Geeetech

totally agree, i run a bank of printers for a living. i don't have time to fart with defective or badly designed boards.

i solved my problem the simple way. i installed a ramps 1.4 and mega 2560. uploaded the firmware with no problem (as usual) and threw the gt2560 in the trash. adjusted the esteps as needed and printing just fine.

there is no reason for something so simple to be so hard.

ramps always works.

the new board is not bricked, i just cant get the a10 firmware to upload to it using ANY method

the card is not in the printer

my original board went crazy after a month. weird movements, clicking sounds, etc. replaced all drivers and motors. no difference.

bought a new gt2560v2. it had the 10m firmware on it. all movements are fine but extruder will not run no matter where you set the mixer.

got the a10 firmware for ...

actually i do not want to mix

i simply want to print the first 2mm of a print one color and the next 2mm another color

i have tried every possible variation i can in the mixer with zero results

anyone know how?

thanks in advance