Hi all
I try to make the 3d of a debilitated sheet metal like PJ to make it by triangulation in folding.
The idea is to get an unfolded view with the folding information (angle, direction...)
Am I drying up on the method to adopt?
Thanks in advance
Hello
except for the surface as in my attachment under Sw 2016; It doesn't seem to me that this is possible because your folds fitted. But perhaps one of my colleagues will have another solution that may work better.
Hello AC Cobra,
Thank you for your answer, if I remove the bent pleats is it possible to develop just the debillard part in triangulation?
I could bring back to weld the folds afterwards.
Hello
The solution is surely in Canada:
https://www.javelin-tech.com/blog/fr/2010/09/spiral-helical-sheet-metal-model/
Personally I would start with the propeller like on the Javelin tutorial, then I would add the folding legs later. Nb: you may have to make small flat areas so that he wants to add folds. The main propeller would be in the end a succession of ends of propellers + tangent flat areas.
Good luck.
Hello
In my opinion and concerning the triangulation bending, I have a doubt that it works for a sheet metal, unlike origami several invoices come into play (spokes, notching, laying on "V"...), and there is also the aesthetics it is not at all the same shape.
For the model it seems that the "transition fold" function does not manage to generate the croquage lines since the geometry is concave-convex so to be remodeled, but it may be that I am wrong,
Another point of view, the sheet metal is thin and relatively small, I don't want to exaggerate but it can be easily deformed by hand (^-^), with a jig or a pressed die (with elasticity compensation) it will be faster and above all profitable (assuming that bending is not optional),
Hello @alexis.leroy,
In the absence of a sheet metal part that I did not manage to create with SolidWorks, I offer you two avenues to explore.
The first is by creating the part with the SolidWorks (Piece_5) volumetric geometric functions. It is then possible to "flatten" the upper surface (in yellow) to obtain a shape close to the developed surface. To be recovered for cutting. A similar solution can be imagined on the surface, at the level of the neutral plane of the sheet.
then all that remains is to roll/bend the sheet metal...
The second in surface mode (Piece_6), generating a helical surface on which to rely to create a sketch made up of regular triangles. They are used to generate elementary surfaces, sewn together, the result is flattened. Each segment of the sketch drawn on the flattening corresponds to a fold. The bending angle is to be measured by measuring the angle between two triangular facets on the "helical" shape.
We will still have to generate the side legs... On a similar principle?
Kind regards.
Hi all
thank you for your answers I solved my problem, I created 1 3D sketch to triangulate the propeller.
I then created a sketch for each triangle in order to make extruded functions. 
Finally I converted to sheet metal and added the "legs"
Thank you for your valuable advice
Have a nice day.
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