X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=filamentspool.scad;h=8dd6b791524cf605e0bf8d213109fdbfed132f0f;hb=51f330faca99347f2f91e2ce1f8fc8e02bfbb33c;hp=487d853b0645b524d5d6ca1f7dc8a0f8aa016b39;hpb=df4da45dbd990257651abc7ec5198400cda2b0bb;p=reprap-play.git

diff --git a/filamentspool.scad b/filamentspool.scad
index 487d853..8dd6b79 100644
--- a/filamentspool.scad
+++ b/filamentspool.scad
@@ -5,13 +5,18 @@ fdia=1.75;
 slop=0.5;
 bigslop=slop*2;
 
-hubeffrad = 30; // + 55;
+exteffrad = 70;
+hubeffrad = 30;
 hubbigrad = 20;
 hublwidth = 3;
 hubstemwidth = 2;
 hublthick = 10;
 hubaxlelen = 25;
 hubaxlerad = 5;
+totalheightfromtower = 240;
+axletowerfudgebend = 0;
+axleaxlefudgebend = 3;
+axlepadlen = 1.0;
 
 prongthick=5;
 prongwidth=5;
@@ -50,6 +55,18 @@ wingthick=3;
 armendwallthick=2.5;
 armendbasethick=1.2;
 
+axlehorizoffset = 12.5;
+axlevertheight = 100;
+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>
@@ -197,7 +214,7 @@ module Hub(){ ////toplevel
     translate([0,0,-1]) cylinder($fn=60, h=hubaxlelen+2, r=axlerad);
   }
   hole = hubeffrad - hubbigrad - DoveClip_depth() - hublwidth*2;
-  holewidth = DoveClip_width() - hubstemwidth*2;
+  holewidth = DoveClipPairSane_width() - hubstemwidth*2;
   for (ang=[0,120,240])
     rotate([0,0,ang]) {
       difference() {
@@ -222,7 +239,95 @@ module Hub(){ ////toplevel
     }
 }
 
+module ArmExtender(){ ////toplevel
+  DoveClipExtender(length=exteffrad-hubeffrad,
+		   ha=doveclipheight,
+		   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)
+  rotate([0,0, -( axleaxlefudgebend + atan(slop/hubaxlelen) ) ])
+  translate([-axlehorizoffset, -axlevertheight, 0]) {
+    rotate([0,0,-axletowerfudgebend])
+    rotate([0,0,-90])
+      DoveClipPairSane(h=towercliph, count=towerclipcount, baseextend=3);
+    translate([0, DoveClip_depth(), 0])
+    rotate([0,0,90])
+      ExtenderPillars(axlevertheight - DoveClip_depth(),
+		      pillarswidth, towercliph,
+		      pillarw=towerpillarw);
+  }
+
+  axleclearlen = hubaxlelen + slop*4 + washerthick*2 + axlepadlen;
+  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 + slop, 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);
+  }
+}
+
+module TowerExtender(){ ////toplevel
+  l = totalheightfromtower - axlevertheight;
+  echo("TowerExtender",l);
+  DoveClipExtender(length = l,
+		   ha = towercliph, hb = towercliph,
+		   counta = towerclipcount, countb = towerclipcount,
+		   pillarw = towerpillarw);
+}
+
 //ArmEnd();
 //FilamentCup();
 //CupSecuringClip();
 //Hub();
+//ArmExtender();
+//Axle();
+//AxleWasher();
+//AxlePin();