X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=filamentspool.scad;h=4c930fddb2d2b203084111a7449923fa97dad396;hp=c5b625cecd12bcc49b282bc0be71db68e95b1e99;hb=6610e5b1c41deb8136b2092e2577ebc7dbf4cd12;hpb=c90650b346f2a8dbee7b816b9eb77beef2ff7861

diff --git a/filamentspool.scad b/filamentspool.scad
index c5b625c..4c930fd 100644
--- a/filamentspool.scad
+++ b/filamentspool.scad
@@ -5,6 +5,14 @@ fdia=1.75;
 slop=0.5;
 bigslop=slop*2;
 
+hubeffrad = 30; // + 55;
+hubbigrad = 20;
+hublwidth = 3;
+hubstemwidth = 2;
+hublthick = 10;
+hubaxlelen = 25;
+hubaxlerad = 5;
+
 prongthick=5;
 prongwidth=5;
 ratchetstep=15;
@@ -32,13 +40,13 @@ overclipdepth=15;
 overcliproundr=2.0;
 overclipthick=0.5;
 
+overclipsmaller=-2.5;
+overclipbigger=0.0;
+
 wingspoke=3;
 wingsize=6;
 wingthick=3;
 
-overclipsmaller=-1.0;
-overclipbigger=2.0;
-
 armendwallthick=2.5;
 armendbasethick=1.2;
 
@@ -169,7 +177,7 @@ module CupSecuringClip(){
 	cube([wingswidth, wingsize, wingthick]);
     }
     translate([0,0,-0.1])
-      CupSecuringClipSolidSmooth(xrad=0, xdepth=5);
+      CupSecuringClipSolidSmooth(xrad=0, xdepth=0.2);
   }
 }
 
@@ -177,6 +185,45 @@ module ArmDoveClipPin(){
   DoveClipPin(h=doveclipheight);
 }
 
+module Hub(){
+  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 = DoveClip_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]]);
+    }
+}
+
 //ArmEnd();
 //FilamentCup();
 //CupSecuringClip();
+
+Hub();