X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;ds=inline;f=filamentspool.scad;h=89f3cfb3a0ac97e069efddde6a57a01fd7fb87d7;hb=9b824b304dfc50b89172ec9dbf53b0076e526097;hp=937310b39511daf31b1f22fc722d27463eb3e055;hpb=8a067f59d4f8f318ebb1b94cb6fda67a663bdde3;p=reprap-play.git

diff --git a/filamentspool.scad b/filamentspool.scad
index 937310b..89f3cfb 100644
--- a/filamentspool.scad
+++ b/filamentspool.scad
@@ -5,7 +5,7 @@ fdia=1.75;
 slop=0.5;
 bigslop=slop*2;
 
-exteffrad = 85;
+exteffrad = 70;
 hubeffrad = 30;
 hubbigrad = 20;
 hublwidth = 3;
@@ -57,6 +57,12 @@ towercliph = 16;
 towerclipcount = 3;
 towerpillarw = 5;
 
+axlepinrad = 2;
+axlepintabrad = 5;
+
+washerthick = 1.2;
+washerrad = hubaxlerad + 7.5;
+
 ratchetpawl=ratchetstep-ratchettooth-bigslop*2;
 
 include <doveclip.scad>
@@ -235,9 +241,23 @@ module ArmExtender(){ ////toplevel
 		   hb=doveclipheight);
 }
 
+module AxlePin(){ ////toplevel
+  pinr = axlepinrad - slop;
+  intersection(){
+    translate([0, 0, pinr*0.7]) {
+      translate([0, -washerrad, 0]) rotate([-90,0,0])
+	cylinder(r=pinr, h=washerrad*2, $fn=10);
+      translate([-axlepintabrad, hubaxlerad, -axlepinrad])
+	cube([axlepintabrad*2, axlepinrad*2, axlepinrad*2]);
+    }
+    translate([-50,-50,0]) cube([100,100,50]);
+  }
+}
+
 module Axle(){ ////toplevel
   pillarswidth = DoveClipPairSane_width(towerclipcount);
 
+if(0)
   translate([-axlehorizoffset, -axlevertheight, 0]) {
     rotate([0,0,-90])
       DoveClipPairSane(h=towercliph, count=towerclipcount, baseextend=3);
@@ -247,6 +267,45 @@ module Axle(){ ////toplevel
 		      pillarswidth, towercliph,
 		      pillarw=towerpillarw);
   }
+
+  axleclearlen = hubaxlelen + slop*3 + washerthick*2;
+  axlerad = hubaxlerad-slop;
+  bump = axlerad * 0.2;
+  shift = axlerad-bump;
+  joinbelowallow = 3;
+
+  intersection(){
+    translate([0, 0, shift]) {
+      difference() {
+	union(){
+	  translate([-1, 0, 0])
+	    rotate([0,90,0])
+	    cylinder(r = axlerad, h = 1 + axleclearlen + 3 + 2);
+	  mirror([1,0,0]) rotate([0,90,0])
+	    cylinder(r = washerrad, h = 3);
+if(0)
+	  intersection(){
+	    mirror([1,0,0]) rotate([0,90,0])
+	      cylinder(r = towercliph - shift,
+		       h = pillarswidth/2 + axlehorizoffset);
+	    translate([-50, -joinbelowallow, -50])
+	      cube([100, joinbelowallow+50, 100]);
+	  }
+	}
+	rotate([90,0,0])
+	translate([axleclearlen + axlepinrad/2, 0, -25])
+	  cylinder(r=axlepinrad, h=50);
+      }
+    }
+    translate([-50,-50,0]) cube([100,100,100]);
+  }
+}
+
+module AxleWasher(){ ////toplevel
+  difference(){
+    cylinder(h=washerthick, r=washerrad);
+    translate([0,0,-1]) cylinder(h=washerthick+2, r=hubaxlerad+slop);
+  }
 }
 
 //ArmEnd();
@@ -254,4 +313,6 @@ module Axle(){ ////toplevel
 //CupSecuringClip();
 //Hub();
 //ArmExtender();
-Axle();
+//Axle();
+//AxleWasher();
+//AxlePin();