filamenttrestle adjustments after 1

[reprap-play.git] / filamenttrestle.scad

diff --git a/filamenttrestle.scad b/filamenttrestle.scad
index 0f99442f9b21eee95b568422da46d747c4d93dbd..924135230e684cd1c6b69d23ee08cdcbf987a488 100644 (file)
--- a/filamenttrestle.scad
+++ b/filamenttrestle.scad
@@ -13,7 +13,7 @@ guidewidth = 3;
 guiderad = 20;
 
 legw = 12;
-plugl = 16;
+plugl = 20;
 plugwmin = 3;
 plugh = 10;
 plugslope = 0.5;
@@ -24,30 +24,35 @@ trestlebaseh = 10;
 trestleplugd = 1;
 
 topblockthick = 4;
-topblockbasedepth = 4;
+topblockbasedepth = 5;
 
-pinbasew = 3;
+pinbasew = 5.0;
 pinminh = 1.5;
-pinmaxh = 4.0;
-pindh = 1.0;
-pindwidth = 1.0;
+pinmaxh = 4.5;
+pindh = 0.50;
+pindwidth = 0.75;
+
+pintaperlen = plugwmax * 0.85;
+pinstraightlen = 10;
 
 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(){
+module Bar(){ ////toplevel
   spoolw = spoolwidth + spoolwidthgap*2;
   barz = barradz * 0.5;
   biggestw = spoolw + 50;
@@ -70,13 +75,13 @@ module Bar(){
   }
 }
 
-module Trestle(){
+module Trestle(){ ////toplevel
   legang = atan2(trestlebase/2, trestleheight);
   eplen = sqrt(trestleheight*trestleheight + trestlebase*trestlebase*0.25);
   topblockw = plugwmax + trestleplugd*2 + topblockthick*2;
 
   pinholebasew = pinbasew + pindwidth*2;
-  pinholeh =     pinminh +  pindh;
+  pinholeh =     pinmaxh +  pindh;
 
   difference(){
     union(){
@@ -93,7 +98,10 @@ module Trestle(){
        }
       }
       translate([-topblockw/2, -topblockbasedepth, 0])
-       cube([topblockw, topblockbasedepth + plugh + topblockthick, plugl]);
+       cube([topblockw,
+             topblockbasedepth + plugh + topblockthick
+             + (pinmaxh - pinminh)*0.6 + pindh,
+             plugl]);
 
       translate([-trestlebase/2, -trestleheight, 0])
        ExtenderPillars(length=trestlebase, width=trestlebaseh*2, height=legw);
@@ -107,12 +115,15 @@ 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)/2,
-                  (plugl - pinholebasew*2)/3]) rotate([0,90,0]) {
-         linear_extrude(height = topblockw*1.0+2) {
-           polygon([[-1.0 * pinholebasew, -0.01],
-                    [-0.5 * pinholebasew, pinholeh],
-                    [ 0                 , -0.01]]);
+                  plugh + pindh - (pinmaxh - pinminh)*0.75,
+                  (plugl - pinholebasew*2)/3]) {
+         translate([0,0,pinholebasew/2]) rotate([-90,0,0]) %Pin();
+         rotate([0,90,0]) {
+           linear_extrude(height = topblockw*1.0+2) {
+             polygon([[-1.0 * pinholebasew, -0.01],
+                      [-0.5 * pinholebasew, pinholeh],
+                      [ 0                 , -0.01]]);
+           }
          }
        }
       }
@@ -120,8 +131,44 @@ module Trestle(){
   }
 }
 
-//Bar();
-Trestle();
+module Pin(){ ////toplevel
+  rotate([90,0,90]) {
+    hull(){
+      for (mir=[0,1]) {
+       mirror([mir,0,0]) {
+         linear_extrude(height=0.1) {
+           polygon([[-0.01, 0],
+                    [-0.01, pinminh],
+                    [pinbasew*0.5*(pinminh/pinmaxh), 0]]);
+         }
+         translate([0,0,pintaperlen])
+           linear_extrude(height=pinstraightlen) {
+           polygon([[-0.01, 0],
+                    [-0.01, pinmaxh],
+                    [pinbasew*0.5, 0]]);
+         }
+       }
+      }
+    }
+  }
+}
+
+module TestKit(){ ////toplevel
+  translate([30,0,0]) Pin();
+  translate([30,30,0]) Pin();
+  translate([0,40,0]) intersection(){
+    Trestle();
+    translate([-50,-10,-1]) cube([100,100,100]);
+  }
+  intersection(){
+    translate([-60,0,0]) Bar();
+    cube(50,center=true);
+  }
+}
 
+//Bar();
+//Trestle();
+//Pin();
+//TestKit();
 //Plug(d=1);
 //ExtenderPillars(80,12,8, baseweb=true);