Ummmm... You never want to unplug stepper motors when the bot is powered. He may well have blown some of his logic chips along with the LCD screen. The
other possibility is a short in the X motor harness. He can try powering off the bot, disconnecting the X motor harness from the motherboard, then powering up. If that doesn't help, power down again and unjack and then reseat the ribbon cable for the LCD/keypad/SD card. Unjack and reseat at both ends.
Now a problem with the Rep 2 is that I believe you cannot unjack from the motherboard
just the X stepper motor. So you may just have to unjack all the stepper motors.
MBI went off an made custom harnesses which I'm sure reduced assembly time and reduced
assembly errors, but it did that by trading off post-manufacturing support costs:
harder to diagnose problems, harder for end users to maintain by using off-the-shelf
- Bettendorf Middle SchoolEducator, present
Bettendorf, Iowa · coffeeforthebrain.com
- Ashford UniversitySecondary Education, 1999 - 2003Secondary Education Degree with concentrations in US History, World History, Pyschology, and Economics
- Nova Southeastern UniversityMasters in Educational/Instructional Technology,, 2005 - 2007emphasis on web design
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