From 8b8207b86d1d089e3245c789c4d7f7c5013e195f Mon Sep 17 00:00:00 2001
From: maride <git@maride.cc>
Date: Mon, 7 Dec 2020 00:13:07 +0100
Subject: [PATCH] Add Cinema chair foot

---
 kinokreuz.scad | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 kinokreuz.scad

diff --git a/kinokreuz.scad b/kinokreuz.scad
new file mode 100644
index 0000000..3c2cf96
--- /dev/null
+++ b/kinokreuz.scad
@@ -0,0 +1,68 @@
+include </home/maride/Projekte/3dlib/rohr.scad>
+
+CIRCLE_RADIUS = 140;
+ELLIPSE_LONG_RADIUS = 200;
+
+BEARING_X_SPACING = 200;
+BEARING_Y_SPACING = 150;
+BEARING_DIAMETER = 18; // naja
+
+$fn = 36;
+
+// Bodenplatte
+module theEgg() {
+    linear_extrude(height = 1)
+    difference() {
+        // The egg
+        union() {
+            // Circle
+            circle(r = CIRCLE_RADIUS);
+
+            difference() {
+                // Ellipse    
+                scale([1, ELLIPSE_LONG_RADIUS / CIRCLE_RADIUS, 1])
+                circle(r = CIRCLE_RADIUS);
+                
+                translate([0, -ELLIPSE_LONG_RADIUS, 0])
+                square(ELLIPSE_LONG_RADIUS*2, center=true);
+            }
+        }
+        
+        // Holes in the egg
+        translate([ BEARING_X_SPACING/2, 0, 0])
+        circle(d = BEARING_DIAMETER);
+        translate([-BEARING_X_SPACING/2, 0, 0])
+        circle(d = BEARING_DIAMETER);
+        translate([0, BEARING_Y_SPACING, 0])
+        circle(d = BEARING_DIAMETER);
+    }
+}
+
+translate([0, 0, -15]) color("red") theEgg();
+
+// Sitzfläche
+translate([0, 200, -15]) color("green") cube([480, 420, 1], true);
+
+// Now the important part, the frame
+
+// Rolls X Rod -1
+translate([-15, 0, 0])
+rotate([0, 0, 90])
+rohr(R_30x30, 185);
+// Rolls X Rod -2
+translate([15, 0, 0])
+rotate([0, 0, -90])
+rohr(R_30x30, 185);
+
+// Rolls X Rod 1
+translate([-15, 200, 0])
+rotate([0, 0, 90])
+rohr(R_30x30, 185);
+// Rolls X Rod 2
+translate([15, 200, 0])
+rotate([0, 0, -90])
+rohr(R_30x30, 185);
+
+// Main Y Rod
+translate([0, -200, 0])
+rohr(R_30x30, 600);