When uploading the firmware for my single head printer I got a Marlin.ino file of 117Kb and loaded it via the arduino to my printer and all worked fine.
I have now rebuild the printer to a dual head and trying again to upload the dual head (M1-V1.4-H2) firmware.
This time I get a Marlin.ino file of only 2K ( it seems to small ) and get a error code on the arduino.
It looks like I don’t get the right firmware anymore from the download page …
The Marlin.ino file from the 1 head version is actually the Language.h file and not the expected one. In the 2 heads version it’s the same as the Marlin.pde file which is normal as it’s the same as in the previous versions.
Thank you for the info.
I could now solve the problem and my printer works with 2 heads
I think it had to do with incorrect unzipping of the downloaded firmware. I unzipped in a new folder and it worked.
