Topic: SD2 heated bed upgrade problems.
I am looking for some assistance with the upgrade of my Solidoodle 2. I have the older version which lacked the bed heater and enclosure, and came with acrylic bed and the 65 Watt power supply brick. I upgraded the power supply to a modified 450W ATX unit, and that seems to have worked fine.
My second round of modifications has been the print bed. Luckily for me, the aluminum bed and PCB heater from one of the Geeetech models fits the funky three-point adjusters perfectly. I installed the bed components, and ran all six (power, ground, and thermistor) wires out to the controller. After removing the board, I installed connectors for the power and ground lines, then connected everything up. I powered up the printer, started Soliprint, and connected. All of the original functions seem to operate normally. The nozzle heated up, the motors all move, but the bed wouldn't heat or show up in the config. I figured there was something in the Slic3r settings, so I looked around and found the bed temperature default and changed it from 0C to 50C. I loaded a model, the config file, and told the printer to heat. Everything except the bed worked fine.
I am clearly missing something, but Solidoodle doesn't appear to have anticipated anyone bothering to upgrade. The board has the control transistor for the bed heater installed, just like the nozzle heater next to it. It does not appear to be a problem with poor connections.