gjuju / kobra-updated

Archived

I've archived this project due to having switched to Klipper.

Kobra-updated

I've been bringing the firmware for the Kobra up to date with Marlin as much as possible, however this has now reached the point where people with more knowledge on the subject need to go over it. It compiles and runs on my Kobra successfully, but I lack the experience to make the final changes to HAL and take any other changes out of Marlin and into the lib folder so new Marlin changes can simply be dropped in.

I've added a branch where I'm working on a python scripts to automatically make the needed changes to a clean Marlin download before compiling, but that's still in early stages.

Please note

It compiles according to the instructions given here https://www.reddit.com/r/anycubic/comments/y2waxu/tutorial_how_to_build_anycubic_marlin_source_code/

I've set the F_CPU value in uVision after making the firmware print out the value together with the other stored values and copying it from Pronterface, I have no idea if this value is the same for all Kobra's, so if it doesn't work, just remove the value from uVision, compile and flash, and read out the value when sending M503.

Any tuned values (like PiD) in configuration will be set to my printer's as it's a pain having to redo them when you're flashing new firmware all the time.

Also note that the configuration is currently set to use DGUS Reloaded as that is what I've flashed my lcd with, but if you're using the Kobra stock lcd firmware, you can select the Vyper lcd ui as it is almost identical to Kobra's.

Warning

Unfortunately I cannot give any promises or guarantees, I just have my one printer to try things on, so I cannot test for any other circumstances or variables. Which means that you are fully responsible for what happens when using this firmware.

To do

• Fix menu getting stuck after auto-leveling. For now just press the middle of the screen when it's done.
• Make MarlinSerial work
• Completely redo kobra extui and dgus so it makes sense
• Find a way to get rid of having to use uVision/ARMCC to compile

Credits

The following sources have been invaluable

• https://github.com/jojos38/anycubic-kobra-improved-firmware
• https://github.com/shadow578/Marlin-H32