Aparently not a solid form?

Polynechramorph

And here in V8

Dave R

I wonder if the scaling has caused you some issues. The definitions of the components are at different scales. In your V13 as I downloaded it, the main bar component measures 17800mm long overall. It is scaled up from the original size. Component #2 is also scaled up from its original size. Their component definitions were created when those components were correctly sized. The other four component definitions were created at this scaled up size. Perhaps the IGS file shows the components at their definition-defined sizes?

The fix at this stage would be to correct the scale of the entire model--scale back down to life size--then explode the four components that need their definitions corrected and make new components of them.

This scale thing is another reason I use the process I've described when working on small components. It avoids this problem altogether.

Polynechramorph

Thank you all very much for all your help! I've manged to create a file that I can export and use and am now with a very much altered design in the prototyping stage.
This thread can be closed now.

afnanfahmi

hi, can u guys check my model, mine also does not contain solid elements, it said something wrong with the surface border, hope anyone could repair it for me

WL Wax.skp

TIG

You have some convoluted intersecting edges/faces at one internal corner.
I found that deleting the geometry relating to it and the two 'spikes', then adding one new edge back in made it a solid...
It's easier if you use Monochrome mode and un-smooth all of the edges...

afnanfahmi

thanks man, thanks for the monochrome tips too