I have just got the export script/plugin for my 3ds max. But there is no tutorial or manual on how to use it. I just doing an experiment with a turbofan engine. I have got the fan blades to spinn with the engine rpm, but i had to go into the obj file and add numbers missing in the dataref sent from 3dmax. The fan blades also turns 90 degree so they are facing upwards insted of staying parallel to the nachelle. Don't know what is doing this. When i export without dataref it shows up like it should. So maybe an experiencd in this field could do a tutorial on how to use this plugin. Thanks Rolf