X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=filamenttrestle.scad;h=4532c79867aef2be1c27adc1a9e4bebf67089e2e;hp=1ef23fe477fca319dc8992b9672dadac100ebe00;hb=41ada164bf149e5e19488caf25527800fd3fc78c;hpb=9d7f5e67ca35ab63a97340aa2af4d6ee33afa8e0

diff --git a/filamenttrestle.scad b/filamenttrestle.scad
index 1ef23fe..4532c79 100644
--- 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]]);
+	  }
+	}
       }
     }
   }