Making a Feature Follow a Drafted Surface

I am new to Pro E and have box with the sides drafted 10 degrees. I
have also shelled the inside of the box. I need to add four tabs to the
top of the box for attachment points. I have tried sketching on the top
of the box and extruding after shelling and drafting and it will not
follow the angle of the draft. It is 90 degrees from the top straight
down when I extrude it. If I try to draw the tabs with the box
undrafted and then draft the box it drafts the tabs, but when I shell
it shells everything and the tabs must remain solid. This is driving me
crazy!!!

Any help greatly appreciated.

Thanks, Steve

 

Am I misunderstanding? If you want the tabs to be co-planar with or parallel to
the drafted sides why are you extruding from a plane that is not perpendicular
to the drafted sides?

The problem is, one would think, quite simple. Communicating it or the solution
verbally may be more difficult. You might try posting the model to
mcadcentral.com (scads of fellow newbies) and asking someone to explain or show
you how to go about it if above doesn't solve the riddle.

(Just for the record; is 'new to pro/e' an understatement? If you are 'new to
solid modeling' say so and help those that would offer assistance put things in
perspective.)

 

I might have shared your problem, Jeff. By the time I'd read the question
through 3 times, I had about 6 different pictures of the model and modelling
problem. ( I'm still in favor of comp.cad.pro-e as a binary NG ~ absolutely
incredible that we vainly try to communicate [mostly quite lamely] visual
problems with words while we have no poets, no wordsmisths who could do a
more credible job. Guys., we've tackled a singularity: the verbally
impossible picture; the visually impossible words ~ what would you prefer to
judge/evaluate/troubleshoot by? words or pictures with a little verbal
enhancement? presently we have words alone, seems lame for 3D visual model
advocates [worthathousand.com]).

Mainly I envisioned this as a sheet metal part. 'Tabs' to me indicated
flanges off the sides, parallel with a top/bottom surface. I mean, that is
what a shelled box sounds like. And drafted sides? No biggy for sheet metal.
Also, many tricky features in Pro/e benefit from surfacing. That difficult
drafted, ribbed, flanged box turns to nothing with surfaces which will
simply 'thicken', effortlessly. Haven't seen the design so can't say
authoritatively, but I run into people all the time making impossible solid
parts that should have been done, so much more simply, with surfacing.

David Janes

 

David Janes wrote:>

What he describes makes sense to me, and I wish I had such problems ;-)

You want your features in the following order: 1. Box. 2 draft 3. Shell
4. tabs. Use the inside edge of your box as the 4th side of your tab.
As someone else said, it will disappear inside the solid.