We're working through A LOT currently and request that people be patient whilst waiting for the rest of the Dual Switching Extruder instructions and files.
We're aiming to have them up by the end of the week at the latest, please keep an eye on the build manual page and forum for updates.
When I first installed the arm, everything worked for maybe about 30 minutes. Now, when I power it up, the arm doesn't move at all on power up. If I choose to move the arm to hotend 2, it works just fine, but if I try to move back to 1, it doesn't move.
And now it is dead.
So I got a servo from RC car fortunately, it works fine but opposite way. When I choose 1, it turned left.
How do I can change the direction?