Import woes

berkeley_spencer

Hi All,

I have been trying to import a model of an R1 engine from GrabCad, i can open it and spin it round etc, but when i try to add it to an assembly it only picks up some of the random parts that make up the assembly, I've tried importing it as a flattened assembly but it still wont work.

Please help
Regards
Bart 

brucebartlett

You could use the thicken command to turn surfaces into parts

nav

Hi @berkeley_spencer does the model you are trying to import has surfaces ? verify this as OS assemblies does not recognise surfaces.

berkeley_spencer

Hi Nav,
Yes it does have surfaces unfortunately... i had the same with a bucket seat i was trying to use too. do you know of a fix for this?
Maybe you can convert the surfaces, or re-draw them somehow.

Any help would be gratefully received.

Regards
Bart 

andrew_troup

@berkeley_spencer

Some recent discussion on this forum on this topic - 
here's one which might help
https://forum.onshape.com/discussion/1787/i-have-an-stp-file-that-i-imported-many-surfaces-zero-parts-this-prevents-making-drawings-no

brucebartlett

You could use the thicken command to turn surfaces into parts

berkeley_spencer

Thanks for the help everyone... so now i have worked out how to thicken the surfaces which works great, and now i have a lot of parts instead of surfaces, but now when I import into an assembly, all the parts of the seat move individually, can i flatten all of these parts into 1 single part? 

andrew_troup

As long as they touch along more than a single edge, you should be able to combine the parts using a "Boolean" add operation.
If you have problems, it may be necessary to offset adjacent faces towards each other. MCAD modellers like Onshape do not tolerate "zero thickness geometry"
(in this context, geometry seems to mean "solid body")