A follow up to a previous post, this is a listing of all the chinese 3D printer motherboards I could find, along with their CPU. I’m noticing that STM32 is overwhelmingly the most popular choice. Additionally, the STM32F103ZET6 seems to be the most popular selected CPU as well. Considering alternate firmware options for these boards, since Marlin is not designed for a colour TFT display with touch UI, I am wondering whether a new fork is a better option, rather than trying to bend Marlin 2.0 to fit.
CPU Type
Processor
- Printer/Motherboard Model – Firmware info
STM32F1 (ARM Cortex-M3)
STM32F103C8T6 (64K 128K flash)
- Malyan M200 – Proprietary (marlin based)
STM32F103ZET6 (512K flash)
- CBD3D ChiTu F / Red Rabbit/ Red Rabbit Mini – Proprietary firmware
- MKS Robin / Robin Lite – MKS Proprietary firmware
- Unnamed motherboard marked “Dlion by Enmaker” – Dlion firmware: open source (based off Marlin 1.0)
- JGAurora A5S/A1 – open source (based of Dlion)
STM32F103VET6 (512K flash)
STM32F107VCT6 (256K flash)
STM32F103RCT6 (256K flash)
- XVico Pioneer X3 – Dlion firmware: open source (based off Marlin 1.0)
STM32F1 unidentified
- “Eryone” – Marlin 1.1.9 ported to 32bit
STM32F4 (ARM Cortex-M4)
STM32F407ZGT6
Looking into getting the STM32F103 firmware off my XViCO board. I have an ST Nucleo board, which has an ST-Link built-in, so it should be possible.
Note that I can find identical copies of my board and screen on AliExpress by searching for “stm32f103 3d”. One of the buyers on store “3D Super Shop” even complains that the board came with “XViCO firmware”.
These mysteries are so interesting! I wonder what the relationship is between the different companies… good luck!