uStepper Robot Arm Wrist Joints

I like the design of the uStepper Robotic Arm so much I have started to build one. Unfortunately for my preference, it has limited wrist movement.

I use a 28BYJ-48 12V stepper for the angular wrist movement and a micro geared stepper for the rotational movement..

This is only a prototype for now, basically proof of concept. The only down side is the 28BYJ stepper looses position when the power is removed. I am going to look into using some type of gear reduction for the angular movement