sounds like a video card hiccup. Try changing the resolution higher to see if your holes disappear. That seems to be common at my end.

can you post a file or just as section of that? Also try to verify your part by going through CHECK OBJECT. See what that tells you.

I don't know if you have the stitch tool in VC.

If you do, try using it to click on your trouble solid.

It will be restitched and may fix your problem.

Have you also tried :

- simply changing resolution - to see if the error is graphical only ?

- saved out as a SAT file and load it back in - to strip the file back to model data

- stabbing eyeball / scrotum repeatedly with a sharp pen

I have tried your suggestion but still not resolved the issue.

jol
I have a stitch tool, use of this brings up the error Invalid solid created during healing, or Could not stitch into solid.
I have tried changing resolutions.
I exported as SAT and then imported back into VC. Now it won't let me select a surface when using the hole tool.
I will try your third suggestion, that could be the answer!

billbedford
You have the same problem, how do you get over it?

Tried again to upload the file but get this massage about tokens missing.

Thank you for your support.
I have no show facets in my view menu.( VC v8 )
I have put the file on dropbox
[URL="https://dl.dropboxusercontent.com/u/94722117/AERMOTOR%20BLOCK%2026%20for%20dropbox.vc3"]https://dl.dropboxusercontent.com/u/94722117/AERMOTOR%20BLOCK%2026%20for%20dropbox.vc3[/URL]
The hole shown that has the problem was made .75 dia x .75 deep
Making a hole in other locations gives the same results.

no - you're quite right ... there is a bigger issue somewhere ?

Yes please send model to Tim for evaluation.

All CAD requires very careful planning and construction with nice clean logical feature intersections ... with constant checking and re-checking as you go.

One iffy fudged or poorly-thought-out feature will bring the deck down later (normally when you think you're nearly finished).

You've got to think like you're making a real model in real reality - and not depend on some fuzzy logic magically making everything right for you in CAD.

It happens in Solidworks and CATIA too believe me.

That said - ACIS allows you to make horrible geometry -

... It shouldn't let itself create invalid geometry - as this clearly is. And when it does, it should be able to point out where things have gone awry.

2014 CAD is pretty amazing, albeit difficult

Be glad you didn't (like me) get into it in 1990 : )

Better still, come back in 2030, when I can guarantee it will be much better again!

Hopefully Tim can send this model to Spatial and they can find out (at least) why 'verify>check objects' doesn't catch the fault.

Jol

Hi David,
The hole can be put in, but it might not be proper to produce an actual casting. I "removed feature" the .750 hole, drew a .750005 circle, extruded 1 inch, added solids, and then the .750 hole,.750 deep.
Jol is 100% correct on his information, some tasks that look simple are difficult, and just the opposite on harder assignments.
It doesn't matter what CAD program you use. I did try different exports, Catia showed the least errors, step and sat indicated errors when opened in Inventor.
Larry

Hi David,
The finished engine looks great. Next month we have a show here in Michigan. http://www.namesexposition.com/
where all types of models are on display. My son uses a NextEngine scanner for reverse engineering, he can accomplish more in one hour, than I can in a week. The future looks good.
I was curious though, why you work in inches, instead of mm.
I checked out your videos, very nice.
Larry