This model is designed to help relocate your Snapmaker U1's filament feeders to the position of your choosing.  My bracket is designed to clip onto wire shelving with 30mm on-center spacing (3mm rails), but can be easily customized in your choice of CAD software or slicer.

Also included a cover plate for the existing filament feeder slots on the sides of the printer with a guide for the wires.  The retention tab for this isn't perfect but does the job.  Works best printed in a semi-rigid material with good layer adhesion (I used Siraya Tech TPU-GF).

You'll need a set of JST-GH 1.25 15 pin extension cables long enough to get to your feeders from their original location.  I had good success with https://www.aliexpress.us/item/3256810450992180.html but YMMV.