filamenttrestle wip square pin holes, before make triangular

[reprap-play.git] / filamenttrestle.scad

diff --git a/filamenttrestle.scad b/filamenttrestle.scad
index a3643bcc91efc240029b06d96972883aedd446f3..bb8c029402fb5b4ddcead73ae76233a66eb97a6e 100644 (file)
--- a/filamenttrestle.scad
+++ b/filamenttrestle.scad
@@ -1,27 +1,128 @@
 // -*- C -*-
 
-spoolwidth = 80;
+spoolwidth = 80; // fixme needs to be measured
+trestleheight = 80; // fixme needs to be checked
+trestlebase = 80; // fixme needs to be checked
 
+include <doveclip.scad>
+
+spoolwidthgap = 2;
 barrady = 5;
 barradz = 7;
 guidewidth = 3;
 guiderad = 20;
 
+plugl = 12;
+plugwmin = 3;
+plugh = 10;
+plugslope = 0.5;
+plugwmax = plugwmin + plugh * plugslope * 2;
+
+trestlelegw = 10;
+trestlebaseh = 10;
+trestleplugd = 1;
+
+topcylthick = 3;
+topcylbasedepth = 4;
+
+pinminh = 1.0;
+pinmaxh = 1.5;
+pinwidth = 3;
+pindh = 0.5;
+pindwidth = 1.5;
+
+module Plug(d=0){
+  a = -atan(plugslope);
+  tdx = d * cos(a);
+  tdy = d * sin(a);
+  bdx = d / cos(a);
+  translate([-d,0,0]) rotate([90,0,90]) linear_extrude(height=plugl+0.1+d*2){
+    polygon([[-(plugwmin/2 + bdx),  0],
+            [-(plugwmax/2 + tdx),  plugh + tdy],
+            [+(plugwmax/2 + tdx),  plugh + tdy],
+            [+(plugwmin/2 + bdx),  0]]);
+  }
+}
+
 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([-biggestw/2, -50, 0])
+      cube([biggestw, 100, 100]);
+  }
+}
+
+module Trestle(){
+  legang = atan2(trestlebase/2, trestleheight);
+  eplen = sqrt(trestleheight*trestleheight + trestlebase*trestlebase*0.25);
+  topcylw = plugwmax + topcylthick*2;
+
+  pinholewidth = pinwidth + pindwidth;
+  pinholeminh = pinminh + pindh;
+  pinholemaxh = pinmaxh + pindh;
+
+  difference(){
+    union(){
+      for (mir=[0,1]) {
+       mirror([mir,0,0]) {
+         rotate([0,0, -90-legang])
+           ExtenderPillars(length=eplen+trestlelegw,
+                           width=trestlelegw,
+                           height=plugl,
+                           baseweb=true);
+
+         translate([-trestlebase/2, -trestleheight, 0])
+           cylinder(r=trestlelegw/2*1.2, h=plugl);
+       }
+      }
+      translate([-topcylw/2, -topcylbasedepth, 0])
+       cube([topcylw, topcylbasedepth + plugh + topcylthick, plugl]);
+
+      translate([-trestlebase/2, -trestleheight, 0])
+       ExtenderPillars(length=trestlebase, width=trestlebaseh*2, height=plugl);
+    }
+    translate([-300, -trestleheight-50, -1])
+      cube([600, 50, plugl+2]);
+
+    rotate([-90,-90,0])
+      Plug(d=trestleplugd);
+
+    for (rot=[0,180]) {
+      translate([0,0,plugl/2]) rotate([0,rot,0]) translate([0,0,-plugl/2]) {
+       translate([0, plugh, (plugl - pinholewidth*2)/3])
+#      linear_extrude(height = pinholewidth){
+         for (mir=[0,1]) {
+           mirror([0,mir,0]) {
+             polygon([[-(topcylw/2+0.1), -0.1],
+                      [-(topcylw/2+0.1), pinholeminh],
+                      [0,                pinholeminh],
+                      [+(topcylw/2+0.1), pinholemaxh],
+                      [+(topcylw/2+0.1), -0.1]]);
+           }
+         }
+       }    
       }
     }
-    translate([-barlen, -50, 0])
-      cube([barlen*2, 100, 100]);
   }
 }
 
-Bar();
+//Bar();
+Trestle();
+
+//Plug(d=1);
+//ExtenderPillars(80,12,8, baseweb=true);