few more examples:
[image: Screenshot 2023-08-29 at 10.16.17 PM.png]

[image: Screenshot 2023-08-29 at 10.19.43 PM.png]

[image: Screenshot 2023-08-29 at 10.22.24 PM.png]

[image: Screenshot 2023-08-29 at 10.24.35 PM.png]

[image: Screenshot 2023-08-29 at 10.25.59 PM.png]

On Tue, 29 Aug 2023 at 17:30, Sanjeev Prabhakar sprabhakar2006@gmail.com
wrote:

I made a sine wave box a while ago and even posted it here using BOSL2.  I
was trying to ensure that the box have uniform width so that it would be
exactly the desired number of extrusions and would print nicely and for
that reason, I used offset to make it rather than, say, just displacing the
wall horizontally.  This makes my code really slow.  I designed the box to
be hinged and close with a clasp that uses the sine wave texture to hold it
closed.  Unfortunately, at this size, it doesn't stay closed very well
because the walls are too flexible.  (And part of my intention was to use
thin walls that were stiffened by the texture, so it didn't really achieve
that aim.)

[image: image.png]

On Wed, Aug 30, 2023 at 1:40 AM Sanjeev Prabhakar sprabhakar2006@gmail.com
wrote:

another example
there is no difference() used here
[image: Screenshot 2023-08-30 at 7.00.53 PM.png]

On Wed, 30 Aug 2023 at 18:49, Sanjeev Prabhakar sprabhakar2006@gmail.com
wrote:

The box I show is 220mm long.  I did my printing with 2 perimeters, so
total thickness of 0.8mm.  I wouldn't say the box is weak, exactly, but the
side wall is flexible.  I designed the clasp as shown below so that it
mates with the sine wave texture to lock the box shut, but because of the
flexibility of the side wall, the lock is not satisfactory.  It worked
pretty well when I tested with smaller boxes about 100mm long.

And in answer to Rogier who wants to see it from a different angle, I can
say that this box looks interesting even when you have the 3d printed model
in front of you, with very different appearance possible from different
angles as the light reflects from the texture.

[image: image.png]

On Wed, Aug 30, 2023 at 9:19 AM Sanjeev Prabhakar sprabhakar2006@gmail.com
wrote:

another 2 examples of wrap_around function.
a honeycomb matrix is wrapped in cylindrical form and a blue outline is
drawn around each hexagon.
[image: Screenshot 2023-09-02 at 10.30.15 AM.png]

[image: Screenshot 2023-09-02 at 10.40.43 AM.png]

So there are various applications

On Thu, 31 Aug 2023 at 01:59, Adrian Mariano avm4@cornell.edu wrote:

There is a gap from having "bent" a curve around another curve to actually
making a 3d object.  Creating the hollow cylinder punctured by hexagons is
not a trivial jump from having code that bends a curve.  You need to
somehow triangulate the resulting 3d curve.

Revar has written texture support into BOSL2 where you can put various
repeating textures onto objects.

https://github.com/BelfrySCAD/BOSL2/wiki/skin.scad#function-texture

On Sat, Sep 2, 2023 at 1:13 AM Sanjeev Prabhakar sprabhakar2006@gmail.com
wrote:

Very nice textures
I really wonder how is it done in openscad

On Sat, 2 Sept, 2023, 6:05 pm Adrian Mariano, avm4@cornell.edu wrote: