In here you will find all the Sidewinder bed cable strain reliefs your hearts desire. If yours is not, leave a comment and I will upload a version for it.
I wanted one that could just slide on without disassembly the bed levelling knob. This should work if you have kept the stock setup (I've done the bed levelling upgrade).
IMPORTANT: Apply a small amount of grease to help the part slide onto the frame.
To find what model you need, measure from the edge of the bed to the center of your cable. This measurement will be mm, corresponding to the file Cablerelief
To date I know of, 43, 65, 75, 85 mm but there may be more out there.
I used PLA as it's all I have right now. I don't see heat being an issue hear but we'll see. I recommend not using supports where the zip ties go through.
Edit: I've seen people print these up right with a large brim and no supports. While I did not think to print then in this way it is likely the best orientation. While less strong (than laying flat with support), it does not support a lot of weight and the main propose of this is to stop the cable from flexing at the bed connections.
Design: I used the cad that Rick and Morty made on GrabCad for most of the measurement. https://grabcad.com/library/artillery-sidewinder-x1-1 Big thanks!!!