Project to surface

[W.Alblas]

Hi! I'm trying to project a line on a 3D surface. Unfortunately, it only worked for a small segment of the curve. I think it has something to do with my surface. The surface is a bit difficult since it is a landscape that is imported from Blender. Does anyone know what to do? Thanks a lot!

[laughingcreek]

what is it your hoping to accomplish with this projected line?

BTW-I don't see any "projected" lines in your pics.

[W.Alblas]

Thanks for your reply!

I want to project the line on the surface so I can engrave (CNC mill) the line with a trace operation. Basically, I want to CNC mill a wooden landscape with the hiking route on it.

In the first pick, you can see a lot of dots on top of the surface, that's the projected curve.

[Drewpan]

Hi,

Projecting literally means you have a surface and you Project the line onto that surface. It seems that what you

have done is draw the line onto the surface directly.

In this case, if you had a map with elevation lines on it and your walking track was also marked on it, you could

take your 3D elevation map you have created as a surface and then shine a light under the map and the walking

track would be Projected onto the the 3D elevation at the correct place.

I think that is what you actually want to do but what you have done is YOU projected the line onto the 3D surface

by manually drawing it.

You could try to import the original 2D map as a Canvas, overlay your 3D terrain and then Project points onto the

terrain for more accuracy.

Cheers

Andrew

[etfrench]

In a 2d sketch, draw the path.  In the Surface workspace, extrude the path through the terrain body. Use that extrusion to cut the face (or cut body) of the terrain body.  This should give you a selectable path to machine.

[HughesTooling · Accepted solution]

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@W.Alblas wrote:
Thanks for your reply!

I want to project the line on the surface so I can engrave (CNC mill) the line with a trace operation. Basically, I want to CNC mill a wooden landscape with the hiking route on it.

In the first pick, you can see a lot of dots on top of the surface, that's the projected curve.

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Have you tried the project toolpath? No need to project the curve in the design at all!

Mark

[etfrench]

That's certainly easier😀

[HughesTooling]

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@W.Alblas wrote:

. The surface is a bit difficult since it is a landscape that is imported from Blender. Does anyone know what to do? Thanks a lot!

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If you still have trouble using project in the manufacture workspace you could work with a triangulated mesh rather than converting to a Brep. Using the mesh would probably give more detail as the conversion is going to smooth out some details.

[W.Alblas]

Wow, I have never heard about this toolpath. Thank you so much!