topic Re: Split body error in Fusion Design, Validate & Document Forum

Split body error

simon.doussetCDVPT — Thu, 25 Feb 2021 10:37:43 GMT

Hello,

I'm trying to split a body using a surface body, surface extracted from an other body to make them perfectly compatible. The probleme is that I have the error "no intersection between bodies" while, as you can see there is an intersection.

When I try a reverse split, that is to say split the surface body using the yellow body, it works.

Does anybody have any idea to help me to solve that error ?

Thank you in advance,

Best regards,

Simon

Re: Split body error

TheCADWhisperer — Thu, 25 Feb 2021 10:43:50 GMT

Extend Surface

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

Re: Split body error

shahriarsifat1802164 — Thu, 25 Feb 2021 13:47:47 GMT

Hi,
Please attach your file.
Thank you

Re: Split body error

Johnc911 — Thu, 25 Feb 2021 17:24:40 GMT

The surface might not be intersecting completely.

Re: Split body error

simon.doussetCDVPT — Mon, 01 Mar 2021 10:17:12 GMT

Hello,

Here is the file where the 2 bodies that have to work together in the splitting fonction are.

If you can find an explanation, it would be very great !

Thank you in advance,

Simon

Re: Split body error

laughingcreek — Mon, 01 Mar 2021 16:12:39 GMT

The surface and edge quality of your splitting body is pretty horrendous.

You might expect quality like this on a final fill-in surface that you have to shoehorn into place and can't come up with another way, but not on a primary or secondary surface. definitely not one you want to use as a tool. This surface needs to be rebuilt from scratch using good technique so it is a clean surface.

It's hard to say exactly how you got here, because I decided not to slog through your time line-

No idea if those errors are related or not. frequently errors in the timeline will cause odd things to fail down the line. As long as there are errors in the timeline your chasing your tail. those get fixed first and a the happen

Also-when making solids and surfaces, there is an order to which tool you give difference to.

Always-

1-extrude/revolve if that achieves the shape

2-sweep if extrude/revolve won't do it

3-loft/patch only if you can't do it another way

You've lofted everything, and it looks to me like most everything could have been done by extruding and trimming.

if you have sketches, diagrams, etc of what you trying to do you can probably get someone to help you.

Re: Split body error

laughingcreek — Mon, 01 Mar 2021 16:33:38 GMT

is the attached closer to what you want?

Re: Split body error

tibor54 — Mon, 01 Mar 2021 22:15:01 GMT

I design tools. My biggest problem is: I can never solve the SHELL instruction.

https://a360.co/3h2SyBv

Re: Split body error

laughingcreek — Mon, 01 Mar 2021 23:49:20 GMT

@tibor54 wrote:

I design tools. My biggest problem is: I can never solve the SHELL instruction.

https://a360.co/3h2SyBv

just to be clear, when I referred to a "tool" I was talking about using the surface as a cutting tool.

shell can be tricky. It's greatly affected by geometry. definitely need clean surfaces.

is there a question in there?

side question-your part does't need draft to pull out of the mold?

Re: Split body error

simon.doussetCDVPT — Sat, 06 Mar 2021 09:47:21 GMT

Hello @laughingcreek,

Thank you for your answer.

What is the function "loft" ? I use fusion 360 in french and I can't see wich function it is. Is it one of the 2 that I surrounded ?

I'm surprised that my surface quality I want to use as a tool is very poor because I extracted it from a body via 3D skectch and constructed the surface using the closing face tool closing.

Sorry, I didn't send the all project because it's pretty heavy and I don't it to be publicly published... Maybe via private email if you're ok ?

Re: Split body error

simon.doussetCDVPT — Sat, 06 Mar 2021 09:50:56 GMT

It is close but a bit too simple to perfectly match the othre body it supposed to fit with...

Re: Split body error

TheCADWhisperer — Sat, 06 Mar 2021 14:00:21 GMT

You have numerous unresolved issues clearly highlighted in your Timeline.

I recommend that you start over from scratch and stop and ask questions at the first sign of difficulty.

Re: Split body error

simon.doussetCDVPT — Tue, 27 Apr 2021 08:35:19 GMT

Hello,

I'm trying to developp a part that have some complexe geometry in 3D, and I'm not used to do desig such complex things. That's the reason why my time line wasn't so clean. I've tryed to redesign my piece and simplify it, so for now I don't have problems. Thank you all for your help ! 🙂