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The DH parameters of the UR5

Posted: 23 Apr 2022, 17:14
by ccheng292
I used the DH extract tool for UR5 in V-rep. I get the following result:
-----------------------------------------------------------
Between 'UR5_joint1#0' and 'UR5_joint2#0':
d=0.0661
theta=0.1
a=0.0050
alpha=-90.0
-----------------------------------------------------------
But for UR5, the standard DH parametersis "d=0.089159, a=0, alpha=pi/2 ", the standard DH parameters is "d=0.089159, a=0, alpha=0", Let's just talk about alpha, why the alpha got from extractor is -pi/2?

Re: The DH parameters of the UR5

Posted: 24 Mar 2023, 04:28
by SevenTRI
Excuse me, have you solved it?

Re: The DH parameters of the UR5

Posted: 06 Sep 2023, 03:47
by jiaqiYu
I also encountered this issue. The DH parameters extracted by the DH extractor in version 4.5 do not match the actual situation. The official said that this tool is broken, but it seems to have not been repaired

Re: The DH parameters of the UR5

Posted: 08 Sep 2023, 13:35
by coppelia
Hello,

that add-on should have been fixed in release V4.5. It could of course be that the UR5 model has some discrepancies in regards to the real robot. Do you have the specs at hand, including a CAD model (also rigid)?

Cheers