Raspberry Pi 4 and 7" Touchscreen
Description
After getting a Pi 4 and Raspberry touch screen, I looked at all the commercial cases for the screen and Pi. Nothing fitted my needs, and most involved rotating the screen 180º, so I created a custom mount that doesn't rotate the screen, with room to plug the power etc from underneath and held the screen at an easy to view angle. Designed in Fusion 360 The unit is two piece construction. The screen frame has a recess where the screen when fitted is flush with the face of the frame and held securely preventing it coming away from the frame. The frame will only fit one way due to the screen back. I have added the words "USB Side" to help The Pi board back section fits inside the frame by way of a lip and fastened through the frame into the existing screen mount holes using 8mm M3 screws. Longer or smaller screws wont fit. The mount sides are made to fit 8mm to prevent bending of frame or screen. I printed mine in ABS as it will be used outside but PLA will work. Printing is best done with the frame printed on its back without supports and the Pi case printed hollow side down using supports. (Printing the case on its back won't work as the legs protrude forward and backward of the case and would require extra supports under the back. I used linear supports rather that tree supports. This reduced print time by 4 hours and was easy to clean up post print The case has vents in the rear and has been made to support the twin fan heatsink/ (This required some mods to the heat sink to allow for fastening from the top with M2,5 screws. If your plugs are too long, you can buy right angle adapter from Amazon for a few bucks. I had these already so was not a problem but my plugs fitted without adapters. Depends on your cables. Photos of the back are first prototype with vents re-positioned to suit this type of heat sink and fans but are placed over the CPU etc for passive cooling
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