Anet A8 Y Cable Chain Bed Bracket (Remix of sukhoi27's model)

thingiverse

This is a remix of the bracket from sukhoi27's fantastic Anet A8 Y Cable Chain model: https://www.thingiverse.com/thing:1874802 While Sukhoi27's model is fantastic for managing wires to the heated bed, it suffers imminent damage to links who are unfortunate to park themselves directly beneath the nozzle at and near the home position, on printers that lack the 3 to 4 millimeters of additional clearance offered by installing a glass build surface of some type. Those of us still printing on the aluminum bed with painters tape are affected. I've seen a few makers addressing this issue by flipping orienting the bed connector and Y chain to the right side of the printer, and even a few who have added a piece to the front left bed leveling knob to push the cable chain downward as the bed retracts. I like the chain on the left as Sukhoi27 modeled it, and other solutions I've seen appear as though they will add complications of their own. The most obvious solution would be to simply add a piece of glass as a build surface. There may still be the occasional instance where I need the full height the printer is capable of printing, so the glass wouldn't be permanently affixed, while the Y axis chain will be... I decided that adding a 15 degree offset to the connecting point to the first link in the chain was a really good compromise. That 15 degree offset translates to a mild downward force to subsequent links, especially when the Y axis is in recession. I made the following changes to Sukhoi27's "Anet_A8_Chain_Y_Hotbed.stl": * Added 15 degree angle stops to the link interface * Shaved some material from both top and bottom, reducing the overall profile of the part * Opened the cavity for the connector and wiring * Removed the top bar at the cable exit for easy installation to existing wired chain * Opened the screw holes to better accommodate M4 mounting screws The chain links and chain to frame brackets I'm using are of Sukhoi27's original and unmodified design. I tried to make my changes in such a way as to make installation to already assembled and wired cable assemblies, mostly, because I didn't feel like rethreading the bed cables. :) Another shout out to Sukhoi27 for a fantastic design!