I am trying to do some fillet welds on the spokes of a handwheel and am having a hard time doing what I believe should be a fairly easy task. I need it to show on my drawing as a fillet weld so that is why I am not using the weld bead. I couldn't get that to work either on these parts. I keep getting an error saying parts need to be cylindrical or planar which is not making much sense. If someone could please explain the best way for me to accomplish this I would appreciate it.

This image is the edges i need to show weld.