10 Modular Inch Server Rack - Prusa MK2.5S optimized print settings
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4U version with print settings optimized for printing speed on Prusa MK2.5S
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- Creative Commons — Attribution — Noncommercial
The most significant change is the extrusion width which is changed to 0.6 mm across the board. This increases print speed without sacrificing layer adhesion as increasing layer height would do. XY resolution is reduced, but this doesn't seem to have any downside in this model.
10 % Support Cubic infill is used. The perimeters provide stiffness. The infill is only to support the top layers.
Support settings are from https://web.archive.org/web/20230315050942/https://projects.ttlexceeded.com/3dprinting_techniques_removable_supports.html with Top contact Z distance increase by 50 µm to make the supports easily removable. At the time of writing the default settings in PrusaSlicer still result in supports that are fused to the model and can only be removed with significant force and effort.
Overhang threshold modified to only produce supports where necessary. In front-back-brace4 paint-on-supports were uses to only support the sides of the model but not the screw hole. This is contrary to the instructions in the original model, but I don't see how this could be printed without supports.
The result printed in PLA when assembled is a stiff rack. Possibly the number of perimeters could be reduced further from 3 to 2 to reduce cost but I chose to err on the side of caution.