SolidWorks->urdf exporter strange behavior when click "Preview and Export..."

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Despite being an old thread, this issue seems to be reappearing. I've spent quite a lot of time researching an answer, so I would like to leave a solution/workaround here. It should be noted that it's heavily based on Ari Kapusta's comment in the SW2URDF repository on Bitbucket.

In essence it seems that the automatic generation of joints fails without giving any warning or error. Luckily you can define the joints yourself and effectively skip this part of the process. You can refer to the original issue with a solution here or for more detailed information check my blog post where I've described the whole process in detail.

Hope this saves you the time and troubles.

i had the same problem and i solved it. So why the exporter just stopped ? this is because the exporter can not create for example the axis of a revolute joint when you leave the option "automatically generate". In my case, i had defined fully 3 mates for the realated object, so the exporter could not find the degree of freedom to assume that the part can revolve( be free) around an axis. Hope this helps

Stephen, I'm having a similar problem with my own assembly. The exporter establishes a few origins and axes, and then just quits working. I've noticed that at the same time it fixes parts in Solidworks that weren't fixed before, which naturally produces mate errors. I've tried paring back my assembly, suppressing parts, and if I go back far enough the export works. Any idea what I can try next?

Hello,

I have the same problems with my CAD data for the Yaskawa Motoman SDA 10D.

I am using the latest version of the SW2URDF-Exporter (downloaded today).

I found that similar as in Peter Galambos' MillingMachine, the parts of the SDA 10D are marked fixed and no Mates are defined. Does this cause the problem?

Is there a solution to this issue? Thanks!