filamenttrestle new bar

[reprap-play.git] / filamenttrestle.scad

diff --git a/filamenttrestle.scad b/filamenttrestle.scad
index c45e8af5472f4e58201ee466c5b970a9019b49aa..340a6d5e1ef46887bbe64aa4e335237ab3daed5e 100644 (file)
--- a/filamenttrestle.scad
+++ b/filamenttrestle.scad
@@ -5,12 +5,12 @@ trestleheight = 80; // fixme needs to be checked
 trestlebase = 80; // fixme needs to be checked
 
 include <doveclip.scad>
+include <axlepin.scad>
 
-spoolwidthgap = 2;
-barrady = 5;
-barradz = 7;
-guidewidth = 3;
-guiderad = 20;
+spoolinnerslop = 2;
+
+barrad = 7;
+barwasherrad = 17;
 
 legw = 12;
 plugl = 20;
@@ -24,56 +24,79 @@ trestlebaseh = 10;
 trestleplugd = 1;
 
 topblockthick = 4;
-topblockbasedepth = 4;
+topblockbasedepth = 5;
 
 pinbasew = 5.0;
 pinminh = 1.5;
-pinmaxh = 4.0;
-pindh = 0.75;
+pinmaxh = 4.5;
+pindh = 0.50;
 pindwidth = 0.75;
 
 pintaperlen = plugwmax * 0.85;
 pinstraightlen = 10;
 
+spoolouterpad = AxlePin_holerad()*2 * 1.5;
+spoolbarlen = spoolwidth +
+  2*(Washer_thick() + AxlePin_holerad() + spoolinnerslop + spoolouterpad);
+
 module Plug(d=0){
   dw = d;
   dh = d;
+  dhb = d*2;
   a = atan(plugslope);
-  bdx = dw / cos(a);
+  bdy = -dhb;
+  bdx = dw / cos(a) + bdy * plugslope;
   tdy = dh;
-  tdx = bdx + dh * plugslope;
+  tdx = bdx + tdy * plugslope;
   translate([-d,0,0]) rotate([90,0,90]) linear_extrude(height=plugl+0.1+d*2){
-    polygon([[-(plugwmin/2 + bdx),  0],
+    polygon([[-(plugwmin/2 + bdx),  bdy],
             [-(plugwmax/2 + tdx),  plugh + tdy],
             [+(plugwmax/2 + tdx),  plugh + tdy],
-            [+(plugwmin/2 + bdx),  0]]);
+            [+(plugwmin/2 + bdx),  bdy]]);
   }
 }
 
-module Bar(){
-  spoolw = spoolwidth + spoolwidthgap*2;
-  barz = barradz * 0.5;
+module Bar(){ ////toplevel
+  spoolw = spoolbarlen;
+  barz = barrad * 0.5;
   biggestw = spoolw + 50;
 
   intersection(){
     for (mir=[0,1]) {
       mirror([mir,0,0]) {
-       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])
+       translate([spoolw/2, 0, 0])
          Plug();
+       translate([-1, -50, -50])
+         cube([spoolw/2+1.1, 100, 100]);
       }
     }
-    translate([-biggestw/2, -50, 0])
-      cube([biggestw, 100, 100]);
+    difference(){
+      translate([-biggestw/2, -50, 0])
+       cube([biggestw, 100, 100]);
+      for (mir=[0,1]) {
+       mirror([mir,0,0])
+         translate([spoolwidth/2 + Washer_thick() + spoolinnerslop +
+                    AxlePin_holerad()*0.5,
+                    0, -50])
+         cylinder(r=AxlePin_holerad(), 100, $fn=15);
+      }
+    }
+    translate([0,0,barz]) {
+      translate([-100,0,0])
+       rotate([0,90,0]) cylinder(r=barrad, h=200, $fn=30);
+    }
   }
 }
 
-module Trestle(){
+module FtAxlePin(){ ////toplevel
+  AxlePin(barrad, (barrad + barwasherrad*2)/3 * 2);
+}
+
+module AxleWasher(){ ////toplevel
+  Washer(barrad, barwasherrad);
+}
+
+module Trestle(){ ////toplevel
   legang = atan2(trestlebase/2, trestleheight);
   eplen = sqrt(trestleheight*trestleheight + trestlebase*trestlebase*0.25);
   topblockw = plugwmax + trestleplugd*2 + topblockthick*2;
@@ -113,7 +136,7 @@ module Trestle(){
     for (rot=[0,180]) {
       translate([0,0,plugl/2]) rotate([0,rot,0]) translate([0,0,-plugl/2]) {
        translate([-(topblockw*0.25+1),
-                  plugh + pindh - (pinmaxh - pinminh)*0.5,
+                  plugh + pindh - (pinmaxh - pinminh)*0.75,
                   (plugl - pinholebasew*2)/3]) {
          translate([0,0,pinholebasew/2]) rotate([-90,0,0]) %Pin();
          rotate([0,90,0]) {
@@ -129,7 +152,7 @@ module Trestle(){
   }
 }
 
-module Pin(){
+module Pin(){ ////toplevel
   rotate([90,0,90]) {
     hull(){
       for (mir=[0,1]) {
@@ -151,7 +174,7 @@ module Pin(){
   }
 }
 
-module TestKit(){
+module TestKit(){ ////toplevel
   translate([30,0,0]) Pin();
   translate([30,30,0]) Pin();
   translate([0,40,0]) intersection(){
@@ -164,11 +187,11 @@ module TestKit(){
   }
 }
 
-//Bar();
+Bar();
+//FtAxlePin();
+//AxleWasher();
 //Trestle();
 //Pin();
-
-TestKit();
-
+//TestKit();
 //Plug(d=1);
 //ExtenderPillars(80,12,8, baseweb=true);