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Hmmm... without seeing the files you are importing I can only speculate that though the graphics bodies appear correct when imported into SOLIDWORKS as a graphics body there is a condition within the mesh that is causing the holes when the more stringent requirements for a mesh brep body are applied during conversion. In the past I have seen this sort of thing when converting to a mesh brep body when the original mesh has co-located or overlapping facets and also when the original mesh has disjointed facets (facets that appear to share an edge but don't). A google search for "mesh errors" will show many results that give explanations and examples of overlapping facets and disjointed facets. Disjointed faces in SOLIDWORKS are easy to spot because we color the edges of the face blue. You see this blue color when the mesh body is converted to mesh brep as well. Sometimes delete hole can be used to fill fully bounded holes in a mesh brep surface body. Hope this helps. Good to hear from you Jeremy!

you should be able to control the snapping to mesh vertices with the following system option: Tools -> Options -> System Options -> Sketch -> Relations/Snaps -> Snap to endpoints... This applies for all body types. The reason it is more noticeable on mesh based geometry is because there are a large number of facets in a faceted model, each with three vertices. Thank you for watching my video.

Greg, Thank you for question and thank you for watching my video. It is possible to subtract a mesh brep body from a classic brep body using the combine command (with the classic brep body the main body). When you say "3d scan converted to a mesh body" you mean *.stl file imported then converted to a mesh brep body and not a graphics body, correct? Please see the first video for the definition of these body types. It is not possible to subtract a graphics body from a classic brep body. Note you must be using SOLIDWORKS 2022 or later for hybrid mesh bodies.

I opened the 3d scan (*.stl) with (all files) using open and it came in as (Graphic1) in the feature tree. Not (Mesh1) in the feature tree. Then used the convert to mesh command. I think that means its then becomes a Mesh brep body. When I tried to use combine it was greyed out. Also, when you open as (all files) It comes in as (Graphic1) in the tree and most of the Scan to 3d commands wizards are greyed out. If you open with (Scan to 3d) file types, the (*.stl) comes in as a (Mesh1) in the tree and the Scan to 3d command wizards are not greyed out. Do I have to use the convert to mesh with a (Mesh1) from the tree and not the (Graphic1) from the tree? -Thank You, greg (using Solidworks Pro 2024) It won't let me pick (Mesh1) in the tree when using the convert to mesh command. would holes in the mesh brep body not allow a combine command? The vertex ribs are all grey and not black on my 3d scan so it is a Mesh brep body but combine still wont work. My graphic body is open. Your graphic body is closed in part 2. I couldn't reach some deep slots with the scanner. large gapping open areas in the 3d scan/mesh. I'm hoping that's why it wont combine. I'm going to try and rescan to make it closed. If that's what it means by being (open) Thanks again Marlon!

@@GregVillegas-c2d Please disable the Scan to 3D add-in. The mesh functionality in core SOLIDWORKS is independent of Scan to 3D. A mesh brep body is not that same as the "mesh" body generated in Scan to 3D. Once imported the graphics body should be converted to a mesh brep body. Please review the mesh modeling videos to learn about the three body types (graphics body, mesh brep and classic brep) and how to convert to mesh brep.

I watched your vid 1... 3 or 4 times and paused it on the 3 different Brep bodies and read it. I'm familiar with it now. Solidworks is not allowing the combine with an open mesh? Or its because I opened the STL with scan to 3d plug in on? Thank you very much Marlon! I've been trying all week to do that one command. I thought Solidworks would be able to do it. 2024 Solidworks Pro...All you have to do is open the file. Not import. I dont remember how it went with the other revisions. Im greg v not at work.

Mesh files have the same watertight/manifold rules as SOLIDWORKS solid body geometry. This is especially true when you attempt to convert a graphics body to a mesh brep body. As a graphics body the tools in SOLIDWORKS allow you to remove offending facets in different ways. This can resolve overlapping and intersecting facet issues. If the removed facets present a problem you can fill the hole by converting to mesh brep and using something like delete hole or other features to fill in the hole. In SOLIDWORKS 2022 or beyond this may create a hybrid mesh body. Note that there are also many free mesh editing tools available for download that have automated tools for cleaning up the mesh. The issue with these is that the run an algorithm for which you may have little control so the result may not always be what you want. Thanks for watching my video.

@@mbanta excelent!!! Thanks Marlon. Your videos is very good. ✌🏻

Thank you very much for watching my video. I also greatly appreciate the feedback you have provided and would welcome the opportunity to speak with you to better understand your ideas. One thing I would say is that not all users have the ability to work with a scanning service. I would also say that with the hybrid mesh and mesh brep tools we provide, getting a "real" solid is often not even be required. This can save users quite a bit of time and resources while still allowing them to reference and incorporate mesh geometry in their models. The second mesh video in the series discusses this in more detail.