Anycubic Chiron top Z-axis support and cover

thingiverse

This is designed for ensuring the printer is prepared with a diagonal support for the upper frame. The stock plastic cover restricts access to the corner and demands a replacement cover when adding a diagonal support, solving the rattling issue on the upper Z-axis screw rod of the Anycubic Chiron. This design provides a snug fit, barely no clearance in the groove that it does not require any screws. You have to remove the upper horizontal frame to install this or remove the Z-axis screw rod so you can insert this part. The design does not demand additional parts but reuses the existing bearing support for the Z-axis screw rod. I printed this using ABS plastic which is the ideal material for this part, but you can print it with PLA, PETG or any material that maintains expected dimensions during printing. I also provided a plastic cover for the bearing to prevent dust from settling on top of the bearing and to provide access to the bearing when you need to lubricate it during a maintenance routine. If you find the cover not so tight, just rotate it or add some glue to its side to thicken it. I did not use any glue and it fits perfectly in my setup. This is the result of several design iterations ensuring it fits well and does not cause any problems. I raised the horizontal bar holding the hotend when test fitting the design to make sure it aligns well with the screw rods. Printed at 0.2 mm layer height at 20% infill using ABS material. For one corner, it printed 1 hour and 21 minutes including waiting time for the hotend and bed to reach their expected temperatures. The STL file is for one corner of the printer, so you can print one for the other corner by creating a mirror of the same file in your slicer program before slicing. Please also check the aluminum frame groove, as some may not be cleanly cut. You will need to remove those sharp edges using sandpaper, a file or anything metal that can scrape off the aluminum edge where it was cut from factory. Be very careful, these are extremely sharp edges. Dec. 30, 2018 - updated STL file with added chamfer on the side making it easier to insert into the aluminum frame.