chiark / gitweb /
filamenttrestle thicker block
[reprap-play.git] / filamenttrestle.scad
index 1193e4a219f67c9a078516681a3f67fc4b3c0834..9d9e41f6a54000a16213061ee07c1b10a9804850 100644 (file)
@@ -22,8 +22,8 @@ trestlelegw = 10;
 trestlebaseh = 10;
 trestleplugd = 1;
 
-topcylthick = 3;
-topcylbasedepth = 4;
+topblockthick = 4;
+topblockbasedepth = 4;
 
 pinbasew = 3;
 pinminh = 1.0;
@@ -32,10 +32,12 @@ pindh = 1.0;
 pindwidth = 1.0;
 
 module Plug(d=0){
+  dw = d;
+  dh = d;
   a = atan(plugslope);
-  tdx = d * cos(a);
-  tdy = d * sin(a);
-  bdx = d / cos(a);
+  bdx = dw / cos(a);
+  tdy = dh;
+  tdx = bdx + dh * plugslope;
   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],
@@ -70,7 +72,7 @@ module Bar(){
 module Trestle(){
   legang = atan2(trestlebase/2, trestleheight);
   eplen = sqrt(trestleheight*trestleheight + trestlebase*trestlebase*0.25);
-  topcylw = plugwmax + topcylthick*2;
+  topblockw = plugwmax + trestleplugd*2 + topblockthick*2;
 
   pinholebasew = pinbasew + pindwidth;
   pinholeh =     pinminh +  pindh;
@@ -89,8 +91,8 @@ module Trestle(){
            cylinder(r=trestlelegw/2*1.2, h=plugl);
        }
       }
-      translate([-topcylw/2, -topcylbasedepth, 0])
-       cube([topcylw, topcylbasedepth + plugh + topcylthick, plugl]);
+      translate([-topblockw/2, -topblockbasedepth, 0])
+       cube([topblockw, topblockbasedepth + plugh + topblockthick, plugl]);
 
       translate([-trestlebase/2, -trestleheight, 0])
        ExtenderPillars(length=trestlebase, width=trestlebaseh*2, height=plugl);
@@ -103,10 +105,10 @@ module Trestle(){
 
     for (rot=[0,180]) {
       translate([0,0,plugl/2]) rotate([0,rot,0]) translate([0,0,-plugl/2]) {
-       translate([-(topcylw*0.25+1),
-                  plugh,
+       translate([-(topblockw*0.25+1),
+                  plugh + pindh - (pinmaxh - pinminh)/2,
                   (plugl - pinholebasew*2)/3]) rotate([0,90,0]) {
-         linear_extrude(height = topcylw*1.0+2) {
+         linear_extrude(height = topblockw*1.0+2) {
            polygon([[-1.0 * pinholebasew, -0.01],
                     [-0.5 * pinholebasew, pinholeh],
                     [ 0                 , -0.01]]);