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2018-03-18 13:55:30 -0500 asked a question Running Turtlebot minimal.launch on a PC, no battery state.

Running Turtlebot minimal.launch on a PC, no battery state. Trying to connect to a kobuki, but with a PC rather than a l

2018-03-16 02:34:01 -0500 marked best answer Static Map corner at origin for Navigation Stack

Going through the tutorials for the ROS Navigation stack, using a static map generated through gmapping.

This is done on a simulation. When to robot is initialized, it is located at the origin. I perform gmapping and the map is generated, centered around origin.

However, after launching the navigation stack, following the tutorial, the static map seems to have the corner located at origin, and thus leads to

[ WARN] [1521163803.387421877, 5297.630000000]: The origin for the sensor at (-0.10, 0.03) is out of map bounds. So, the costmap cannot raytrace for it.

image description image description

Note: If i add the map through map_server, and visualize it through RVIZ, then the map is properly centered with the center of the map on origin. I am vaguely aware about the ability to add offsets to the static map. But not too clear on how, and I feel as though static offsets arn't an ideal solution, if the size of the map can change.

2018-03-15 22:35:50 -0500 answered a question Static Map corner at origin for Navigation Stack

Just solved the issue. The navigation tutorial directs you to use the pgm (image file) of the map. Using the YAML file i

2018-03-15 20:36:07 -0500 asked a question Static Map corner at origin for Navigation Stack

Static Map corner at origin for Navigation Stack Going through the tutorials for the ROS Navigation stack, using a stati

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2017-11-20 02:29:39 -0500 marked best answer ROS package for 4-DOF Arm

I am looking at making my own 4 DOF arm. I see that there was a package "move_arm" that handled motion planning and servo control for an arm, that was made for ROS Groovy.

Would there be any modern options that exist? If not, where should I get started when trying to make something that handles the IK and motion planner?

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2017-11-20 02:29:38 -0500 commented answer ROS package for 4-DOF Arm

This looks very promising and a great place to start! Thanks a ton! I'll definitely continue reading through it now.

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2017-11-20 00:28:36 -0500 asked a question ROS package for 4-DOF Arm

ROS package for 4-DOF Arm I am looking at making my own 4 DOF arm. I see that there was a package "move_arm" that handle

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2017-06-12 11:10:43 -0500 asked a question Messages between Nodes and Nodelets

Messages between Nodes and Nodelets I am curious as to the way messages are sent if it is being published from a Node, a

2017-06-12 11:10:43 -0500 asked a question Interaction between Node and Nodelets

Interaction between Node and Nodelets I am curious as to the way messages are sent if it is being published from a Node,