X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=filamentspool.scad;h=937310b39511daf31b1f22fc722d27463eb3e055;hb=2c35b2a06e88a3628b1dfe3c6f95d24d44c90673;hp=7f7c25540b9ed014ba79dfa8012723afaae8a99a;hpb=a1b9836649a4950b72135196832cf15f01f76f65;p=reprap-play.git

diff --git a/filamentspool.scad b/filamentspool.scad
index 7f7c255..937310b 100644
--- a/filamentspool.scad
+++ b/filamentspool.scad
@@ -5,6 +5,15 @@ fdia=1.75;
 slop=0.5;
 bigslop=slop*2;
 
+exteffrad = 85;
+hubeffrad = 30;
+hubbigrad = 20;
+hublwidth = 3;
+hubstemwidth = 2;
+hublthick = 10;
+hubaxlelen = 25;
+hubaxlerad = 5;
+
 prongthick=5;
 prongwidth=5;
 ratchetstep=15;
@@ -32,8 +41,8 @@ overclipdepth=15;
 overcliproundr=2.0;
 overclipthick=0.5;
 
-overclipsmaller=-1.0;
-overclipbigger=2.0;
+overclipsmaller=-2.5;
+overclipbigger=0.0;
 
 wingspoke=3;
 wingsize=6;
@@ -42,6 +51,12 @@ wingthick=3;
 armendwallthick=2.5;
 armendbasethick=1.2;
 
+axlehorizoffset = 12.5;
+axlevertheight = 80;
+towercliph = 16;
+towerclipcount = 3;
+towerpillarw = 5;
+
 ratchetpawl=ratchetstep-ratchettooth-bigslop*2;
 
 include <doveclip.scad>
@@ -54,7 +69,7 @@ totalwidth = armendwallthick*2 + channelwidth;
 totalheight = channeldepth + armendbasethick;
 stalkwidth = prongwidth + prongstalkxwidth;
 
-module ArmEnd(length=120){
+module ArmEnd(length=120){ ////toplevel
   translate([ratchettoothsmoothr, channelwidth/2, -armendbasethick]) {
     rotate([0,0,-90])
       DoveClipPairBase(h=doveclipheight);
@@ -114,7 +129,7 @@ module FilamentCupCup(){
   }
 }
 
-module FilamentCup() {
+module FilamentCup() { ////toplevel
   FilamentCupHandle();
 
   dx = cupbigrad + prongwidth;
@@ -160,7 +175,7 @@ module CupSecuringClipSolidSmooth(xrad=0, xdepth=0){
   }
 }
 
-module CupSecuringClip(){
+module CupSecuringClip(){ ////toplevel
   wingswidth = wingspoke*2 + overclipthick*2 + overcliproundr*2 + totalwidth;
   difference(){
     union(){
@@ -169,14 +184,74 @@ module CupSecuringClip(){
 	cube([wingswidth, wingsize, wingthick]);
     }
     translate([0,0,-0.1])
-      CupSecuringClipSolidSmooth(xrad=0, xdepth=5);
+      CupSecuringClipSolidSmooth(xrad=0, xdepth=0.2);
   }
 }
 
-module ArmDoveClipPin(){
+module ArmDoveClipPin(){ ////toplevel
   DoveClipPin(h=doveclipheight);
 }
 
+module Hub(){ ////toplevel
+  difference(){
+    cylinder($fn=60, h=hublthick, r=hubbigrad);
+    translate([0,0,-1])
+      cylinder($fn=30, h=hublthick+2, r=(hubbigrad-hublwidth));
+  }
+  axlerad = hubaxlerad + slop;
+  difference(){
+    cylinder(h=hubaxlelen, r=axlerad+hublwidth);
+    translate([0,0,-1]) cylinder($fn=60, h=hubaxlelen+2, r=axlerad);
+  }
+  hole = hubeffrad - hubbigrad - DoveClip_depth() - hublwidth*2;
+  holewidth = DoveClipPairSane_width() - hubstemwidth*2;
+  for (ang=[0,120,240])
+    rotate([0,0,ang]) {
+      difference() {
+	translate([hubeffrad,0,0])
+	  DoveClipPairSane(h=doveclipheight,
+			   baseextend = (hubeffrad - DoveClip_depth()
+					 - hubbigrad + hublwidth));
+	if (hole>hublwidth && holewidth > 2) {
+	  translate([hubbigrad + hublwidth, -holewidth/2, -1])
+	    cube([hole, holewidth, hublthick+2]);
+	}
+      }
+    }
+  xmin = axlerad+hublwidth/2;
+  xmax = hubbigrad-hublwidth/2;
+  for (ang = [0 : 60 : 359])
+    rotate([0,0,ang]) rotate([90,0,0]) {
+      translate([0,0,-hublwidth/2])
+	linear_extrude(height=hublwidth)
+	polygon([[xmin,0.05], [xmax,0.05],
+		 [xmax,hublthick-0.2], [xmin, hubaxlelen-0.2]]);
+    }
+}
+
+module ArmExtender(){ ////toplevel
+  DoveClipExtender(length=exteffrad-hubeffrad,
+		   ha=doveclipheight,
+		   hb=doveclipheight);
+}
+
+module Axle(){ ////toplevel
+  pillarswidth = DoveClipPairSane_width(towerclipcount);
+
+  translate([-axlehorizoffset, -axlevertheight, 0]) {
+    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);
+  }
+}
+
 //ArmEnd();
 //FilamentCup();
 //CupSecuringClip();
+//Hub();
+//ArmExtender();
+Axle();