Hello
Funny, watching EEVblog #500 where Dave is complaining about not been able
to re-program the Atmel micro!. Since I am a Atmel user, I admit Avr Studio is bloated but
nevertheless reading a HEX file should not be a problem.
My opinion is, the only reason this issue is occuring with the HEX file
is because the file is:
1) File is corrupt
2) Is not standard HEX file, it's in a different format.
I don't know which model Makerbot you have, I was going to find the firmware and
try it myself to see if I get the same error (I don't own a Makerbot).
Peter