I found an Eshed Robotec Scorbot-ER V+ robot and controller from recycling bin of local school.
Robot had some parts missing, but found them too (one belt tensioner and all of the home limit sensor drums.) Robot is now assembled and seems to be about working.
I soldered a rs232 cable (null modem: ground and two signal wires, with 2+3 pins in the D9 connected together.) D9-D25. Dos based software in Win XP command prompt wasn´t able to communicate with robot but
https://www.intelitekdownloads.com/Software/Robotics/Discontinued/Windows/ER-5_9_Robocell/ can. That is an evaluation version and needs a activation code. Maybe I have to continue using the robot with Hyperterminal a month from now...
At the moment robot is mounted on the control cabinet top cover with three M6 screws.
Robot - 8mm Aluminium plate - Cabinet top cover. Is not-so-sturdy base source for trouble?
Problems encountered so far:
- Axis 1 and 2 -> Worn bearings/gears in the servos. Fast homing (pc control) usually fails, slow homing started by teach pendant usually finishes. Are spare parts available for those gearboxes?
- Axis 2 - if arm is about horizontal, I get error of "IMPACT AX[2]" if trying to move that axis 2 up faster than ca. 38% speed.