Sphere Spring (Spherical Spiral) 3D Printer Model

Author: @
License: CC BY
File formats: scad,stl
Download type: zip
Size:261.3KB

The file 'Sphere Spring (Spherical Spiral) 3D Printer Model' is (scad,stl) file type, size is 261.3KB.

Summary

Made in OpenScad using sin and cos:


$fn=7;

pi = 3.14;

k = 57.2;//1 radian

iterations = 400;
turns = 10;
c = turns*2;
r = 1.0;//radius 1 (unit sphere)

ti = 0;
tf = pi*k;
td = tf/iterations;//step

for (t=[ti:td:tf-td]) {

//echo(floor(t/td));t1 = t;t2 = t+td;x1 = r * sin(t1) * cos(c*t1);y1 = r * sin(t1) * sin(c*t1);z1 = r * cos(t1);x2 = r * sin(t2) * cos(c*t2);y2 = r * sin(t2) * sin(c*t2);z2 = r * cos(t2);hull() {    translate([x1,y1,z1]) {        sphere(r=0.05, $fa = .1, $fs = .1);    }    translate([x2,y2,z2]) {        sphere(r=0.05, $fa = .1, $fs = .1);    }}

}

sphere_spring.scad 683.0B
sphere_spring.stl 2.3MB