How to cut with a plane

[Anonymous]

Hello,

I have a quick question.

First I will list my workflow

I am sketching a simple abstract curve and then extruding and then thickening.When I thicken with sharp edge I get a flat bottom(whih is what I want). When I thicken with soft edges I don't get a flat bottom. It is mostly flat but if I were to 3D print I would most likely need a bit of support underneath on each side. My question is.. How can I flatten the bottom plane? I like the thicken with soft edges as I have less work to do when sculpting with edit form. I have added an image so you can see the slight undercut on the bottom edges. The plane in the image was added as I thought I could offset from that plane and then cut.

[jeff_strater · Accepted solution]

There are a couple of ways to do this

1. You can use a plane to cut your model.  Here is a screencast showing how to do this:

2. You can use "Crease edge" to create sharp edges on only those faces you want to be flat.  Here is another screencast:

Hope one of these works for you.

Jeff Strater (Fusion development)

[Anonymous]

Thank you! Each solution worked beautifully!

[fchixon]

This solution is now obsolete.  The latest version does not have a Split Body menu item.  I am trying to slice a large object into 4 pieces so I can 3d print it and there does not seem to be a way to do that.  I need to cut it up because of the convex and concave surfaces in my model.

[davebYYPCU]

Strong words, pleased it's not true

Check out the Modify Menu, about halfway down.

Might help....

[fchixon]

Looks good.  It looks like I am having trouble turning my imported IGES files into a body or mesh or anything that can be operated on.  It's a complex boat model and renders and 3d prints fine, but I am just trying to cut it into segments for better printing control.  Oddly, I can use a section analysis plane and slide my cut visually all around/through the model with no problem, but I can't just cut it into pieces using that.

[davebYYPCU]

I don't know anything about Iges files.  

If the model converted to Stl, Import that,

there is Plane Cut in the Mesh workspace that works the same as Meshmixer.

Might help....