From c4191f131e15cd12517feaa0cd0ada40fb3b4e1d Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 15 Sep 2012 19:36:59 +0100
Subject: [PATCH] filamentspool wip

---
 filamentspool.scad | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 filamentspool.scad

diff --git a/filamentspool.scad b/filamentspool.scad
new file mode 100644
index 0000000..eb4ee6d
--- /dev/null
+++ b/filamentspool.scad
@@ -0,0 +1,27 @@
+
+slop=0.5;
+
+prongthick=5;
+prongwidth=5;
+ratchetstep=10;
+ratchettooth=3;
+ratchettoothheight=5;
+overlap=0.5;
+
+armendwallthick=2.5;
+armendbasethick=1.2;
+
+module ArmEnd(length=100){
+  channelwidth = prongthick + slop;
+  channeldepth = prongwidth + ratchettoothheight;
+  totalwidth = armendwallthick*2 + channelwidth;
+  totalheight = channeldepth + armendbasethick;
+  difference(){
+    translate([0, -armendwallthick, -armendbasethick])
+      cube([ratchetstep+overlap, totalwidth, totalheight]);
+    translate([-1, 0, 0])
+      cube([ratchetstep+overlap+2, channelwidth, channeldepth+1]);
+  }
+}
+
+ArmEnd();
-- 
2.30.2