Offset Flip problem

Offset Test.skp (166.0 KB)

Has Anyone noticed an issue with the offset tool accidentally flipping edges to the wrong side occasionally? This has happened to me a few times, notably when arc’s are involved. For example I am trying to inset the border of a face and everything looks fine until I release the offset tool which then a filleted corner will flip to the opposite side.

Thanks for any help.

I see that same behavior with Offset when the edges aren’t welded.

Offset works as expected when the edges are welded, however.
Screenshot%20-%209_3_2018%20%2C%205_57_22%20AM

I’m in the habit of welding edges as SOP so I haven’t seen it before in my modeling before. Looks like a bug, though. Have you made a bug report?

What method is best for welding edges? Assuming it’s not a native process within SketchUp. I’m a long time user, but haven’t encountered a need to weld quite yet. Thanks.

I use TIG’s TIG-Weld and Eneroth’s Auto Weld. TIG-Weld is good for welding a selection of contiguous edges together. Auto Weld will go through all of the selected geometry and weld whatever can be welded. Welding can save a lot of time later and it’s also a good thing if you use sketchy edge styles.

Welding Follow Me path edges makes it easier to select them before running FM. It also reduces the need to soften/smooth edges.

Same sketchy style without and with welding by Auto Weld.
Screenshot%20-%209_3_2018%20%2C%208_04_16%20AM

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Ok thanks for the tip to try welding. I’ve not had this issue in previous versions though, so like you said probably a bug. I will fill out a proper report, just wanted to see if it was only happening to me. Thanks!

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