Can anyone find the sketch that is causing the nonmanifold edge? I am trying to extrude the black pixels but I cannot because it is saying it will cause a non-manifold edge. Thanks.

Hello there! The non-manifold state means that somewhere there would be an opening or a zero thickness issue on the body. Could it be that you are trying to extrude two rectangles that are connected only by one of their corner points? ps.: next time please share the Shapr3D design after exporting…

Hi Bold. Welcome to the forum. Upload the project please so we can check the sketches for you.

Im not sure how to attach a Shapr3D file to this thread - it wouldn’t let me because I am a new user.

No problem, I just upgraded your status so you should be allowed to upload

Non-Manifold

Workshop Modeling Questions

Oregonerd March 10, 2023, 5:21pm 3

A forum search brought up this thread which suggest using Meshmixer. Non-manifold detection

Topic		Replies	Views
Non-manifold bug? Modeling Questions	4	3087	May 4, 2025
Non manifold sketch, how can I fix it? Modeling Questions	6	1205	October 8, 2023
Help? Non manifold body? Modeling Questions	3	3343	January 29, 2023
Error trying to extrude a imported DXF Modeling Questions	2	83	February 10, 2026
Cant Extrude and other stuff Modeling Questions	9	3280	January 2, 2023

Non-Manifold

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