filamenttrestle wip now triangular pins

[reprap-play.git] / filamenttrestle.scad

diff --git a/filamenttrestle.scad b/filamenttrestle.scad
index 1ef23fe477fca319dc8992b9672dadac100ebe00..4532c79867aef2be1c27adc1a9e4bebf67089e2e 100644 (file)
--- a/filamenttrestle.scad
+++ b/filamenttrestle.scad
@@ -25,9 +25,11 @@ trestleplugd = 1;
 topcylthick = 3;
 topcylbasedepth = 4;
 
-pindr = 0.5;
-pinholeminr = 1.0 + pindr;
-pinholemaxr = 1.5 + pindr;
+pinbasew = 3;
+pinminh = 1.0;
+pinmaxh = 3;
+pindh = 1.0;
+pindwidth = 1.0;
 
 module Plug(d=0){
   a = -atan(plugslope);
@@ -70,6 +72,9 @@ module Trestle(){
   eplen = sqrt(trestleheight*trestleheight + trestlebase*trestlebase*0.25);
   topcylw = plugwmax + topcylthick*2;
 
+  pinholebasew = pinbasew + pindwidth;
+  pinholeh =     pinminh +  pindh;
+
   difference(){
     union(){
       for (mir=[0,1]) {
@@ -98,12 +103,15 @@ module Trestle(){
 
     for (rot=[0,180]) {
       translate([0,0,plugl/2]) rotate([0,rot,0]) translate([0,0,-plugl/2]) {
-       translate([-(topcylw/2+1), plugh, plugl/4])
-         rotate([0,90,0])
-         cylinder(r1=pinholeminr, r2=pinholeminr, h=topcylw/2+2, $fn=20);
-       translate([0, plugh, plugl/4])
-         rotate([0,90,0])
-         cylinder(r1=pinholeminr, r2=pinholemaxr, h=topcylw/2+1, $fn=20);
+       translate([-(topcylw*0.25+1),
+                  plugh,
+                  (plugl - pinholebasew*2)/3]) rotate([0,90,0]) {
+         linear_extrude(height = topcylw*1.0+2) {
+           polygon([[-1.0 * pinholebasew, -0.01],
+                    [-0.5 * pinholebasew, pinholeh],
+                    [ 0                 , -0.01]]);
+         }
+       }
       }
     }
   }