Hello everybody.
I have done a Rig in Blender and exported this to UDK3 with the ase - exporter. The movement works. But the pistons don’t fit as you can see on the pictures. For the rig I used 2 empties and a child constraint. The pistons are childs of the wheel. The new blender allows to use constraints with the fbx - exporter if you want to export to UDK4. Would this animation work?
Yes it does work. The UDK4 Game engine is free now. After I downloaded it, I have tried out my animation. It was super easy and works fine. It was done with the fbx-exporter and Blender 273a. For me it looks as mechanical rigging is a lot easier now.