topic Mitering Intersecting Flanges in Fusion Design, Validate & Document Forum

Mitering Intersecting Flanges

kyle.brett1 — Sat, 04 Jan 2025 12:27:09 GMT

Hey Team,

Desperately looking for some help here, feel like I have explored every avenue. I am new to Fusion so trust that isn't the case.

I am trying to mitre these three intersecting flanges within the Sheetmetal workspace ; I've tried the unfolding method, the chamfering method and am at a loss.

Any and all help is much appreciated

Re: Mitering Intersecting Flanges

Warmingup1953 — Sat, 04 Jan 2025 18:39:58 GMT

You can go via Surface modelling but it is rather laborious! FWIW here is my go at it:

Re: Mitering Intersecting Flanges

kyle.brett1 — Sun, 05 Jan 2025 08:49:46 GMT

Thanks heaps for that mate! May be a little more work but the end result is awesome. Never would have considered that as an option.

Hope this helps anyone with the same problem in the future. Would be interested to know if there are any other ways of tackling this problem too if you could think of any.

Cheers

Re: Mitering Intersecting Flanges

johnsonshiue — Mon, 06 Jan 2025 19:07:53 GMT

Hi! At the moment, the particular geometry is quite challenging to create in Fusion Sheet Metal. The miters need to be created manually. There isn't a one-click solution to do that. Either you need to unfold the two flanges partially and cut middle flange accordingly. Or you will need to use surface model techniques to create the flanges and miters. Please take a look at the attached two designs.

Many thanks!

Re: Mitering Intersecting Flanges

JamesMannFusion — Tue, 07 Jan 2025 11:25:51 GMT

Another method that I normally use is less than perfect in it's result but is quite easy to implement and will get a useable profile. Is just a straight extrude cut where we would want the miter. I use a plane created by the two edges to make sure the sketch is in the correct place and project the top edges of the sheet (see picture below).

The issue with this method is your edges are no longer square, but as long as the flat pattern is created on the top side (or same as the sketch -extrude side) of the part then the laser cut profile should be correct.

Re: Mitering Intersecting Flanges

JamesMannFusion — Tue, 07 Jan 2025 15:09:14 GMT

Realised in my case above, that I haven't actually made any clearance if those faces were brought back to being square. So an offset from the projected geometry is needed on the extrude cut.

Re: Mitering Intersecting Flanges

TheCADWhisperer — Tue, 07 Jan 2025 15:14:29 GMT

@JamesMannFusion

Are there any unresolved issues highlighted in your timeline?

Re: Mitering Intersecting Flanges

JamesMannFusion — Tue, 07 Jan 2025 15:27:02 GMT

@TheCADWhisperer
Yeah, the original creation of the final flange intersects on itself so throws an error but it does still compute correctly.