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	<title>Real-Time Physics Simulation Forum</title>
	
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	<updated>2022-11-23T13:50:02+00:00</updated>

	<author><name><![CDATA[Real-Time Physics Simulation Forum]]></name></author>
	<id>https://pybullet.org/Bullet/phpBB3/app.php/feed/topic/13501</id>

		<entry>
		<author><name><![CDATA[alinjar]]></name></author>
		<updated>2022-11-23T13:50:02+00:00</updated>

		<published>2022-11-23T13:50:02+00:00</published>
		<id>https://pybullet.org/Bullet/phpBB3/viewtopic.php?p=44171#p44171</id>
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		<title type="html"><![CDATA[Fixed joint in multi-body dynamics simulation]]></title>

		
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Hi, I have imported a URDF of a biped robot into PyBullet. Some rigid bodies in the robot are connected by fixed joints. It is expected that the velocities of the link joined by a fixed joint would be the same. However, it is noticed that they are different in my model.  Kindly let me know the reason for the same and how can I get rid of this.<p>Statistics: Posted by <a href="https://pybullet.org/Bullet/phpBB3/memberlist.php?mode=viewprofile&amp;u=14473">alinjar</a> — Wed Nov 23, 2022 1:50 pm</p><hr />
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