Cable Chain Motor Mount for ANET A8 E3DV6 BMD Direct Drive X Carriage

thingiverse

**UPDATE** The current version uploaded to Thingiverse will not work with the Anet A8 Plus due to a misaligned chain attachment that blocks the filament entrance to the BMG extruder. I have an update in progress that fixes this issue and adds a chain-fitting with looser tolerances, reducing friction during motion. I'm also working on cable chains with loose enough tolerances to minimize friction/drag on the print head while maintaining stiffness to prevent sagging towards the print bed. These will be included once the update is published. Keep this design liked or saved for easy access, but refrain from investing time or filament in it until it's optimized for the A8 Plus and presumably the A8 as well if using Richard90's BMG/BLtouch carriage. This is still a work-in-progress. I uploaded this prematurely due to a request, but I can't confirm its functionality since I've run out of filament. It should work as-is, but it's taking longer than usual to receive a shipment due to the COVID crisis. This remix is based on the X-carriage/mount by Thorinair and designed for the BMG/E3D/BLtouch X-Carriage by Richard90. It's essential to modify your end-stops or firmware since this design limits a small portion of the X-movement, which will crash into the frame if not addressed. The nozzle should still have enough space to reach the end of the bed, but I can only confirm this on the Anet A8 Plus with a 300x300 bed. Due to limited space on the BMG backplate, I had to remove significant support material from the original model to make it fit and utilize the two available M4 screws near the top. I bridged the empty space in the model where the screws fasten into place, adding some rigidity. However, I chose not to modify this section further to avoid covering the wire hole on the upper-right portion of the BMG backplate or misaligning the mount from the other Z-stepper mounted side. A small divot was added to one side of the mount, providing room for screws that may protrude from the side fastening the extruder. This is visible in my pictures where I'm using small screws that encounter this issue. After a test print with PLA, everything seemed satisfactory, but note that you'll likely want to use the most rigid filament available for additional support if possible. The supports slightly damaged the female sockets in my picture, but the diameter of the threaded M4 sockets is sufficient under normal circumstances. It was just that my part-cooling fan broke, causing over-adhesion of the support layers. I'll have better pictures of a post-install and see how it performs once I receive more filament. If you like this design, be sure to leave a comment and a like. Thank you! "Bark bark!"