Convert .3ds to .fbx without losing scale I'm trying to convert a bunch of .3ds files from a game to .fbx, so that I can import then into Unreal Engine. After the import into Unreal Engine all .fbx files have different sizes though.

Currently I convert my .3ds files as follows (images of the taken steps: https://imgur.com/a/4N86Xzl):


I start a new file, delete default box and import the .3ds
I hit &#9095; Altg and &#9095; Altr such that the thing looks normal.
I press &#9096; Ctrl&#8679; Shift&#9095; Altc and select geometry => origin. I actually would like to move the mesh up the y-axis, such that the the bottom is on top of the origin. But, I don't know how to do this. How do I do this?
I remove all boxes I compressed in step 2.
I go to export to .fbx, set smoothing to 'face' and select 'mesh'.
I import the created .fbx into Unreal v4.22, and some objects have similar size, while others are way bigger when imported.


How do I ensure that these objects have equal size? In the game's official map editor there's no problem whatsoever with sizes. So I don't really understand why a conversion to .fbx is messing with the scales.
Blender 3ds importer is weak or format is dead.


Try native FBX Converter. It's free, can explore, view and convert in batch 3ds, dae, dxf, fbx (old version for example) and obj to fbx up to 2013.