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README.md

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pcr_control

Fourth year undergraduate thesis

System setup

Set up physical robot

Checklist:

  • Ensure everything is plugged in and connections are good
  • Switch on Aurora
  • Ensure E-stop is in the "on" position
  • Ensure the workspace (marked in green) is clear
  • Begin with the end effector in the state where both arms are fully outstretched. Manually tigheten each motor to ensure the tendons are taught
  • Check that all tendons are properly threaded through pulleys

Set up digital environment

source venv/bin/activate 
./scripts/setup.sh

Calibrate Aurora

python scripts/calibrate_aurora.py

Once the calibration script is running:

  1. Move the tracker to position (1) with the cable pointing in the positive y direction (as indicated on the table)
  2. Press 'r' to take a reading. Take 10+ per position. Once you've taken measurements in position (1) press n to save the point.
  3. Repeat steps 1 and 2 in position (2) followed by position (3)

The transformation is saved under 'data/rotation.npy' and 'data/translation.npy'. Place the tracker in its position on the robot's end effector.