wine-vacuum-adapter: wip

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/wine-vacuum-adapter.scad b/wine-vacuum-adapter.scad
new file mode 100644 (file)
index 0000000..4e24a6a
--- /dev/null
+++ b/wine-vacuum-adapter.scad
@@ -0,0 +1,29 @@
+// -*- C -*-
+
+india_nom = 27.0;
+india_slop = 0.35;
+
+middia_nom = 31.0;
+middia_slop = 0.5;
+
+outdia = 44.0;
+
+htop = 5;
+hbot = 7;
+
+// calculated
+
+india_use = india_nom - india_slop;
+middia_use = middia_nom + middia_slop;
+
+module Plan() {
+  polygon([[ india_use/2,    -hbot ],
+          [ outdia/2,       -hbot ],
+          [ outdia/2,       0     ],
+          [ middia_use/2,   0     ],
+          [ middia_use/2,   htop  ],
+          [ india_use/2,    htop  ]]);
+}
+
+Plan();
+