X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=filamentspool.scad;h=24ceded6e9437a6620b0c4baa176c63d4dffd3ff;hp=7f7c25540b9ed014ba79dfa8012723afaae8a99a;hb=0d14556842c73a5b0459fe3d44c55b6bb329bfc1;hpb=a1b9836649a4950b72135196832cf15f01f76f65

diff --git a/filamentspool.scad b/filamentspool.scad
index 7f7c255..24ceded 100644
--- a/filamentspool.scad
+++ b/filamentspool.scad
@@ -5,6 +5,13 @@ fdia=1.75;
 slop=0.5;
 bigslop=slop*2;
 
+hubeffrad = 30;
+hubbigrad = 20;
+hublwidth = 4;
+hublthick = 10;
+hubaxlelen = 25;
+hubaxlerad = 5;
+
 prongthick=5;
 prongwidth=5;
 ratchetstep=15;
@@ -32,8 +39,8 @@ overclipdepth=15;
 overcliproundr=2.0;
 overclipthick=0.5;
 
-overclipsmaller=-1.0;
-overclipbigger=2.0;
+overclipsmaller=-2.5;
+overclipbigger=0.0;
 
 wingspoke=3;
 wingsize=6;
@@ -169,7 +176,7 @@ module CupSecuringClip(){
 	cube([wingswidth, wingsize, wingthick]);
     }
     translate([0,0,-0.1])
-      CupSecuringClipSolidSmooth(xrad=0, xdepth=5);
+      CupSecuringClipSolidSmooth(xrad=0, xdepth=0.2);
   }
 }
 
@@ -177,6 +184,33 @@ module ArmDoveClipPin(){
   DoveClipPin(h=doveclipheight);
 }
 
+module Hub(){
+  difference(){
+    cylinder(h=hublthick, r=hubbigrad);
+    translate([0,0,-1]) cylinder(h=hublthick+2, r=(hubbigrad-hublwidth));
+  }
+  axlerad = hubaxlerad + slop;
+  difference(){
+    cylinder(h=hubaxlelen, r=axlerad+hublwidth);
+    translate([0,0,-1]) cylinder(h=hubaxlelen+2, r=axlerad);
+  }
+  for (ang=[0,120,240])
+    rotate([0,0,ang]) {
+      translate([hubeffrad,0,0])
+	DoveClipPairSane(h=doveclipheight,
+			 baseextend = (hubeffrad - DoveClip_depth()
+				       - hubbigrad + hublwidth));
+    }
+  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], [xmax,0], [xmax,hublthick], [xmin,hubaxlelen]]);
+    }
+}
+
 //ArmEnd();
 //FilamentCup();
 //CupSecuringClip();