Malolo's screw-less / snap fit Raspberry Pi 3 Model B+ Case & Stands

myminifactory

There already is a plethora of raspberry pi cases on the internet, but that's precisely why we don't need another one - yet I created one anyway because I wanted to and had a lot of fun doing so. I aimed to achieve several key features: easy to print without support, top and bottom layer printable on print surface, no screws or glue needed (snap fit), slim/compact outline, acceptable ventilation without fan, good looking (very subjective - I know). Additionally, I wanted a stand to put it on. The design was tested with 0.2mm and 0.1mm layer height, both working well. I recommend using PETG for better heat resistance. The case is designed for the Raspberry Pi 3 Model B+, but it may work for models with similar layouts as well. However, since this is the only model I own, I can't verify that. A version for the Raspberry Pi 4 Model B will be released soon. If you have any questions or suggestions, don't hesitate to let me know. There are several different designs for top and bottom. For bottom, there's a base design without ventilation holes, hexagonally shaped ventilation holes, and simple slot-shaped ventilation slots. For top, the same options apply. Three different stands are available: vertical stand, horizontal stand, and flat stand. The vertical one also has a version that routes Raspberry Pi status LEDs to the front by printing two files using transparent filament and sliding them into the corresponding holes of another file. It's easier to understand by looking at the pictures. Multi-Color Printing -------------------- I learned how to create multi-material prints without special hardware. This process involves adding the M600 command to the custom tool change G-code setting, which pauses the print outside the print area and prompts you to switch filaments. Some Tips --------- When using Prusa Slicer, make sure to answer "yes" when it asks if multiple objects loaded for a multi-material printer should be considered as a single object with multiple parts. This ensures that the colors are assigned correctly. During printing, whenever your printer reaches the M600 command, it will pause outside the print area and prompt you to switch filaments. Some printers may not support this command, so check your printer's documentation. When using the Original Prusa i3 MK3, be aware that the printer will extrude quite a bit of filament after confirming completion of the filament change to build up nozzle pressure. To avoid extruded filament from being dragged over to your print and making a mess, don't remove the filament that is extruded during the filament change. Naming Scheme for STL Files --------------------------- To help you pick the right files, I used the following naming scheme: Function (Bottom/Top), Designs (Base/Hex/Logo/Slots), Multi-Material (SM/MMX), and Accessories (Cam/Disp/Pins). If you're unsure which file to choose, open it in your slicer and see what it looks like.