Ethernet Cable Clip Repair

by kohlmaker, published

Ethernet Cable Clip Repair by kohlmaker Jan 2, 2017
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These are replacement clips to fix broken ethernet cable clips. The clips attach to the Ethernet cable and replace the broken clip so that the cable stays locked into an Ethernet port.

EDIT - For some reason Simplify3d doesn't like this model. Cura works

EDIT 2 - I recently posted some newer models that reflect the exact dimension per the Ethernet spec... that said I am not sure they work better or worse than the original design. I printed a few and tested them and they seem to work the same as the original design. Thanks to everyone who has downloaded these and posted comments! Enjoy!

Print Settings


Prusa Original i3 MK2








100% SOLID


Takes approx. 8 minutes to print on a PRUSA Original I3 MK2. Make sure you print it with 100% infill to ensure its strong enough to handle the bending/flexing. Does not require any Support/Raft and I would not print any bed adhesion (brim/raft) because it can impact the ability of the clip to fit into the port.

How I Designed This

Fix for Broken Ethernet Clip

I have several Ethernet cables with broken clips and I was sick of them falling out of my router. While there are a few alternative DIY ways to address this issue, I wanted to tackle a simple project that would help me learn basic design within Autodesk's 123D Design software.

I "Remixed" the STL from Jaegermeiste "Ethernet Comb" and modified it to make a single comb with a locking clip.

My design skills are primitive, but the result works... I have made 2 lengths to work with different versions of Ethernet cables (See the pics). If you are having trouble getting these to lock into the Port, just make sure bendable portion of the broken clip on your Ethernet Cable is completely removed. Feel free to modify as needed! Hope you find these useful!

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For those having issues with Simplify3D cutting off sections of the part, you can fix the stl file with Microsoft's 3D builder. Right click on the stl file, Open with 3D Builder. Import the model, select it and then on the Edit tab, click Merge. Save as stl. Now Simplify3D shouldn't have any issues.
Alternatively, you can try Microsoft's online service for fixing 3D models: https://tools3d.azurewebsites.net/

I've done a rework of you great design in freeCAD. So you can modify without the need of privative software.

You can get it here: https://www.thingiverse.com/thing:2839711

Ethernet Cable Clip Repair - Rework

Awesome! Thanks so much for making that available to everyone!

Thingiverse never stops surprising me. Amazing work! Too bad one can't print piece of a cable, to fix a cable my dog chew apart :D

Hah! Thanks for the comment! We can’t 3d print the cable but I am sure you can find a muzzle to print :).

These work so good Thanks

Thanks for the comment Maddozzy! Glad they work for you!

Wow, fantastic idea! We've just been having to just throw them away :-(

Ha! It never crossed my mind to throw them out... Before I made this clip, I just kept using broken cables and wondering why I suddenly didn't have internet!

Thank you very much, they work great! I'll finally be able to stop using hot silicone (haha). You are right about S3D but I uploaded the original file to tinkercad and downloaded it again and it printed it perfectly.

Glad it worked for you!! Thanks for posting your make!

This is just so clever ! Thanks for the idea, and for the model, that will be very usefull !

Thanks for the comment! Hope it works for you... Let me know if you have any issues, i have other versions but I have been to lazy to test and post :)

Great Idea!
But I think, it's a little bit too wide.
I found here a specification for the jack:


If this is correct, then the front part has to be 6.1mm wide (on your design 6.3.mm) and the narrow part 3.25mm (4.0mm).

Oliwee thanks so much for your post! I will admit I designed it using some crude measurements on real world cables and then used some trial and error to make the design work. I can assure you the plugs do work but I will go back and update the design to fit the specifications you posted. Look for a revised file in the next few days once I get a chance to update it!

Works like a charm. Just what I needed. Thanks Kohlmaker!

Glad it worked for you! Thanks for commenting!

Just uploaded a new file for the Long Clip - hopefully this one doesn't have any issues!

I have a problem with the models everything is normal and then when I click on Prepare to print! (Simplify3D) the lower part (where the cable suppose to fit) is missing !
Is there anyone with the same problem ?

there is a hole in the model - if you look at the 2nd picture on thingiverse - you will see that it is missing - I have never gone back to fix it because it always printed OK for me. I use cura and slic3r. I have never tried simplify 3d - I will see if I can repair the model. Perhaps meshmixer will fix it - I will post a corrected file if it works

I repaired the file and posted it - hopefully that fixes the issue. Sorry about that!

I will try it right now thanks !

Still doesnt work thats weird, did you update it yet?
And I find another "hole" under the little box in the middle

Stink... I did upload a new file titled - REPAIRED and it looked fixed to me. I am not sure how to fix the issue you have. I'm not that great with the 3d design software so it doesn't surprise me that the model has some issues. Try slicing in Cura - I am 100% sure it works with that. Or, there should be some repair model feature in simplify 3d that can close the holes and print a solid piece. Sorry for the trouble!

I already try the repair on Simplify3d and it doesnt work.
Anyway , Thank you very much for your help!

I made these models "Solid" to print with Simplify3D. They aren't pretty but it works. How would you like me to send them to you?

I dont know maybe you can post it on thingiverse :3
But I dont really need it anymore thanks !

Saved my cable! Thanks!

Glad to hear it worked for you!!

This was a little too wide to fit into the ethernet jack on my PC. Simply scaling the whole model to 92% width (other dimensions left as-is) made it work for me.

Thanks for the Feedback David... I tested on my router and pc but was worried that it may not exactly fit in all situations. I wonder if its a printer tolerance/accuracy or variation in Ethernet jacks.

I will print a scaled down model and assuming it still works for me, i'll re-upload the scaled down version to ensure it fits more situations. Thanks again!

Big thank you for this awesome idea!

Thank you these work great!!!

Great idea, thank you

Thanks so much!