X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=filamenttrestle.scad;h=74f6fb609a54a04c646e8f392f346c2e4fe96dcd;hb=23eb021b6712483be842fa8903e68bc6e1088b66;hp=a3643bcc91efc240029b06d96972883aedd446f3;hpb=b96852226f4e31ae9a624a32eeacfc6f36bfe966;p=reprap-play.git

diff --git a/filamenttrestle.scad b/filamenttrestle.scad
index a3643bc..74f6fb6 100644
--- a/filamenttrestle.scad
+++ b/filamenttrestle.scad
@@ -1,27 +1,58 @@
 // -*- C -*-
 
-spoolwidth = 80;
+spoolwidth = 80; // fixme needs to be measured
 
+include <doveclip.scad>
+
+spoolwidthgap = 2;
 barrady = 5;
 barradz = 7;
 guidewidth = 3;
 guiderad = 20;
 
+plugl = 12;
+plugwmin = 4;
+plugh = 10;
+plugslope = 0.5;
+plugwmax = plugwmin + plugh * plugslope;
+
+module Plug(d=0){
+  a = atan(plugslope);
+  tdx = d * cos(a);
+  tdy = d * sin(a);
+  bdx = d / cos(a);
+  rotate([90,0,90]) linear_extrude(height=plugl+0.1){
+    polygon([[-(plugwmax + bdx),  0],
+	     [-(plugwmin + tdx),  plugh + tdy],
+	     [+(plugwmin + tdx),  plugh + tdy],
+	     [+(plugwmax + bdx),  0]]);
+  }
+  translate([plugl + DoveClip_depth()*0.7, 0, 0])
+    DoveClipPairSane(count=1, h=plugh);
+}
+
 module Bar(){
-  barlen = spoolwidth + guidewidth;
+  spoolw = spoolwidth + spoolwidthgap*2;
   barz = barradz * 0.5;
+  biggestw = spoolw + 50;
 
   intersection(){
     for (mir=[0,1]) {
       mirror([mir,0,0]) {
-	translate([-1,0,barz])
-	  scale([1,barrady,barradz])
-	  rotate([0,90,0]) cylinder(r=1, h=barlen+2, $fn=30);
+	translate([0,0,barz]) {
+	  scale([1,barrady,barradz]) translate([-1,0,0])
+	    rotate([0,90,0]) cylinder(r=1, h=spoolw/2+2, $fn=30);
+	  translate([spoolw/2,0,0])
+	    rotate([0,90,0]) cylinder(r=guiderad, h=guidewidth, $fn=60);
+	}
+	translate([spoolw/2 + guidewidth, 0, 0])
+	  Plug();
       }
     }
-    translate([-barlen, -50, 0])
-      cube([barlen*2, 100, 100]);
+    translate([-biggestw/2, -50, 0])
+      cube([biggestw, 100, 100]);
   }
 }
 
 Bar();
+//Plug(d=1);