Ender-5 Bed Support (Topology-optimized struts)

thingiverse

Topology-optimized Bed Supports "struts" that pressure fits on existing bed screws and are fixed in place by 12 x 3mm-wide fasteners (six per strut). To be used right out the printer, no supports needed, without any after treatment or hardware mod to the printer: shaped to avoid ANY LOSS in Z height. Place in bed at 45° like in the photo, to match the simulated behavior (designed strength). Compatible with Ender-5 / Ender-5 Pro (mine). ________________________________________ 04/08/2020 Update: This is the Reddit of the design, feel free to ask any question! https://www.reddit.com/r/ender5/comments/gxq2df/simple_and_topology_optimised_bed_supports_struts/ In few words, the advantages of this solution are: (1) The struts press fits between the bed bearings and bearings bolts, this coupling already hold the struts firmly in place and in contact with all the bed surfaces. (2) The fasteners have to be placed like showed in photo, in particular those on the overhang side of the bed, ensuring a very firm contact. If placed correctly, the assembly is stiff, properly stiff. (3) The design is thought with PLA/PLA+ in mind, trying to overcome the cracks forming in other designs when printed with this material. The idea behind is to provide a stiff support, anchored to the bed, rather than a part that work in a pre-stressed condition. For me and others, it worked very well with just a bunch of fasteners, and the difference compared to the un-supported bed is huge.