Simple panel mount for a HyperCube 3D Printer with 2020 profiles that are 120mm OD (Center to center is 100mm)

This is to suite the cat# XC4617 128x64 dot matrix lcd display which has the ST7920 chipset and runs over one way SPI bus or 4bit/8bit parallel bus.

Print as you see fit, mine was 20% infill but you do you, prob best to do 0.2mm layers for better chamfurs if you're rocking 0.4mm nozzle.

I've also included the FreeCAD file so you can grab the dimensions of the display & its mounting points (thou no data on the SIL header location) as Jaycar at time of writing does not provide a mechanical drawing.

My display section from mainsail/klipper is as follows

[display] lcd_type: st7920 cs_pin: PE14 sclk_pin: PE12 sid_pin: PE13

If it complains about “cs_pin not valid under display section” it means you have another display section declared elsewhere in your printer config, possibly via an include (that's what happened with mine, I had a dummy HD47780 display so I'd have a “kill” pin for my e-stop button)

Wiring is:

• PSB pin tied to ground (to force it into serial mode always)
• EN is PE12 (which is SCLK)
• R/W is PE13 or “sid” (SDATA, or MOSI as it's one way SPI)
• RS is PE14 (which is chip select)
• VCC to 5V
• GND to GND
• BLA to 5V (or optionally a PWM pin so you can dim your displays backlight)
• BLK to GND

Ref:

• https://www.klipper3d.org/Config_Reference.html?h=st7920#st7920-display
• https://www.jaycar.com.au/arduino-compatible-128x64-dot-matrix-lcd-display-module/p/XC4617
• https://media.jaycar.com.au/product/resources/XC4617_datasheetMain_73068.pdf