Sovol Zero simple umbilical cable clip + 1515 extrusion M3 nut

As you may have noticed, the Sovol Zero has an issue where the floppy umbilical cable that goes to the toolhead falls low and prevent proper homing resulting in an errror and alot of unpleasant noises. Some simple solutions exists such as ziptying the cable to the PTFE tube, but I preferred a more elegant solution that kept both independant.

I really like the very well designed strain relief from @Poko_2045361 (https://www.printables.com/model/1527814-sovol-zero-umbilical-fix-strain-relief ), unfortunately I didn't have access to self tapping M2.5 screws. So instead, I designed my own model based on the common M3 mechanical screws.

Two versions are available. The first uses a ziptie to secure both parts together, while the second one need no additionnal hardware as one part slide into the other. The sliding clip one is quite sturdy and is more convenient so I'd recommend this one over the ziptie version.

If you have the equipment, you can drill and tap some M3 threads in the 1515 extrusion of the Zero to attach the clip, but a more convenient way is to use the M3 nut that I designed to be insertable via the 5 mm holes used to pass M3 screws. These might be useful for other projets and I also included a version that can only be inserted from the extremities if that's ever useful to you.

BOM 

• M3x6 socket head (5 to 7 mm should be good) if you choose the nut

• M3x10 or more if you choose the drill and tap method

• Ziptie (optional), if you choose the ziptie version

Printing considerations

• Prints fine on a 0.4 mm nozzle, might looks nicer with a smaller nozzle.

• Arachne wall generator gives a better filling for smaller sections, but classic mode still works fine in my tests.

• 0.2 mm layer height for both clip parts

• 0.1 mm or smallest layer height you can for the 1515 extrusion M3 nut.

• No support needed if you flip the c-shaped part for the sliding version.

• Print in a material suitable for the temperatures of the enclosure. PETG should be fine, ABS or ASA is better.

• You might wanna scale the 1515 extrusion M3 nut by a few percent to compensate for shrinkage depending of the material you use as the tolerances are tight.

Assembly

Option 1 : Drill a hole in the 1515 extrusion and tap M3 screw threads. Use a M3x10 screw to secure the holder.

Option 2 : Print a M3 nut and use a M3x6 screw to secure.
See photos for reference
1- Screw the tip of a M3 screw to the nut with the correct orientation (smallest part of the wedge away from the screw. You will need a longer M3 screw for the initial insertion of the nut (8 mm +), a screw from the back pannel should do the trick.
2- Insert the assembly via one of the 5 mm holes with a 45 degree angle, then straigten.
3- Slide the nut to the desired position, usually above the entrance location of the cable.
4- Remove the positioning screw and screw in the clip with the M3x6 screw.
5- Place the umbilical chord inside the clip and either close with the C-shaped part or the ziptie part.