You may get an error message when exporting a model to FSX:-
This has been a problem since the early days of FS modelling: if you have scaled objects up or down in size while building them, the exporter is going to cough. The model might export to FSX but animations won't work however many times you redo the animation, Animation Manager tagging or visibility attachpoints. It just sits lifeless in the sim.
Many times the answer is to select the objects and reset scale:-
You may have to click on this several times to get a result!
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If resetting scale does not work
Unfortunately there are times when this is not enough: despite resetting scale until your mouse is overheating, the OBED scale error warning still pops up. There is no escaping the nuclear option now – Reset XForm. This is an irreversible process, so save your work before doing this.
All links between objects must be Unlinked – prop discs to prop spinners, wheels to undercarriage oleos to wheelwells etc. Then select everything, go to Tools and click Reset XForm, then the Reset Selected button:-
This places an XForm modifier on top of each object's stack in the Modify tab. Right-click on each object's stack in turn and Collapse All. The result is Gmax now has an accurate handle on each object's actual size (and the object's pivot is aligned to World): any scaling error is gone for good.
You now rebuild the model's hierarchy and will almost certainly have to rebuild some animations - realigning each animated object's pivot to suit will often be enough.
This is a royal pain to do if you have built and animated an entire model before discovering the OBED scaling error, so your practise should always be:–
Export early, export often, test your work in the sim as you go along!!
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