I'm trying to flatten a part of my design which is a partial cone. It simply doesn't convert to sheet metal.
Now I'm using a solid body that is 90degree revolved from a sketch (tried different thicknesses too). I've tried revolving a surface and thickening as well. It keeps giving the error: can't calculate body thickness'. I want to flatten the piece afterwards as a stencil, how can this be done?
Please attach your model. If you do not know how to attach your Fusion 360 model follow these easy steps. Open the model in Fusion 360, select the File menu, then Export and save as a F3D or F3Z file to your hard drive. Then use the Attachments section, of a forum post, to attach it.
Edit: You can also try and use the method outlined in the Blog Article and Video.
John Hackney, Retired
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Here is the one you show in your screen shot. I used the method outlined in the Blog Article I mentioned. Model attached.
John Hackney, Retired
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Hey John,
Thank you for thinking along, but unfortunately what you did did not create the flat pattern as it should. As I mentioned before; it's a partial cone, not cilinder. A cilinder indeed would fold out into a rectangle like you did, but the cone should fold flat into a curved rectangle. So unfortunately this is not the flat pattern I need.
Do you understand out miscommunication? Maybe you know the answer for a cone too?
One problem you have is the part is not a uniform thickness because your sketch has an error. This is why you should always fully constrain your sketches.
Mark Hughes
Owner, Hughes Tooling
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After adding a couple of coincident constraints to the sketch I get a valid body I can convert to a sheet metal body. Note. ideally you should create a component for each sheet metal body so you can create a flat pattern for each.
I added an extrude of 20mm to give a flat surface to select for the unfold, just reduce this to 0.1 or even smaller after selecting. Then unfold works. See attached design.
Mark Hughes
Owner, Hughes Tooling
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If you want to unfold the part with the fillets you'll need to add a tag on one end without any fillets.
Something like this.
Mark Hughes
Owner, Hughes Tooling
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