Quote
JohnSL
And yes, you have to follow the same steps as it seems the Printrboard doesn't have a bootloader that would allow you to download the firmware directly from the Arduino IDE.
I was screwing around for hours trying to get the DFU thingy to work on my mac. Finally I got really pissed and tried to upload from arduino IDE anyway and behold, it worked :)
Unfortunately I was so tired and went to bed afterwards so I don´t remember what of all the things I tried made it work. I added a hardware/teensy folder and it was some mucking about getting the right combo of versions of the files/folders in there or something.