From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 15 Sep 2012 21:11:30 +0000 (+0100)
Subject: filamentspool FilamentHandle wip etc.
X-Git-Tag: filamentspool-v2-release~865
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=commitdiff_plain;h=6e7616f48b9fb591cbf58b7f344d74c86d064d5c

filamentspool FilamentHandle wip etc.
---

diff --git a/filamentspool.scad b/filamentspool.scad
index 7c2434e..c88e30c 100644
--- a/filamentspool.scad
+++ b/filamentspool.scad
@@ -1,5 +1,6 @@
 
 slop=0.5;
+bigslop=slop*2;
 
 prongthick=5;
 prongwidth=5;
@@ -13,17 +14,21 @@ overlap=0.5;
 armendwallthick=2.5;
 armendbasethick=1.2;
 
+ratchetpawl=ratchetstep-ratchettooth-bigslop*2;
+
 include <doveclip.scad>
 
-module ArmEnd(length=120){
-  channelwidth = prongthick + slop;
-  channeldepth = prongwidth + ratchettoothheight;
-  totalwidth = armendwallthick*2 + channelwidth;
-  totalheight = channeldepth + armendbasethick;
+channelwidth = prongthick + slop;
+channeldepth = prongwidth + ratchettoothheight;
+totalwidth = armendwallthick*2 + channelwidth;
+totalheight = channeldepth + armendbasethick;
+
+doveclipheight = totalheight;
 
+module ArmEnd(length=120){
   translate([ratchettoothsmoothr, channelwidth/2, -armendbasethick]) {
     rotate([0,0,-90])
-      DoveClipPairBase(h=totalheight);
+      DoveClipPairBase(h=doveclipheight);
   }
 
   for (dx = [0 : ratchetstep : length]) translate([dx,0,0]) {
@@ -46,4 +51,24 @@ module ArmEnd(length=120){
   }
 }
 
-ArmEnd();
+module FilamentHandle(stalklength=50){
+  pawlusewidth = ratchetpawl-ratchettoothsmoothr*2;
+  mirror([0,1,0]) {
+    cube([stalklength, prongwidth, prongthick]);
+    translate([ratchettoothsmoothr, prongwidth, 0]) {
+      minkowski(){
+	cylinder($fn=20,r=ratchettoothsmoothr, h=1);
+	multmatrix([	[	1, -ratchettoothslope, 0, 0	],
+			[	0,	1,	0,	0	],
+			[	0,	0,	1,	0	],
+			[	0,	0,	0,	1	]])
+	  cube([pawlusewidth,
+		ratchettoothheight - ratchettoothsmoothr,
+		prongthick]);
+      }
+    }
+  }
+}
+
+//ArmEnd();
+FilamentHandle();