Edit: Added a Cover for the Raspberry Pi 5 and a new tray. With the new tray the SD card in the Raspi is easier to access.
Edit: Added a cover for the Raspi 4. It's based on a CAD Model of a Raspi 4, not on an actual Raspi 4. So I'm not sure if it is 100% accurate.
Together with the "Case for 5inch Waveshare DSI Touchscreen" https://www.thingiverse.com/thing:6153863 this is an additional holder for a Raspberry Pi (2/3/4/5) The Raspi is mounted on a tray and can easily be removed from the holder without any tools.
Mount the Raspi with four 20mm standoffs (M3 or M2.5) on the PiTray. Mount the PiCover (Raspi 2+3-> PiCover.stl, Raspi 4-> Pi4Cover.stl) with four M3x5 mm screws and washers Connect the ribbon cable from the LCD to the raspi and slide the tray into the holder. Push the latch into the two holes to fix the tray onto the holder.
I have drilled out the holes on the Raspi to fit M3 because I use M3 standoffs.
Additional parts needed:
4x M4x12 Socket Head Bolt
6x M4 Washer
4x M4 T-Nut
2x M4x10 socket head bolt
4x M3x5 mm Socket Head Bolt
4x M3 Washer
4x 20mm Standoff for Raspberry Pi Tray
2x M4x6x6 Heat Set Inserts
1x 15-20 cm long 15 Pin DSI Cable to connect the Pi With the Screen