Example file for issue #95

1 files changed, 128 insertions, 0 deletions

diff --git a/testdata/scad/bugs/issue95-normalization-crash.scad b/testdata/scad/bugs/issue95-normalization-crash.scad
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+#
+# Reported by Triffid Hunter.
+# Causes a crash in CCGTermNormalizer::normalizePass()
+#
+
+pi = 3.141592653589;
+sl = 0.5;
+
+w = 400;
+
+pulley_diam = 28;
+bearing_diam = 22; //include size of bearing guides
+
+module crx(size=[1, 1, 1]) {
+	linear_extrude(height=size[2])
+	square([size[0], size[1]], center=true);
+}
+
+module cyl(r=1, h=1, center=false) {
+	cylinder(r=r, h=h, center=center, $fn=r * 2 * pi / sl);
+}
+
+module lm8uu() {
+	cyl(r=15 /2, h=24);
+}
+
+module nema17() {
+	translate([0, 0, -48]) crx([42, 42, 48]);
+	translate([0, 0, -1]) {
+		cyl(r=2.5, h=26);
+		cyl(r=22.5 / 2, h=3.1);
+	}
+	translate([0, 0, 2.1]) {
+		difference() {
+			cyl(r=pulley_diam / 2, h=11.5);
+			translate([0, 0, (11.5 - 8) / 2]) rotate_extrude()
+				translate([21.5 / 2, 0])
+					square(8);
+		}
+	}
+	cyl(r=17.5 / 2, h=19.5);
+	for (i=[0:3]) {
+		rotate([0, 0, i * 90])
+		translate([31 / 2, 31 / 2, -1]) {
+			cyl(r=1.5, h=11);
+			translate([0, 0, 5.5])
+				cyl(r=4, h=30);
+		}
+	}
+}
+
+module bearing608() {
+	cyl(r=bearing_diam / 2, h = 7);
+}
+
+module rods() {
+	for (i=[0:1]) {
+		translate([25, 0, i * 70])
+			rotate([0, -90, 0])
+				cyl(r=4, h=420);
+	}
+	
+	translate([0, 10, -40]) {
+		cyl(r=3, h=150);
+		translate([0, 0, 34]) cylinder(r=10 / cos(180 / 6) / 2, h=6, $fn=6);
+	}
+	
+	translate([30, 10, -40]) {
+		cyl(r=4, h=150);
+	}
+}
+
+module lm8uu_holder() {
+	render()
+	difference() {
+		union() {
+			translate([0, 0, -13]) difference() {
+				hull() {
+					translate([-9, -9, -1]) cube([18, 1, 28]);
+					translate([0, 1, -1]) cyl(r=18 / 2, h = 28);
+				}
+				translate([-10, 5, -1]) cube([20, 10, 28]);
+				translate([-10, -3, 11 - 5]) cube([20, 20, 4]);
+				translate([-10, -3, 11 + 5]) cube([20, 20, 4]);
+			}
+		}
+		translate([0, 0, -11]) {
+			hull() {
+				#lm8uu();
+				translate([0, 10, 0]) cyl(r=6, h=24);
+			}
+			translate([0, 0, -3]) hull() {
+				cyl(r=5, h=30);
+				translate([0, 10, 0]) cyl(r=5, h=30);
+			}
+		}
+	}
+}
+
+module x_end_motor() {
+	difference() {
+		union() {
+			translate([-10, -18, -19]) #cube([50, 2, 90]);
+			translate([30, 10, 60]) lm8uu_holder();
+			translate([30, 10, -5]) lm8uu_holder();
+		}
+		#rods();
+		
+		translate([15.5, -19, 14]) {
+			rotate([90, 0, 0]) cyl(r=30 / 2, h= 50, center=true);
+			rotate([-90, 45, 0])
+				#nema17();
+			translate([-w, 4, 0])
+				rotate([-90, 0, 0])
+					bearing608();
+			translate([0, 5, 0]) hull() {
+				#translate([0, 0, 24 / 2 - 1.5]) cube([1, 5, 1.5]);
+				#translate([-w, 0, bearing_diam / 2 ]) cube([1, 5, 1.5]);
+			}
+			translate([0, 5, 0]) hull() {
+				#translate([0, 0, 24 / -2]) cube([1, 5, 1.5]);
+				#translate([-w, 0, bearing_diam / -2 - 1.5]) cube([1, 5, 1.5]);
+			}
+		}
+	}
+}
+
+x_end_motor();
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