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Subtract Command Problem

Subtract Command Problem

Subtract Command Problem

(OP)
I am using autoCAD 2006 and have run into an issue when I try to subtract a sold from another solid. I keep getting an error message that reads Inconsistent Edge-Face Relationship. For some reason this is not happening anywhere else on my model. Does anyone have any ideas that might help me out?

Thanks!

RE: Subtract Command Problem

I've had that before and it seems it was usually that I didn't have them aligned like I thought I did.  One was slightly off-plane or something.  Or the overlap wasn't actually what I envisioned it being, so there was the situation where the subracting face came out of contact with the other body.  I've gotten to where, if possible, I make the solid which will subtracted from the main object longer/wider than necessary, since it goes away anyhow.

For instance, for the simple case of having a 6" dia X 12" L cylinder that I want to make a 2" dia hole through, (a the centerline, quadrant to quadrant, perpendicular to the axis), if you make a 2" dia X 6" L cylinder to do the subtraction with, you might get that error.  But if you use an 8" L X 2" dia cylinder and let it stick out on either side, you won't.

Other times, I've had a drawing error where a face wasn't exactly as I meant for it to be.

RE: Subtract Command Problem

try to extrude one of the solid into the other one and subtract.

RE: Subtract Command Problem

(OP)
Thanks, both of these helped!

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