Anet A8 Platform

thingiverse

Here is an aluminum one piece platform that incorporates an attachment point for a cable chain for the hot bed and thermistor wires. The attached file is a .dxf file and is suitable for laser or water jet cutting. I made mine from 5mm 6061-T6 aluminum. The corner holes are oversize rather than threaded, receiving an 8mm counterbore to keep the leveling springs centered around the m3 screw. I also ran an m3 nylock nut on the m3 adjuster screw up tight to the heat bed, centering the spring at the top and preventing the screw from spinning in the bed. I now adjust the bed only from below, requiring very little tweaking. This way I do not have to remove the glass bed cover to make adjustments. I use the knurled bed adjustment knobs here https://www.thingiverse.com/thing:2138298 Additionally, there is the drag (cable) chain restrainer that snaps on over the platform frame edge. This is necessary to keep the cable chain from moving above the bed when moving in the -Y axis. This is the cable chain that I used with this setup http://www.gearbest.com/3d-printer-parts/pp_268309.html . It comes in a 1 meter length, and less than half of that is required.