How to create a Spiral structure object with OpenSCAD

This article mainly introduces "how to create spiral structure objects with OpenSCAD". In daily operation, I believe many people have doubts about how to create spiral structure objects with OpenSCAD. The editor consulted all kinds of materials and sorted out simple and easy-to-use operation methods. I hope it will be helpful to answer the doubts about "how to create spiral structure objects with OpenSCAD". Next, please follow the editor to study!

OpenSCAD can not only quickly create cubes, cones, spheres, ellipsoids, polygons, etc., but also create spirals through programming, looping and other features, such as common bolts, screw holes, etc., as shown in the following figure:

The following is the code for modeling:

Module screw (type = 2, R1 = 15, R2 = 20, n = 7, h = 100, t = 8) {linear_extrude (height = h, twist = 360*t/n, convexity = t) difference () {circle (R2) For (I = [0:n-1]) {if (type = = 1) rotate (iFei 360) polygon ([[2*r2, 0], [R2, 0] [r1*cos (180), r1*sin (180)], [r2*cos (360), r2*sin (360)], [2*r2*cos (360)) 2*r2*sin (360)],]) If (type = = 2) rotate (iPay 360) polygon ([[2*r2, 0], [R2, 0], [r1*cos (90)) R1*sin (90)], [r1*cos (180), r1*sin (180)], [r2*cos (270)), r2*sin (270)] [2*r2*cos (270Pay), 2*r2*sin (270PUBO)],]) } module nut (type = 2, R1 = 16, R2 = 21, R3 = 30, s = 6, n = 7, h = 100x5, t = 8) {difference () {cylinder ($fn = s, r = R3, h = h); translate ([0,0,-hap2]) screw (type, R1, R2, n, hue 2, tweak 2) }} module spring (R1 = 100, R2 = 10, h = 100, hr = 12) {stepsize = 1Comp16; module segment (i1, i2) {alpha1 = i1 * 360 * R2; alpha2 = i2 * 360; len1 = sin (acos (i1, i1)) * R2 Len2 = sin (acos (i2polar 2-1)) * R2; if (len1

< 0.01) polygon([ [ cos(alpha1)*r1, sin(alpha1)*r1 ], [ cos(alpha2)*(r1-len2), sin(alpha2)*(r1-len2) ], [ cos(alpha2)*(r1+len2), sin(alpha2)*(r1+len2) ] ]); if (len2 < 0.01) polygon([ [ cos(alpha1)*(r1+len1), sin(alpha1)*(r1+len1) ], [ cos(alpha1)*(r1-len1), sin(alpha1)*(r1-len1) ], [ cos(alpha2)*r1, sin(alpha2)*r1 ], ]); if (len1 >

Polygon ([cos (alpha1) * (r1+len1), sin (alpha1) * (r1+len1)], [cos (alpha1) * (r1-len1), sin (alpha1) * (r1-len1)] [cos (alpha2) * (r1-len2), sin (alpha2) * (r1-len2)], [cos (alpha2) * (r1+len2), sin (alpha2) * (r1+len2)]) } linear_extrude (height = 100, twist = 180*h/hr, $fn = (hr/r2) / stepsize, convexity = 5) {for (I = [stepsize: stepsize: 1+stepsize/2]) segment (i-stepsize, min (I, 1));} translate ([- 30,0,0]) screw () Translate ([30,0,0]) nut (); spring ()

The above geometry generation code uses module to encapsulate geometric objects, which is a very useful feature of the new OpenSCAD. Components can be defined as a Module and then repeated when in use, which is very convenient to create objects with a large number of regular geometric shapes.

At this point, the study on "how to use OpenSCAD to create spiral structure objects" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!