3D Printed Powered Exoskeleton Hands (Upgrade v2)

Finally got around to improving the size of this powered exoskeleton hand, is now a lot less heavy and mobile. There are still some design issues with this exoskeleton hand in that fingers don't move from completely closed to open it more so just moves the fingers around. I don't want to give people the impression that this can completely repair the movement of someones hand because it cannot as it is currently designed. I hope other people take this design further as my modelling skills aren't what they use to be.

Good luck to all with this one, also the motors I'm using aren't strong enough to break my fingers and I believe it would be very hard to find motors that small that could break anyones fingers.

DC motors description > 30RPM or 60RPM Mini N20 DC Metal Gear Motor
Example: https://www.ebay.com.au/itm/6-12V-300-600-30RPM-Mini-DC-Metal-Gear-Motor-Gearwheel-Shaft-Diameter-N20-TOP/191977349889?hash=item2cb2bde301:m:mQwibMb0uJEItZMhfW2D6AQ
Not sure if 12v dc motor will work with an Arduino that's why I went with 6v motor.
You should be able to buy from eBay or Amazon.

The basic Arduino code is also attached, this will open and close all of the motors.