Firmware

Follow this guide to install Klipper firmware onto your 3MS MCU. This guide is a modified version of the Klipper Documentation.

Info

The following controller(s) can skip this guide:

• BTT Octopus (main MCU)
• Zonestar ZM384 (main MCU)

Create firmware.bin

Make sure your 3MS MCU is plugged into your Klipper Host. Run in your terminal:

cd ~/klipper
make menuconfig

In the menuconfig, configure it to your MCU. Instructions are included at the top of 3ms/controllers/xxx/steppers.cfg.

Geetech A30T

If you're using a Geetech A30T controller, follow the flashing instructions here.

Run in your terminal:

make clean
make

The klipper.bin file, located in ~/klipper/out/klipper.bin needs to be copied to a MicroSD card and renamed to firmware.bin (case-sensitive).

Install firmware.bin

Next, unplug the 3MS board from the PSU and your Klipper Host and insert the SD Card. Next, plug in the PSU, THEN the Klipper Host to the 3MS board. The firmware is now flashed.

Get MCU ID

In the terminal, run:

ls /dev/serial/by-id/

Example output:

usb-Klipper_stm32f103xe_33FFD1054746333809650557-if00
usb-Prusa_Research__prusa3d.com__Original_Prusa_i3_MK3_xxx-if00

In this case, the first line is the 3MS, and the second line is the 3D printer. Now that you know the id of the 3MS MCU, copy it and save it to a file:

cd ~ && echo "<your-mcu-id>" >> mcu.txt 

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