Issue with cones to sheet metal

[koenvanvliet9]

Hello,

I am having a hard time using the "sheet metal" method to unfold my designed cones. I have watched a couple of tutorials where they put a flange the size of the material, thicken the surface etc. 

but i am not having succes with converting the body's to sheet metal so i can create flat patterns. 

Tried to find an existing post of a simular  problem but didnt find anything that can help me with this. I hope im doing something wrong here.

Added my F3d file, hope someone can help me out 🙂

[jhackney1972]

You must have a small "flat" area, normally on the beginning or ending of lofted, thicken body.  Normally this is done by the extrusion of a small flat section along the separation line of the cone but in your case, this edge is not flat so this extended flat section is not possible, at least by an method I am aware of.  This is caused by the fact that your surface loft is between non-parallel sketches.  You can see the process of creating a sheet metal cone, when the sketches are parallel, in the attached Screencast.  I hope someone has a better way than I can offer.

[davebYYPCU]

From file as supplied, Without further work

Save each body as STL (Ascii - type)

Go to MeshMixer, and for each file, 

Open > Edit > Unwrap, hide original

Export the flatterned body.

Proceed with original intent, (trace the imported mesh bodies?)

Accuracy will be lost from Fusion lofted surfaces to STL faces , but should get you there.

The reason your unwrap construction fails to allow the small flat extrude segment, is that the construction angles of the split are not parallel (by design), therefore the thicken side face is also a loft and not a flat plane, can't be sketched on, or selected as an extrude profile.  Worked for John, because he deleted your lines and made parallel ones.

Might help....