how to use blender to port a 3d print for votv (0.7.0)

i reccomend to watch the video at like x2 or x1.5 speed for the boring bits, im a bit sluggish time stamp 00:00 intro 00:13 omega basic starting setup 01:26 combine texture 05:46 add collisions 10:17 scale 12:17 export 13:27 in game votv printer 14:46 rescaling/editing prints 16:00 posing your model, if it comes rigged