topic Betreff: Split Body with multiple surfaces in Fusion Design, Validate & Document Forum

Split Body with multiple surfaces

workingmatt — Sat, 10 Sep 2022 13:00:51 GMT

I have modelled a flower pot with spiral ridges on the outside. I would like to cut it into matching thirds so I can 3D print it much bigger as three (or more) identical pieces

I could easily cut the body with straight planes but that would leave an unsightly join mark across the outer spirals, so I want the join line to follow the spirals on the outside. I describe my approach to this in the screencast although I would add that the sprial projection was used with a sweep path along a line to the centre of the flowerpot from the midpoint of the sprial to create the curved surface for cutting. In total there are 6 surfaces I want to use to cut the body.

I have tried using Split Body using the surfaces. I also tried thickening the surfaces and using Combine Cut to seperate the body into three but ended up with one body with slots along the thickened surfaces. I was unable to make either of these work to end up with a third of the initial flower pot that I could print 3 times and glue together.

I have attached the f3d file.

Any suggestions?

Re: Split Body with multiple surfaces

jeff_strater — Sat, 10 Sep 2022 14:14:17 GMT

Here is one approach.

separate the bottom, using Split Body, with the inside cylinder face. Note that there is no allowance here for tolerance in the 3D print - you may have to deal with that
extend your surfaces by 1mm to make sure that they cleanly intersect the flowerpot
thicken each surface. I chose .2mm, but that is up to you
use Combine to cut the main body

Betreff: Split Body with multiple surfaces

wersy — Sat, 10 Sep 2022 14:22:39 GMT

If you extend the surface you can splt the body.

Re: Split Body with multiple surfaces

workingmatt — Tue, 13 Sep 2022 11:22:34 GMT

Hi Jeff,

excellent solution and should print OK upsidedown with no supports. You're right that the thicken process is much better because you can add the 3D print tolerances needed.

Betreff: Split Body with multiple surfaces

workingmatt — Tue, 13 Sep 2022 11:25:02 GMT

Thanks Wersy,

extended the surfaces beyond the boundary of the body its splitting was the crux of my issue. I went with the other solution because Jeff went a few steps more to solve my problem - specifically cutting out the bottom first.

Thanks for your answer.