Exo_Arm mk III ideas

I found a few window motors on Amazon the other day and thought I could use these to make the Exo_Arm more compact and add a shoulder joint.

By adding a 2nd motor controller I would have 3 free motor drive channels witch should be enough to make a working shoulder in addition to the elbow joint.

My idea is to mount the motors on a kind of backpack and use break cables from a bicycle to connect the motors to the joints them selves. I’m assuming since the motors are smaller the power output will be smaller as well but, with more joints being assisted, it will make the Exo_Arm more effective overall. Also, the Myo sensors have been a bit too temperamental to be useful so I’ll be removing those and going with either Force Sensitive Resistors (FSRs) or hall effect sensors for the controller input.