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Cable chain

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Cable chain

Published at 2024-05-03

By eiPionezero

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★ ★ ★ ★ ☆ (5 comments)
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prusa cable chain P3Steel cable chain
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eiPionezero

3 objects 13 Followers
Joined about 10 years ago The Netherlands

Description

UPDATE 09-02: Thanks to the suggestions of Thorn, I have updated the model to v1.2. I have changed back one of the two main changes in v1.1 and added slits to the female tabs, mating the links should not be a problem anymore. Photo renders are not updated yet, still renders of v1.0.UPDATE 07-02: Thanks to the suggestions, I have update the model from v1.0 to v1.1. Photo renders are not updated yet.This cable chain is different from other cable chains on YouMagine and Thingiverse, because it uses a slightly different connection method. With this connection type, no corners stick out when the cable chain is bent and the individual links are turned with respect to each other.This cable chain is meant to be used in a 3d printer like a Prusa. At the moment I do not have a 3d printer, the P3steel kit I ordered should be delivered next week, therefor I am not yet able to design cable chain ends for assembling on the printer. I hope to have these designs ready in a few weeks.I also have not been able to test this design. According to my calculations, everything should fit very nice, not too tight and not too loose, but just a close fit which rotates perfectly. If you do have a 3d printer up and running, you can help me by test printing a few links and sharing your results.Dimensions v1.2: axis-to-axis length: 20mm outer height: 12mm inner height: 8mm outer width: 20mm inner width: 12mm outer fillets: 0.4mm (v1.0: 0.5mm) inner fillets: 1.6mm (v1.0: 2mm) slits: 10mm (v1.1: none; v1.0: none) shorter studs: none (v1.1: 0.8mm) overall clearance: 0.4mm (v1.0: 0.25mm)

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Richard En Grietje van Soest
Richard En Grietje van Soest
about 8 years
is ot printing OK. printing stops after few minuts and gave errors unknown commands
eiPionezero
eiPionezero
about 10 years
Thanks again for your help :) Like you said, the female tabs do not protrude very far outside the top/bottom plates.herefor I do not think even shorter or chamfered studs would be the best solutions, but the solution should be your last suggestion, more flex to the female tabs or the studs. More flexible studs has the advantage of looking very nice and professional, but is very hard to print without support. More flexible female tabs has the disadvantage of looking less professional, but is a lot easier to print. Therefor I have chosen the second solution, which you can find as v1.2 :) If this will solve the problem, I will design a v1.3 with the same features, but with a more professional look.
thorn
thorn
about 10 years
<p>You're getting there :)</p><p>1) Still have pretty much the same problem I'm afraid. The way you designed it makes it very strong. The walls are thick.</p><p>The female tabs turn out 2mm thick and since they do not protrude very far ouside the top/bottom "plates" they are incredibly rigid and flexes virtually nothing in ABS. I barely manage to mate them now but it weakens the female tabs and they break/deform in the corner where they meet the top/bottom plate.<br></p><p>Maybe if printed in nylon it would work. Maybe mating will work better if the studs were chamfered so the female tabs don't need to be stressed so much, though they would still be hard to take apart when mated.<br></p><p>I think introducing more flex to the female tabs or the studs mount might be tsomething to consider.</p>
eiPionezero
eiPionezero
about 10 years
@thorn, thanks for your test print en suggestions. I have adjusted the model with a lot of small differences and this main improvements: 1) The studs are now 0.8mm shorter. Mating should be a lot easier now. 2) Overall clearance is updated from 0.25mm to 0.4mm. Difference between stud radius and stud hole radius is therefor now 0.8mm, which should be a perfect fit now?
thorn
thorn
about 10 years
I like the design. However I have a few suggestions. I've printed them in natural ABS, at 0.2mm layer height, 0.4mm nozzle and they are impossible to mate without modification. I would either make the studs shorter or maybe even better add slits down the top/bottom sides to make the female tabs flexible. More clearance around the studs would also be nice, they bind a bit for me.

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