I've seen this a couple of times and I believe it has to do with the 3d
mesh creating a rogue triangle or vertex which is beyond the z-buffer
range so it shows only partial graphics or none in a particular
In those cases, it was with an asm and a prt and the prt was the weird
one (I have to look for it) but I could never resolve that problem or
the view/orientation which it disappeared in (BTW, it was not a graphic
card problem because it would do the same on a few other machines with
different grfx cards and I also ctrl-q'd and moved features up and down
But, what I found were a few features which may have contributed too the
rogue tesselation/vertex or I would roll back or suppress them and it
would allow that view to show again.
What solved the problem was rebuilding the part, from above where the
suspected features could have cause the problem, and using the same
BTW, this is not uncommon solution for features which out of the blue
have red cherries on them for no reason, you have to delete or just open
a few sketches and the cherries go away.
I can only guess that a subtle change of some sketches, ~.001"/0.01mm,
which are suspect may help work?
Or do a analysis to find some short edges on the parts and see which
feature/sketches may be related.
I personally think your asm has a part which has a tesselation/vertex
which is out of range or messes up the z-buffer in the assembly.
> I've been using SolidWorks for many years and have seen all sorts of
> graphics glitches along the way; however today's experience is a new
> one on me.
> In a simple seven part assembly, with only a handfull of basic mates,
> the assembly can be seen in head-on "orthographic" views but
> disappears from the screen when "isometric" orientation is selected or
> as soon as an attempt is made to rotate it manually. No amount of
> zooming, panning or attempts to fit all correct the disappearance -
> only the use of another head-on view brings it back...
> Does this quirk sound familiar to others?
> Per O. Hoel