How to flatten a shape but keep measurements

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 From:  Matadem
10966.1 
Good day.

I have a few measurements that I need to flatten but I need to keep the measurements (if that makes sense).

The shape (attached file) is the end shape but I need to cut it from a flat piece of wood and then bend it into the shape.

Is this possible?

Thank you!
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 From:  Frenchy Pilou (PILOU)
10966.2 In reply to 10966.1 
Something like that ? (in view Front )


So you will see that in the 3D view! ;)

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 From:  Matadem
10966.3 In reply to 10966.2 
No that wont work since it does change the length.

After I cut it I have to bend it with the exact same measurements.

tnx.
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 From:  Michael Gibson
10966.4 In reply to 10966.1 
Hi Matadem, a surface that can be flattened down to a plane such that it can be cut out and bent back into the 3D shape along ruling lines is called a "Developable surface".

Moi does not currently have any tools specifically for working with developable surfaces. Rhino does have such tools, there is an "UnrollSrf" command in Rhino that you could use to generate the flat pattern from the 3D ruled surface.

But in MoI it could be possible for a pretty simple case like you have here to use the Curve to Curve variant of the Transform > Deform > Flow command.

You'll need a centerline curve, here I made it by squishing down one of the 3D curves but if you have an original 2D construction curve use that:



Then you'll also need to draw a line like this:



Select the object:



Then run Transform > Deform > Flow and at the first prompt for the base object select the centerline curve and at the second prompt select the line as the target curve. That should generate your flat pattern:



The length of the curved centerline will match the length along the flattened centerline.

- Michael

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 From:  Frenchy Pilou (PILOU)
10966.5 
I didn't quite understand the problem! :)

Just a little advice why not centered the object on the origine above the grid and not floating in the empty space! ;)
---
Pilou
Is beautiful that please without concept!
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 From:  Matadem
10966.6 
Got it to work!

Thanks to all!

EDITED: 25 Jan 2023 by MATADEM

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