3d Modeling software glitch


I’m using autodesk 3dStudioMax 2018 to create a model. Since 3dsMax won’t export STL files, have to export as an object, then open in 123Design to export as an STL for Flux Studio.

2 things happen, 1, the object is about 1/10th the size it was in Max and when I print, it doesn’t print the model at all, some sort of outline. Is there an elegant or easy way to get my models from 3dsMax to Flux Studio?