3d/steffis_frontleuchte.scad

34 lines
769 B
OpenSCAD

include <BOSL/constants.scad>;
use <BOSL/metric_screws.scad>;
$fn=100;
thread = [
4, // diameter
6 // depth
];
thickness = 1.2;
gap = 0.4;
pipe_diameter = 8;
module multi_helix( length, diameter, count = 4) {
factor = 90*length/diameter;
for( f = [factor, -factor])
linear_extrude( length, center = true, slices=length/2, twist = f)
for( i = [0:count-1])
rotate( [0, 0, 360/count*i])
translate( [diameter/2, 0, 0])
children();
}
difference() {
cylinder( h=50, d=20, center=true);
cylinder( h=50+0.1, d=20-2*thickness, center=true);
}
intersection() {
multi_helix( 50, diameter = 20-thickness, count = 4)
translate( [-thickness,0,0])
//circle( d=thickness*4);
square(thickness*2,center=true);
cylinder( h=50, d=20, center=true);
}