Sweep Errors

[caunyd]

Hi guys. I'm having difficulty with this sweep. Upon checking geometry, there are the following errors:

1/ Solid - invalid
2/ Shell - sub shape not in shape

I am aware that I can split up the sweep path to multiple smaller ones, but when I do this, the sweeps seem not as refined, even when combined. So with the sweep the way I have it now, how do I being to fix these errors? Thanks!

[kisolre]

Main problem was "almost" tangencies. These often give errors. I also properly mapped section sketch to the beginning of the path. I assume that is how you want it.

[caunyd]

Yes! Thanks you Kisolre! So you solved it by slightly redoing the sweep path to avoid those "almost tangencies" ?

[chrisb]

Besides that, your sketches should receive some love. You should always aim at fully constrained sketches. You should prefer geometric constraints over dimensions. Repeating dimensions is not always wrong, but it always has a bad smell. Furthermore in the Path you have lots of useless points. Remove them and your sketch will have only two degrees of freedom left.

[caunyd]

chrisb, that's why I come here for the masters . For the path, I felt that I used what I needed to get the path I wanted. I don't know how I could do it without those points. Can you point out which points are useless and how I could do it more efficiently? Thanks chrisb

[chrisb]

Look at the elements list to the left and remove all the points. They don't contribute anything. I have added two radius dimensions, to make the sketch fully constrained. The numbers look rather weird here, perhaps because I'm using metric units.

This is your profile before reworking it:

Snip macro screenshot-c04484.png (29.26 KiB) Viewed 425 times

It contains 12 elements 33 constraints with 13 dimensions and shows 3 degrees of freedom. I reworked it and had quite some time to search for the last two degrees of freedom, which came from an again completely useless point far away from the sketch.

Here is the result:

Snip macro screenshot-818f7a.png (25.18 KiB) Viewed 425 times

It contains 10 elements, 26 constraints, and only 7 dimensions and is fully constrained.

[caunyd]

ok I'm seeing it. Thanks chrisb