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Tutorial for simple urdf models?

asked 2012-10-14 16:06:08 -0500

cosmic_cow gravatar image

I'm trying to model a simple hammer for use in Gazebo; I'm using ROS Fuerte in Ubuntu 12.04. It doesn't have to be terribly complicated, it's just to do some grasping stuff with the NASA Robonaut r2 model (which runs just fine). I've tried modeling a simple rectangle with a static joint to a cylinder in URDF, but I can't get anything to spawn. It either says it can't communicate or crashes Gazebo outright. I feel like I'm stumbling in the dark; there's precious little I can find for how to do object modeling for Gazebo, and any help would be greatly appreciated.

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answered 2012-10-16 22:28:06 -0500

ThomasK gravatar image

There's a hammer, wrench and drill in the new gazebo models database: https://bitbucket.org/osrf/gazebomodels (wiki: http://gazebosim.org/wiki/Modeldatabase)

For making models take a look at the beginner's section in the tutorials: http://gazebosim.org/wiki/Tutorials ("Make a Model", "Importing a Mesh" and maybe also "Building a World")

Let me ask you a question as well though: "it's just to do some grasping stuff with the NASA Robonaut r2 model (which runs just fine)"
You're able to perform manipulation with NASA's R2 model? The last time I tried the R2 model (and it hasn't changed since then) it was unusable for anything but looking at it. The impedance controller was not usable for any form of precise arm navigation and when trying to get the arm stack working it failed due to collisions in the collision model (there's a post on ros answers about the issue).

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That vote should put you over the karma threshold for voting. Do what I did and use your limited votes on the best answers and question to help seed healthy community participation.

asomerville gravatar imageasomerville ( 2012-11-30 20:41:02 -0500 )edit
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Asked: 2012-10-14 16:06:08 -0500

Seen: 665 times

Last updated: Oct 16 '12