Heatbed cable chain that clamps onto the rubber nub on the frame, and screws into the cable clamp on the bed. I printed the chain from PLA, but printed the piece that attaches to the bed from PETG. I plan to print it from ASA on my X1C as soon as it gets through with the 26 hour print it is on now. This should prevent the cable from crimping even if you lean the printer back or put it too close to a wall. Requires 2 - 3mm x 16mm or 20mm cap head screws, and 2 - 3mm nuts for the frame mount, 1 - 2mm x 16mm cap head screw for the bed mount.

Remove the 2mm screw from the cable clamp on the bed, and attach the bed mount with the required 2mm x 16mm cap head screw. Insert the 2 - 3mm nuts into the frame mount, butt the frame mount against the frame as close as possible, and attach with the 2 - 3mm x 16mm cap head screws, then assemble the rest of the chain

I used the same chain that I have used many, many times on various Creality and Geeetech printers for the Heatbed cable.

Since it appears that some cables are longer than others, I have added a file with only 4 extra links in it for convenience.