First Prototype
Machining processes:
3D printing for rapid prototyping
Laser cutting of acrylic
Sewing and hot gluing to attach Velcro strap for hand interface
Hack sawing for wooden dowels
What didn’t work:
Our wedge activation device was not held in place well
Cams were not “grippy” enough to hold ropes
Motion of the links was not smooth
Velcro strap was not secure
Figure 67: The first prototype complete with 3D printed base plate, cams, and wedge activator, acrylic links, wooden dowels, Velcro strap, and string thumb loop.
Figure 78: Close up view of the laser cut acrylic, press fit to the 3D printed piece with a woodel dowel.