A simple cable strain relief, that can be added to the Sidewinder X1 without having to get the cable out of the connector (could make cable's and connector's life longer...).
Simply unscrew the two screws holding the extruder cover, put left and right part on place and slide them into each other, put the two needed M3x40 screws, incl. washers (but without screwing them tight yet). Then adjust the position of the strain relief to catch the cable but not bend it. Normally, if the screws are in the middle position, the cable is / goes straight out of the connector but you can also adjust it if needed. Tighten the screws again.
Maybe you want also to put some duct or electrical tape on the surface where the cable has contact with the strain relief.
Attached is also the FreeCad 0.18 file.
Small update on request: v2 has slots that are 1mm wider on the left side.
The designs is made for 0.20mm layer height. Could also work with other heights but haven't tested it.
The clearance at the sliding parts is 0.1mm.
You may have to calibrate your extruder:
Better if printed with 4 perimeters!