Shoelast

Post here for help on using FreeCAD's graphical user interface (GUI).
kridhond
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Re: Shoelast

Postby kridhond » Sat Mar 18, 2017 12:40 pm

Besides the weight of the poles for finetuning, can you drag the knots to change the geometry?
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microelly2
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Re: Shoelast

Postby microelly2 » Sat Mar 18, 2017 3:22 pm

kridhond wrote:Besides the weight of the poles for finetuning, can you drag the knots to change the geometry?


The first method to change the geometry is to change the poles.
This can be done with the Sketcher (there the poles are the centres of the blue circles).

In uniform splines the knots have the same distance in the uv-parameter space.
Changing this leads to non uniform bsplines (Nurbs).
I think this will become possible sometime in the sketcher too.
So we will wait.
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microelly2
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Re: Shoelast

Postby microelly2 » Mon Mar 20, 2017 5:41 pm

At the moment I work with 18 pole profiles.
I still have to go through all 170 interpolation points to get the right starting model without extra sketcher support.
it's stupid but a shoe is not a bolt.

https://youtu.be/oRy9IXxRWL0

I wonder creating a surface with BsplineSurface.interpolate works but Loft brings unexpected results.
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microelly2
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Re: Shoelast

Postby microelly2 » Tue Mar 21, 2017 8:47 pm

the next functionality we needed: draw interactive onto a nonplanar surface
bp_428.png
bp_428.png (191.67 KiB) Viewed 146 times


https://youtu.be/smKidBfJFZ8

I'm looking for a better mouse/keyboard interface to get the Blender Grease Pencil.
My idea: select a face and start drawing with the mouse on it. The resulting curves lies on the face and can be postprocessed to a spline or something else.
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microelly2
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Re: Shoelast

Postby microelly2 » Wed Mar 22, 2017 3:23 pm

move the mouse and press a special key to add an interpolation point to the curve on the preselected surface

bp_429.png
bp_429.png (50.45 KiB) Viewed 119 times

https://youtu.be/TkzhetI0HLQ
kridhond
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Re: Shoelast

Postby kridhond » Thu Mar 23, 2017 6:29 am

Hi there. Once again impressive work! If I could help with anything, let me know.

This new functionality isn't totally clear to me with respect to designing the last (what is it you're thinking about?) but maybe it would be very useful if you wanted to design the (leather) parts that would make up the final shoe.
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microelly2
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Re: Shoelast

Postby microelly2 » Thu Mar 23, 2017 6:45 am

kridhond wrote:Hi there. Once again impressive work! If I could help with anything, let me know.

This new functionality isn't totally clear to me with respect to designing the last (what is it you're thinking about?) but maybe it would be very useful if you wanted to design the (leather) parts that would make up the final shoe.


Yes that's the reason.
Our steps/tasks are:
1. adapt the model to the scan (stupid work, will be done on a late evening :lol:
2. methods to "pad" the last: high level methods for changing the ribs because nobody will change 15 poles (idea: like the Blender lattice operator)
3. methods to design the leather parts (for this the drawing method)

I have at the moment enough information, god give us time.
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microelly2
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Re: Shoelast

Postby microelly2 » Fri Mar 24, 2017 7:34 am

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microelly2
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Re: Shoelast

Postby microelly2 » Sun Mar 26, 2017 10:06 am

microelly2 wrote:Our steps/tasks are:

2. methods to "pad" the last: high level methods for changing the ribs because nobody will change 15 poles (idea: like the Blender lattice operator)



https://youtu.be/UQZCsEjYSTM