Quote Originally Posted by CalifDan View Post
If I understand the above correctly, you can't do ABL without a computer connection? I understood that one would be necessary to set up the ABL, but thought that once set up, it could all run from the startup code with the computer disconnected. If the computer connection is required while printing, then ABL is probably off the table for me. I can't afford to have my computer sitting at the printer all day. That will be too bad too, as I already invested in the component parts to make it happen.
Oh, I could be wrong about how the commands are issued. I assumed people were doing the extra commands involved manually through host software. I don't have ABL on my printer - I'm just familiar with the designs of the RAMPS and MEGA2560 boards. What you could do is wire in a small 5V power supply (like an unused wall adapter) as a 5V source for the servo. I'd have to look into how that is done. FYI - details on the analysis of the MEGA2560 regulator limitations is discussed in my build thread at http://3dprintboard.com/showthread.p...ll=1#post28854. A discussion follows after that, including a link into the reprap wiki where this is also discussed.