Synthibox, a RaspberryPi case for the Zynthian Project, made in OpenSCAD

I designed this case for my Zynthian project. The electronics is partly derived from the V5 with an illuminated and 3D printed button matrix. 

The needed circuit information is on the Zynthian forum and github pages. I handwired it together without special PCBs.

SK6812 LEDs are mounted under the keys. There are cutouts for round PCBs. For the SK type the source code has to be changed accordingly:

/*

in: /zynthian/zynthian-ui/zyngui/zynthian_wsleds_base.py

change: strip_type=rpi_ws281x.ws.WS2811_STRIP_GRB 

to: strip_type=rpi_ws281x.ws.SK6812_STRIP_RGBW

*/

WS2812 LEDs can be used as well. 

The switches are "Kailh Mute Button 6x6x7.3mm Square Silent Switch" with a red knob. They are less noisy than the cheap black switches. And the keypad feels much better with these.

The cutouts are designed for:

• RaspberryPi4
• BKL 1109034 6.35mm sockets
• 5 pin DIN metal sockets 
• marquardt 1801.6115 switch
• BKL 072882 barrel socket

The knobs fit on knurled rotary encoders. For encoders with smooth rods they can be provided with 3mm square nut and grub screw.

Used filament:

• Prusament Galaxy Black PET, for case, brackets and knobs
• Eryone Galaxy Red PLA, for side panels
• Prusament Jet Black PLA, for keys and crossbar
• DruckerRhino White PLA, for key lettering (slightly translucent, because it was cheap)

I printed the keys and lettering with a 0.25mm nozzle. All other parts with 0.4mm. For the bigger parts warping protection with Lily Pads may be needed.

This project is not for beginners! Neither in 3D printing nor in electronics.

I will not provide further information or help for the electronics part. Please check the Zynthian web pages.

Have fun!