Hi, im making a mod, the mod adds spoiler and lip to LeGran. I succesfully added the part to BeamNG but it seems floating. I looked to Blender, nothing wrong in Blender. What i should do in JBeam? What part i should edit, Nodes or Beams or Triangles?
select the object in blender and press "ctrl+A" and then select the first option which says "location". then export it again. I think this should fix the problem.
It will. You can clearly see in the Blender screnshot that the origin of the mesh is away from the middle of the world
as others have said it could be that issue, seem like a scaling or translation issue. I'd bet if you import that exported .dae it'd look off just like in game.