SHA-256:
d4309fa2137d2aef169e4f3fd049019bde5e489bb80b00c4c19443d6f2745467 - needle.stl
SHA-256:
0287bd4358f0a1392fc7923914c1a8c04e8af87db709ea6df24f8be8aba97c59 - needle_holder.stl
SHA-256:
3b7e89b926acffef9cbadba7d932db61231c0027b9a4cc7342c00c3bf1980d1b - rail_holder_back.stl
SHA-256:
e64fe373ebf3105f147ad88b525b53d6dd2a767f907cdf981fcd877b079d5b68 - rail_holder_front.stl
SHA-256:
d95b60c905797ddadc159b18e8d579d56cda6a9f15b24c77edbf029c7d38a522 - small_drive_gear.stl
SHA-256:
0194196bf4f5f44eb9cd482105194581d9e88899bd014edc8ae6509213261963
Attribution
3-bit Mechanical Punch Card Reader by chris (the original source). License: Creative Commons CC0 1.0. Source: the original source