0utc45t

Thanks for your reply. I'm aware that I should get those commands enabled for the color mixing to work. I'm also aware that I can't break the printer by trying to print object with commands not supported by the printer. As I wrote, printer just ignores the color mixing commands in the gcode file and the object is printed with just one color. I do not know if my printer works with a recent Marlin firmware. I do not know how to compile the Lotmaxx provided buildroot. (It does not look like Marlin buildroot looks like.) I'll try to break down the questions below... 1. Can I install a Marlin 2.1.2.1 firmware in the printer and will it work? 2. Or do I have to use older Marlin firmware, if the 2.1.2.1 is not suitable for my printer? Which? 3. If Marlin firmware is not gonna work and I have to use the original Lotmaxx firmware buildroot, how do I compile it?

Hi, I bought the printer quite some time ago... recently I changed the hotend from the original Y shaped dual extruder (2 cold ends, one nozzle) to a geeetech mixing hotend. I've been printing with it, but unable to get blending of two filaments (for gradient/mixed color) working. Slicer does the job, gcode shows like it should work, but the printer uses only first stepper motor/filament. I believe it's because the original firmware does not include those settings needed for mixing filaments. (atleast define MIXING_EXTRUDER) I looked at the Marlin firmware buildroot and it became obvious that I could not get all the hardware related settings correct at the first try and might brick/break the printer. I have not compiled printer firmwares before, only some linux software and kernels... So, I contacted Lotmaxx about the issue and they provided me with a link to the firmware. https://github.com/sm3dp/firmware Which does not look identical to a Marlin buildroot at all. The printer answers to M115 command as follows: SENDING:M115 FIRMWARE_NAME:Marlin V1; Sprinter/grbl mashup for gen6 FIRMWARE_URL:http://www.mendel-parts.com PROTOCOL_VERSION:1.0 MACHINE_TYPE:Mendel EXTRUDER_COUNT:3 Can I compile a recent Marlin firmware for my printer? Or should I just get the Lotmaxx provided firmware compiled again with required changes to the configurations? Instructions needed for both cases... BR, 0utc45t