Flexible Shaft Coupler for Various Shaft Sizes
thingiverse
Flexible Shaft Coupler - for various shaft sizes: * 5mm shaft with flat (Common on NEMA 17 Motors) * 6.35mm shaft with flat (Common on NEMA 23 Motors) * 8mm shaft (a common size for leadscrews/ballscrews) * 1/2 inch shaft with 1/8 inch through pin added (Misread request from JoelJustJoel - oops! Still a viable design..) * 3/8 inch shaft with 1/8 inch through pin added (As requested by JoelJustJoel) This list will continue to grow as I add additional shaft options based on user requests. To print the coupler end pieces, use strong and relatively non-flexible filaments such as PLA, ABS, PETG, Nylon, or others. Print the flexible insert with NinjaFlex, TPU, or other types of flexible materials. The inset holes are designed for 4mm screws and nuts to clamp the coupler to the shafts. If you need other shaft sizes/profiles, let me know! I'll add them promptly. Please send detailed measurements on the shaft diameter and any flats that may be present. Drawings or photos as reference will help a lot.
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