[OpenSCAD] DXF for cut and engrave
nop.head at gmail.com
Wed Oct 30 17:44:15 EDT 2019
Brilliant idea, except perhaps the other way up. Produce a 3D STL and
process it to 2D plus grayscale by removing all the vertices and edges that
are at 0 and converting the remaining to 2D SVG paths with a colour value
derived from the Z coordinate.
On Wed, 30 Oct 2019 at 13:36, Parkinbot <rudolf at digitaldocument.de> wrote:
> Troberg wrote
> > The problem is that as soon as they have a width, the laser will cut
> > twice.
> A somewhat odd but viable solution to "implement" zero-width lines that
> comes into my mind, would be to create and output a 3D model and feed just
> the lines that are on the [x,y,0] plane into the laser cutter. In an STL
> output you would then find and sort/connect all vertices and edges that
> their Z coordinate set to 0 into pathes.
> The implementation of the line() primitive would then be, e.g.:
> a = [1,1, 0];
> b = [0,12, 0];
> line(a, b, 0.01, 3);
> module line(p, q, width=0.1, height=1)
> v = q-p;
> normal = [-v, v, 0];
> un = normal/norm(normal)*width/2;
> n = [un, un, height];
> n1 = [-un, -un, height];
> points=[p, p+n, p+n1, q, q+n, q+n1];
> faces=[[0,1,2], [3,5,4], [0, 3, 4, 1], [0, 2, 5, 3], [2, 1, 4, 5]];
> A multiline() implementation of this is straightforward. Going a step
> further, one could interpret laser intensity via the height parameter.
> Sent from: http://forum.openscad.org/
> OpenSCAD mailing list
> Discuss at lists.openscad.org
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Discuss