CAD an arm cast with connecting points

[kskelil]

Hello, 

I am fairly new to Fusion 360 and CAD in general. I am working in an orthopedic office, and we are attempting to 3D print an arm cast in the "voronoi" design. I have used meshmixer and fusion 360 to get the cast and design down (I have attached the 3D scan of the arm we used, the cast, and the voronoi inspiration). 

I am having trouble separating the cast into two pieces and then having them connect. I don't know how to fill triangles in or to create a cut aside from a plane cut directly through the middle. How would I go about separating the cast into 2 halves that can be connected and disconnected for a patient to wear?

Thank you in advance!

-Kyle S

[TrippyLighting]

Tying to work with large .stl data sets in Fusion 360 is rarely a good idea.

Looking at the brace .stl is this the original scan ? It looks like someone has already meddled with the file and tried to close the open .stl.

If you want to work with Fusion 360 this needs to be converted from a triangulated mesh into a NURBS surface. 

[Anonymous · Accepted solution]

If you want to stick with mesh processing and Meshmixer: Two threads from the MM forum which may be interesting for you:

Creating various casts/splints for a 3d scanned right arm

How can i model/where can i find "male female connections"

[TrippyLighting]

@Anonymous Awesome stuff!

[Anonymous]

@TrippyLighting : You're welcome. 

We need to close the gap between BReps and mesh representations. So whenever you feel an issue targeting mesh representations on your playground : Drop me a line....: I'll try to step into it.

[kskelil]

@Anonymous 

Thank you so much! This is super helpful, you're awesome!

[drew.regner]

@Anonymous  I know its an older post, but thanks, this answered my questions I was asking about making casts.