Fill hollow body from STEP file

[martinadDKD98]

Hi all,

I downloaded a STEP file from GrabCAD which contains the boom of an excavator. The boom is a hollow body, as can be seen in the following section analysis:

Boom (section analysis)

How can I fill this body to make it solid?

What I did so far: I used different section views and the tool "Press/Pull" in order to pull the internal surfaces. This works, but seems wrong/clumsy to me, because I have to use different section views, and I have to guess when I pulled enough. This feels more like painting than constructing.

Is there a better way to fill this hollow body?

Regards,

Martin

[TheCADWhisperer]

Boundary Fill

[martinadDKD98]

I already tried boundary fill, but was not successful (because I am new to Fusion 360).

How do you do that with boundary fill? What would be the "tools" and what the "cells"?

[TheCADWhisperer · Accepted solution]

See Attached.

[martinadDKD98]

Thank you. My fault was, that I did not select the "Boom Pin".

[dikshant.]

Tools are the bodies or components you wish to use boundary fill on and cells are sections of the body/component you wish to keep after the boundary fill.

[AK47BHOOM]

Hey @martinadDKD98 ,

Adding to @TheCADWhisperer you can also try in this way. Just delete the tapered faces on both sides and use extrude to pull the face. see the attached file.

[martinadDKD98]

@AK47BHOOMThis is an interesting behavior. I did not expect that Fusion would react like that, when the tapered faces are deleted (converting the whole inside into one single, straight surface).

Thank you.