I bought this board/endstop kit https://ultimachine.com/products/rambo-1-4?_pos=1&_sid=14d6aa83e&_ss=r due to it not being available in the shop at the time of order.
Trying to flash this Marlin version https://github.com/tormodhau/Marlin-MPCNC/tree/MPCNC_Rambo_T8_16T_LCD with a bare board connected via USB and keep getting the below error:
Sketch uses 107760 bytes (42%) of program storage space. Maximum is 253952 bytes.
Global variables use 4518 bytes (55%) of dynamic memory, leaving 3674 bytes for local variables. Maximum is 8192 bytes.
An error occurred while uploading the sketch
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_ReceiveMessage(): timeout
avrdude: stk500v2_getsync(): timeout communicating with programmer
My build has 20t pulleys at the moment so I changed the line for steps to 80 80 400 80 but other than that I made no changes to the code.
I assumed USB only would be adequate to power the board for upload but if that’s not the case please advise.