Can anyone flatten this object?

I'm trying to take a curved object from image 1 and flatten it to something that looks like image 2. Material is soft rubber .040" thick.
Can anyone show how this can be done in SW? Cut object model is attached.

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10 Answers

I dont know how it could be done in directly in Solidworks.I think I would tackle it by taking slices through the model say every 3 mm or so and interrogate the length of the arcs at each slice then use that length in a 2D drawing then draw a spline through the endpoint of each line. Cant try it because of a computer problem at the moment.

Stu.

 
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Tom is correst
For a full pattern
Make individual cuts and flat pattern
New drawing using flat pattern entities
Block entities
New drawing
Insert block and array into pattern
Make new extrude

 
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Got my laptop up and running again. Attached is a parasolid flat model of your component. It was generated as I suggested by "old fashioned calculator an paper" technique as we would have done 30 years ago using radians and arc lengths.
Using a calculator it can be verified the flat model should be 9.531 high by 6.033" long if you measure my model you will find it corresponds.

 
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Aaron, there is a new add-in for SolidWorks that makes it easy to flatten non-developable surfaces. Have a look at this: http://www.exactflat.com/3D-to-2D-CAD-Model-Flattening

 
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I'm still waiting for Solidworks to implement an internal function to do this. I've been trying to flatten surfaces with complex curvature, boat hulls, and other such forms. I have a workflow that seems to get the job done; SW --to--> Rhino or Pepakura --to--> AI / Acad -- to--> CNC / Laser Cutter. The frustration within the process comes in the loss of data through translation. And if all else fails, I just use this to flatten my models, (see image)

http://inserbia.info/today/wp-content/uploads/2013/09/sledgehammer.jpg

 
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The short answer is 'No'. Any flat pattern will not produce a spherical curve. If you need a flat pattern, you could draw an approximation to the desired shape that does not include spherical curves.

 
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Using the "Lofted-bend" command in sheet metal it is possible. See example I created in SW. I made a 45 deg section in this case but you can make in any increment that would suit you best. The more increments, you get better accuracy.

 
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Tom; Good try. But you actually have 2 items here (look at the cut list). One has a spherical curve and the other does not. The flat pattern relates to the one that does not. Looks convincing though.

 
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Yes, it's true I created a revolved solid as a reference only. But the "lofted-bend" sheet metal still stands as a viable flat pattern. To demonstrate I've remove the revolved solid and all remains is a sheet metal part constructed with "lofted-bend" command. See attachment. Thanks for the feedback.

 
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Have you successfully completed this or do you still need that model flattened? If you do still need the model flattened, do the images in the first post reflect the positions of your desired seams?

 
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