I have this project of a boat hull, intended to be built using the stich and glue method, so all surfaces are developable.
Problem is, I tried everything I could think of to transform each surface into a sheet metal (thickening then extruding straight on a few centimeters), I always have an error saying that it can't calculate the thickness. Is there any other way to get those parts' shapes on a flat surface, to be able to cut them ?
Thanks for your help and advices,
Bernard
I think the Forum users will need your model to make a final assessment, please attach it. I have my doubts the compound curves of your design can be adapted to sheet metal for flattening but the model will help to determine if it is feasible. 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.
John Hackney, Retired
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@davebYYPCU wrote:
Export to Meshmixer as a surface.
Save each body as STL
Use Meshmixer > Unwrap.
Save the result as STL,
Import to Fusion and trace it.
Might help.....
For a developable surface that should not be necessary.
Please don't us the quick reply function at the bottom of each thread. It makes it often difficult to discern whom you are responding to.
I have exported surfaces as .stl files many times, but not for use in Meshmixer.
It would help if you can share the model.
Sometimes, it's a good idea to believe what the user says, rather than questioning his ability to know what he is saying/doing. They ARE developable surfaces, here is a section view, which I can move on the whole length, it shows straight lines everywhere.
The model file you have attached can only be opened using the an Insider Edition of Fusion 360. It cannot be open using the current public Fusion 360 license version. The next Fusion 360 version is supposed to be released some time in March, 2023.
John Hackney, Retired
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I agree that these are developable surfaces. It's still possible that Fusion 360 refuses to flatten them. I was not able to open the model :
Edit:
I have previously only done some quick studies, which filed to flatten. I never took the time why they did not work.
The Side faces of you boat are indeed twisted at both ends, and that is likely the reason the cannot be flattened.
to flatten a sheet metal body in Fusion 360 the surface needs to have a flat surface attached to it that tangentially "flows" into the actual surface.
This curved surface looks somewhat similar to a side face of your boat:
And flattens fine:
The twist at both ends off your boats surfaces do not allow to extend a flat surface.
That unfortunately is Fusion 360's limitation.
