Sweep Cut Curved surface Will do single but not multiple

[OldOZNoob]

Hello,

Trying to multiple sweep cuts across a face like below. Allows a single cut but the face needs about 90 repeated going left to right on the concave surface.

Error message comes back

image.png (25.33 KiB) Viewed 1733 times

But it will do a single?

Lost as I performed the exact same task on a convex surface yesterday with no issues. Also it will let me enter each cut individually if i put it on a new sketch each time, but im not doing that.

Please help.

Ol Oz

[zxys001]

Hi OldOZNoob, can you share the file?

..

[OldOZNoob]

Hi Zx,

Hope this works !

Never shared a file

You can see the first one. Just trying to repeat that across the entire concave.

[AlexB]

I took a look at this just to be sure because I figured this is caused by zero-thickness-geometry.

A sweep-cut is a boolean operation so it subtracts the "solid" you're making with your sweep from the existing solid. I manually performed that operation by creating your sweep as a solid and patterning it across the length. When I use Combine -> Subtract, I get this error.

My advice is to do one of the following:
1) Get rid of this point in your sweep profile pattern.

It needs to be a single enclosed profile (in most cases)

2) Your sweep needs to be made up of many single sweep operations (not really a good practice)

[TTevolve]

Make it a revolve cut and pattern it. I had to add extra reference geometry because you didn't start off the standard planes as the center and nothing was locked down. But it should work better.

NEW METHOD CONCAVE.SLDPRT

(780.35 KiB) Downloaded 83 times

I would not use a sweep unless I had to, usually when the profile needs to change path in all 3 directions. Patterns will regenerate faster.

[OldOZNoob]

Thank you very much TT Evolve that's a great help.

@Alex B I'll give that a try also.

Thanks for posting Zx, these chaps have sorted it.

Cheers everyone!!

Old Oz

[FTUMCH]

Cool handle oldoz
GDay from sunny Perth