UM2 Twist Lock Bowden Clip

Replacement Bowden clip for UM2. Lost the stock clip, so I replaced it with an improved clip that stays in place while unlocked.

3D printer parts and enhancements

Creative Commons Attribution Noncommercial Share Alike

Commercial use is not allowed, you must attribute the creator, you may remix this work and the remixed work should be made available under this license.

Learn more or download attribution tags


This part is based on Jeroen van Zijp's "Bowden Locking Clamp Clip", with a few Improvements to make it fit better and ease its use. (

I printed the original and had trouble getting it to fit right, it was either too tight on the thumbscrew to get into place or too loose and worked its way out from the connector.

My Modifications:
I increased the hole size so that it moves freely on the thumbscrew, and shaved the material off the front. The print head now can move all the way to the front and right side without any collisions.
Because it is now free to rotate I added a small detent feature to retain the clip in place like the stock bowden clip, and refined the geometry so that it swings smoothly into place including a small ramp to get easily under the connector.
and finally I added a rib to the top so that you can grip and rotate the clip into place easily.

The clip is designed with a 2.5mm thickness, using Cura's built in "Cut off object bottom" option in the advanced tab you can generate any thickness that you need between 0 & 2.5mm. Example: 2.5mm is too thick for my machine, so I used 1.3mm for "Cut off object bottom" to print a resulting 1.2mm thick clip.  For a good starting point the stock clip measures .9mm thick.

I recommend printing @ .1mm layer height (or smaller) to get the shallow ramped features to print well & 100% infill.  Printing with thicker layers should work fine but the ramp will most likely not work as well.  Works well printed in PLA, and ABS

Rev 2 Edit: Tweaked the snap geometry slightly and confirmed that design works in ABS



Issues are used to track todos, bugs or requests. To get started, you could create an issue.


C6f0193c25723df61ce85f3d894b5300?default=blank&size=40David F. added this to the UM2+ collection ago
Mini profileChristopher Bray added this to the Ultimaker2 Upgrades collection ago
Bcbf3000397afde5dd1875cf5476e84b?default=blank&size=40wowowaa added this to the Ultimaker collection ago
Mini rowiac avatarrowiac added this to the UMO Mods collection ago
987c5ceadcbccee52137d23bdda54b1e?default=blank&size=40avogra added this to the UM2 stuff collection ago
74637ddd9c05e8569750b756b7313729?default=blank&size=40Scherdin added this to the Um2+ collection ago
B429fd15a068513fad4bf70a14344470?default=blank&size=40n3buk4 added this to the Ultimaker pimp collection ago
Dd89dc24749db7d3f59c03be7318f6fa?default=blank&size=40Dani Epstein printed this ago
Carousel thumb 2016 05 29 14.30.42
Printed on:
ultimaker 2
Very good result, printed in ABS.
Mini img 0338Sepio added this to the Things to make collection ago
C547b810270b9980d0200c7f15c58e0a?default=blank&size=40ThomasBe added this to the PrinterAcc collection ago
97f8ed8b7ff103b9338f8ee5297a6e9f?default=blank&size=40Blankenase added this to the um2 collection ago
8853c4a7fb193f9b4072e62c930e7896?default=blank&size=40mrahndt added this to the ToDo collection ago
081a027e7ac6bdd0b6a50aa245cb3de4?default=blank&size=403DAmsterdam added this to the ultimaker 2 collection ago
Mini fireball hd imagesPpyromann published this design ago