Anet A8 Fixed Bed Spacer with Cable Chain Guide

This is probably not so much a remix as a recreation, but (1) I got the dimensions for the original part by moving the imported STL around in OpenSCAD and (2) I'm currently running the original parts. I plan on replacing the one at the left forward corner, though, with a guide to keep the Y-axis cable chain from getting in the way of the printhead. (The chain itself is very flexible, but the wires inside? Not so much. I probably ought to replace the bed power wiring with silicone-insulated w