fusion2urdf: Missing Joint Origin, can't generate urdf script

[sioldead]

Hello, I am working on creating a URDF file for a prototype robot arm that I assembled in Fusion 360 with STL files. I converted them all to solid bodies which made assembly possible, and I thought that I created my joints as required. However when I try to export the file to a URDF, it gives me an error and says that the first rev joint does not have a joint origin. I tried to create a test assembly and actually used the "Joint Origin" command, and it gave the same error. So far I have found nothing that really answers this problem, so I thought that I would give the forums a try.

I have attached some screenshots of the error message along with the joint and where it is positioned. If there are any more screenshots that I can upload to help out please let me know.

Also please note that this is my first time using Fusion 360 ever, and first time cadding in general in about 8 months. So if this is a very simple fix I apologize, however I really need to figure this out asap. Thank you all.

[BrianEkins]

It certainly doesn't hurt to ask your question here, but this forum is intended for questions about Fusion's programming interface. I think you'll be lucky to find someone with in-depth knowledge about the Fusion2urdf add-in. It uses the API but has a lot of logic inside it that I don't know anything about. You could possibly file an issue on the GitHub page for the add-in but it looks like it's not actively being developed any longer.

[storeyp]

Hi @sioldead is this still a problem for you? I see I'm joining the conversation a month late.
If so, could you send the .f3d file? (File > Export). We experimented with this add-in a year or two ago, so the screenshots don't immediately spark a memory for me of the problem, but I can try a few things my end.

Out of interest, what's your end goal for getting the URDF files out? Is it for a ROS application or something else?

[sioldead]

Hey, I managed to figure out how to create the script. I cant really say what specifically I changed in my design, as I was messing around with a few different settings and trials, and it ended up working. I can now repeat it no problem too which is great. As for the application, yes the end goal was to use the URDF for a ROS based project that I am working on. Thank you for the reply.

[rulshi55]

We have to follow specific design practices to get the fusion to URDF  plugin working,
We should mention at least one component as base_link , and setting up the origin and orientation as ROS /Gazebo coordinate system is different from the Fusion360 XYZ, You can refer to this link to get more clarity and easy steps for the same .