"Flatting" Polar Triangles

[Anonymous]

Hi all,
I need to translate onto a flat surface the perimeters of a generic spherical triangle, so to obtain laser-cutting path for generating pieces that will be subsequently blended in order to reconstruct the entire model.

In the attached images you can see an "ogive" that I want to cut into tre slices. Each slice perimeter will become the laser-cutting paths.

I know that the matter go right to the general projection problem (ex. the Mercator projection), so the simple operation of projecting those perimeters onto a flat surface will introduce too much errors.

Do you have any idea about how to do that in order to mitigate errors?

Thank you!

[TheCADWhisperer · Accepted solution]

Autodesk MeshMixer or Autodesk Inventor Professional - Unwrap.

[Anonymous]

Hi TheCADWhisperer,
thank you for your reply!  I'm able to confirm the correct procedure:

1. Export from Fusion360 the desired surface into an STL file (it is not necessary to export from a body.)
2. Open the free software "Meshmixer" ( http://www.meshmixer.com ) and import the STL.
3. Use "Edit - Unwrap" function to flatten the surface, delete the source surface and export the obtained flat surface(s) into the desired format (ex. SVG.)

Anyway it's a pity the lack of these functionalities in F360!