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	<title>Real-Time Physics Simulation Forum</title>
	
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	<updated>2022-04-05T15:00:40+00:00</updated>

	<author><name><![CDATA[Real-Time Physics Simulation Forum]]></name></author>
	<id>https://pybullet.org/Bullet/phpBB3/app.php/feed/topic/13413</id>

		<entry>
		<author><name><![CDATA[aled96]]></name></author>
		<updated>2022-04-05T15:00:40+00:00</updated>

		<published>2022-04-05T15:00:40+00:00</published>
		<id>https://pybullet.org/Bullet/phpBB3/viewtopic.php?p=43971#p43971</id>
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		<title type="html"><![CDATA[Floating robot not stiff]]></title>

		
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Hi, <br>I have a legged robot loaded from URDF with useFixedBase set to 0. The problem is that the robot is collapsing on itself, without being stiff enough to stay vertical (considering that it is statically stable).<br><br>What this can be about ?<br><br>This is how I am loading the model:<br><div class="codebox"><p>Code: </p><pre><code>self.robot = pybullet.loadURDF("file.urdf",                                init_pos,                                useFixedBase=0,                                flags=pybullet.URDF_USE_INERTIA_FROM_FILE)</code></pre></div>Then I control it  with `pybullet.setJointMotorControlArray` moving the joints to a target configuration.<br><br>Thank you for the help!<p>Statistics: Posted by <a href="https://pybullet.org/Bullet/phpBB3/memberlist.php?mode=viewprofile&amp;u=14239">aled96</a> — Tue Apr 05, 2022 3:00 pm</p><hr />
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