I'm trying to teach myself mechanism. I have a four arm mechnism in which I have redefined the assembly as pin joints. I have selected axes to align and selected faces. I noticed the default face alignment seems to be align, with no option for mate. anyway, my assembly regenerates fine.
Then I start mechanism, and it looks fine, but as soon as I select drag, some of the aligned faces invert, causing incorrect assembly. If I cancel Mechanism, and do a regen, the parts line up properly again.
Has anyone encountered this and do you know what I'm doing wrong?