Zoom Extent

[Alastair]

Hi, Hope somebody can help.

I recently drew up a house and used a DWG as the template to help me position opening for windows, doors, and the roof. I do believe that the imported drawing was maybe corrupt. Anyway got rid of it but still believe that there must be some little insect left behind on Layer 1. The house is built but when trying to zoom in and out the model just disappears and is then found as the tiniest little thing so far away. Very difficult to get it back and once zoomed in it then just disappears again. Hope somebody can help in this pain staking issue of mine. Why is it doing this?

Thanks
Alastair

[Box]

The two most common reasons are a tiny bit of geometry a long way from your model or the dwg has it's origin set incorrectly making your model a long way from the SU origin.
One way, Try removing loose geometry by hitting ctrl a (select all) then hold shift and draw a selection box left to right over the house, this should deselect it, now hit delete. This should have removed anything off in the distance. Hit Zoom Extents, if that doesn't work you need to look at the model origin.

[pbacot]

But it could be in a group/component. The same procedure, while editing major groups could find the culprit.

[Wo3Dan]

@alastair said:

Hi, Hope somebody can help.

.......I do believe that the imported drawing was maybe corrupt....

Working with the imported dwg could mean that you modeled far from SketchUp's origin, as mentioned by Box. Import without preserving the drawings origin. This puts it right where SketchUp's origin is.

Also get rid of guides. Having several in your model can also be your "orbit -> vanishing model"- problem.

And once you do have your model on screen as desired, do save that scene. Hitting that scene tab brings your model back if it gets lost again.