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Research

This is the code used in the paper:

Hardware Setting

  • Sawyer 7-DOF arm (from now on called Nordri)
  • 2 Kinects
  • 2 GelSight Sensors

Software Dependencies

The following packages need to be installed:

Run code

cd  ~/ros_ws
./nordri.sh
roslaunch wsg_50_driver wsg_50_tcp_script.launch

cd  ~/ros_ws
./nordri.sh
rosrun kinect2_bridge kinect2_bridge

cd  ~/ros_ws
./nordri.sh
roslaunch manu_sawyer gelsightA_driver.launch

cd  ~/ros_ws
./nordri.sh
roslaunch manu_sawyer gelsightB_driver.launch

HOW TO COLLECT DATA:

  • Turn on the robot, gripper, and GelSights (A first and then B, always)
  • open run_experiment_nordri.py and select the name variable (approx. line 62) so that it corresponds to the object that you what to use.
  • open run_experiment_nordri.py and set the lower_bound_table_dist variable (approx. line 57) to an appropriate value. Taller objects will require about 0.05 while smaller can be set as low as 0.015.
  • Run run_experiment_nordri.py in intera mode
  • Follow the instructions printed
cd  ~/ros_ws
./nordri.sh
rosrun manu_sawyer run_experiment_nordri.py

Common problems/errors and fixes:

Problem: How to end the script?
Solution: Run killall -9 python in a new terminal, and delete the two last files in the Data directory, if applicable.

Problem: The GelSightA topics stops, i.e. the terminal where the GelSightA launch file was run gives an error.
Solution: End the script run_experiment_nordri.py and restart the GelSightA. Delete the effected files in the Data directory. Then rerun run_experiment_nordri.py.