Exported .obj file is different from sketchup object

[crankshaft]

Hmm, I was quite pleased and thought I had successfully created my first item, but when I export it to .obj file for 3d printing on 3dhubs.com, the result is quite different with diagonal cut outs along the walls instead of the solid walls I thought I had created

Any idea what may be the cause ?

Funny thing is 3dhubs says the item has no height and it’s calculated dimensions are: 72.0 × 0.0 × 48.0 mm

[crankshaft]

OK it appears that there may be some problem with exporting as .obj file.

I installed the SLS export through the extension warehouse and everything looks good.

[thomthom]

Either your export was set to flip the YZ axes - or 3dhubs expects Y to be up.