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Research

A lot of research had to be done so that the technical specifications of the UXA-90 robot could be documented that were needed for development. The initial documentation that came with the robots was sparse on exact operating details of the robot. As such, initial research was done in operating proceedures of the robot and documented on the training page.

Motor Ranges

To document the motor ranges, A webapp was created to select motors and control them with a slider, similar to what is in the app. The following data about the motors was then determined:

  • Minimum
  • Maximum
  • Default position
Motor ID Motion Minimum Default Maximum Notes
0 Left foot tilt 127 115 140 Inwards to outwards
1 Right foot tilt 127 110 140 Outwards to inwards
2 Left foot 127 77 175 Down to up
3 Right foot 127 78 175 Up to down
4 Left knee 204 77 204 Backwards to forwards
5 Right knee 50 50 180 Forwards to backwards
6 Left leg kick 127     Forwards to backwards
7 Right leg kick 127     Backwards to forwards
8 Left leg outward 127     Inwards to outwards
9 Right leg outward 127     Outwards to inwards
10 Left leg rotate 127     Outwards to inwards
11 Right leg rotate 127     Inwards to outwards
12 Left arm rotate hole 180 10 254 10 is straight up
13 Right arm rotate whole 180 1 254 254 is straight up
14 Left arm rotate out 115 1 120 115 is up
15 Right arm rotate out 138 130 254 254 is up
16 Left arm rotate in 120 1 254  
17 Right arm rotate in 128 1 254  
18 Left elbow 48 48 190 190 is up
19 Right elbow 210 65 210 210 is up
22 Hip rotate 127 90 170 127 is right
23 Head yaw        
24 Head pitch   70 160