From: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Date: Thu, 14 Jan 2021 16:43:04 +0000 (+0100)
Subject: quasar fuselage triangle
X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?p=things.git;a=commitdiff_plain;h=229cf16e0964440f2f931a738d9031d00ec32332

quasar fuselage triangle
---

diff --git a/quasar-triangle.scad b/quasar-triangle.scad
new file mode 100644
index 0000000..4ed5f32
--- /dev/null
+++ b/quasar-triangle.scad
@@ -0,0 +1,59 @@
+infty = 200;
+eps = 0.01;
+
+wall = 1.2;
+base_w = 4;
+thin_wall = 0.6;
+body_h = 4;
+
+module tbar() {
+	translate([-infty/4, 0, 0]) {
+		cube([infty/2, base_w, thin_wall]);
+		cube([infty/2, thin_wall, body_h]);
+		hull() {
+			translate([0, 0.7*base_w, 0])
+				cube([infty/2, thin_wall, eps]);
+			translate([0, 0, body_h-eps])
+				cube([infty/2, thin_wall, eps]);
+		}
+	}
+}
+
+module side_cube() {
+	translate([-infty/2, 0, -eps])
+		cube([infty, infty, body_h+2*eps]);
+}
+
+module triangle(w, h) {
+	intersection() {
+		union() {
+			tbar();
+			translate([w/2, 0, 0])
+			rotate([0, 0, 90+atan(w/(2*h))])
+			translate([infty/5, 0, 0])
+				tbar();
+			translate([-w/2, 0, 0])
+			rotate([0, 0, -90-atan(w/(2*h))])
+			translate([-infty/5, 0, 0])
+				tbar();
+		}
+			side_cube();
+			translate([w/2, 0, 0])
+			rotate([0, 0, 90+atan(w/(2*h))])
+			translate([infty/5, 0, 0])
+				side_cube();
+			translate([-w/2, 0, 0])
+			rotate([0, 0, -90-atan(w/(2*h))])
+			translate([-infty/5, 0, 0])
+				side_cube();
+	}
+}
+
+triangle(50, 80);
+translate([50, 0, 0])
+triangle(40, 70);
+translate([85, 0, 0])
+triangle(15, 50);
+translate([105, 0, 0])
+triangle(15, 70);
+