From: Jan "Yenya" Kasprzak <kas@fi.muni.cz>
Date: Fri, 20 Jan 2017 15:44:20 +0000 (+0100)
Subject: rc plane wheel
X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=commitdiff_plain;h=973f3d211adaa37648e434444cbf7afe9d1ac2b2;p=things.git

rc plane wheel
---

diff --git a/rc-plane-wheel.scad b/rc-plane-wheel.scad
new file mode 100644
index 0000000..869ca1b
--- /dev/null
+++ b/rc-plane-wheel.scad
@@ -0,0 +1,43 @@
+infty = 100;
+eps = 0.01;
+
+wheel_d = 60;
+wheel_h = 4;
+wheel_thick = 1;
+
+spokes = 5;
+spoke_w =  5;
+spoke_h = 3;
+
+center_d = 8;
+center_hole = 3;
+
+module body() {
+	// rim
+	difference() {
+		cylinder(r = wheel_d/2, h = wheel_h, $fn = 128);
+		translate([0,0,-eps])
+			cylinder(r = wheel_d/2 - wheel_thick, h = wheel_h + 2*eps);
+	}
+
+	// spokes
+	for (a = [0:360/spokes:360-eps]) {
+		rotate([0, 0, a])
+		translate([2, 0, 0])
+		hull() {
+			translate([-spoke_w/2, 0, 0])
+				cube([spoke_w, wheel_d/2 - wheel_thick/2, eps]);
+			translate([-eps/2, 0, spoke_h-eps])
+				cube([eps, wheel_d/2 - wheel_thick/2, eps]);
+		}
+	}
+
+	cylinder(r = center_d/2, h = wheel_h);
+}
+
+difference() {
+	body();
+	// center hole
+	translate([0, 0, -eps])
+		cylinder(r = center_hole/2, h = wheel_h + 2*eps);
+}