Windell: Well I powered down the egg-bot last night. Powering it up this am, I have no control voltage to the steppers or the pen servo. No matter the location of the pot, min, midway max. Could all the erratic behavior yesterday been the pot or the ebb starting to fail? With failure this morning. The led for 3.3v is lite and usb connection are on and flashing normaly. And the computer is seeing the egg-bot.