@Aerius LOL... I did the same thing.... one of my 805bb got damaged some how while I was removing the pot so I just removed all the electronics and used it as the second servo in the waist of my inMoov....
Hey guys, I've just started building the shoulders of my Inmoov and im having some difficultly understanding the motor mods. I can understand why the pot is mounted outside and i see the need for rotation greater than 180 degrees but why the reversed polarity for one shoulder? is this just for the sake of uniform programming of the motor movements or am i missing something bigger here? couldnt i just program it with reversed values? I know its not very difficult to reverse 2 connections but I would hate to implement something i dont even understand. I'm probably just not comprehending the instruction very well so any help would be great.
@WilliamK No, not just for uniform programming... If you don't reverse the wires in the pots of the servos in the right shoulder the gearbox(s) will spin but won't ever stop. This is because the gearbox is moving in the opposite direction the pot needs in order to meet its target angle and stop... Try it you will see what I mean... The arms are mirror images of each other.... To summarize 3 servos in the right shoulder need their pot wires reversed for their gearboxes to rotate the potentiometer in the correct direction... No amount of programming will compensate for this...
Yep, that makes perfect sense. I probably should have trusted the instruction and im sure it would have seemed cleared once the parts were together. I can move forward with a little more confidence now. Big thanks for the help.
@Aerius LOL... I did the same thing.... one of my 805bb got damaged some how while I was removing the pot so I just removed all the electronics and used it as the second servo in the waist of my inMoov....
Hey guys, I've just started building the shoulders of my Inmoov and im having some difficultly understanding the motor mods. I can understand why the pot is mounted outside and i see the need for rotation greater than 180 degrees but why the reversed polarity for one shoulder? is this just for the sake of uniform programming of the motor movements or am i missing something bigger here? couldnt i just program it with reversed values? I know its not very difficult to reverse 2 connections but I would hate to implement something i dont even understand. I'm probably just not comprehending the instruction very well so any help would be great.
@WilliamK No, not just for uniform programming... If you don't reverse the wires in the pots of the servos in the right shoulder the gearbox(s) will spin but won't ever stop. This is because the gearbox is moving in the opposite direction the pot needs in order to meet its target angle and stop... Try it you will see what I mean... The arms are mirror images of each other.... To summarize 3 servos in the right shoulder need their pot wires reversed for their gearboxes to rotate the potentiometer in the correct direction... No amount of programming will compensate for this...
Yep, that makes perfect sense. I probably should have trusted the instruction and im sure it would have seemed cleared once the parts were together. I can move forward with a little more confidence now. Big thanks for the help.