From d1ad17135a1573ddf9c11419cfcd35813326f3f8 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 17 Jun 2017 23:29:13 +0100
Subject: [PATCH] ring-tests: wip

---
 ring-tests.scad | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 ring-tests.scad

diff --git a/ring-tests.scad b/ring-tests.scad
new file mode 100644
index 0000000..3c784b7
--- /dev/null
+++ b/ring-tests.scad
@@ -0,0 +1,17 @@
+// -*- C -*-
+
+thick = 3.5;
+width = 5;
+
+// calculated
+
+ellipse_width = width / 0.90;
+
+module Profile(){
+  intersection(){
+    scale([thick, ellipse_width]) circle(r=0.5, $fn=50);
+    square([thick*2, width], center=true);
+  }
+}
+
+Profile();
-- 
2.30.2