X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=flyscreen-handle.scad;h=84d94cfce6bfc57a4fbac656d15dab0cc3398e35;hb=b785c424b052fef3303d0b31a432c1fbaaa62606;hp=00136e725de4b08fffce74e750c22c97949c130a;hpb=094f52d0f010a3c9510ac06909c88587801303a9;p=reprap-play.git

diff --git a/flyscreen-handle.scad b/flyscreen-handle.scad
index 00136e7..84d94cf 100644
--- a/flyscreen-handle.scad
+++ b/flyscreen-handle.scad
@@ -1,188 +1,31 @@
 // -*- C -*-
 
-opening_height = 7.84 - 0.3 + 0.60;
-opening_depth = 6.0; // 7.88;
-openingcnr_dia = 2.75;
-opening_topprotr = 1.54;
-
-gap = 0.25;
-
-retain_rad = 1.65;
-retain_protr = 0.35;
-retain_hgap_adjust = 1.5;
-
-retain_stalk_len = 8.0;
-retain_stalk_h = 1.5;
-retain_bend_gap = 2.0;
-retain_empir_angle = -25;
-
-hgap_empir_adjust = -0.5 -2.50;
-
-topprotr_rad = 0.35;
-
-bot_overlap = 5;
-bot_w = 3;
-
-handle_w = 8;
-handle_rh = 3;
-handle_rcut = 3;
-
-cutout_gap = 1.5;
-
-total_len = 35;
-retaining_len = 10;
-overret_gaplen = 5;
-
-overret_hch = 5;
-
-// calculated
-
-ins_irad = openingcnr_dia/2 + gap;
-ins_orad = openingcnr_dia/2 + opening_height - gap;
-ins_th = ins_orad - ins_irad;
-
-handle_x0 = ins_irad + hgap_empir_adjust;
-handle_h = bot_overlap + ins_th;
-handle_y0 = -ins_orad-bot_overlap;
-handle_y1 = handle_y0 + handle_h;
-
-handle_x1 = handle_x0 + bot_w + handle_w;
-
-topprotr_y = -ins_irad + opening_topprotr;
-
-retain_mxy = [handle_x0 - retain_rad - retain_hgap_adjust,
-	      -ins_orad + retain_rad - retain_protr];
-
-module InsertSection(){
-  hull(){
-    translate([-ins_irad, -ins_irad])
-      mirror([1, 0])
-      square([opening_depth - ins_irad, 0.1]);
-    translate([-ins_irad - topprotr_rad,
-	       topprotr_y - topprotr_rad])
-      circle(r=topprotr_rad, $fn=10);
-  }
-  translate([0, -ins_orad]) square([ins_irad+1, ins_th]);
-  intersection(){
-    translate([0, -ins_irad])
-      mirror([1,1])
-      square([100, opening_depth]);
-    difference(){
-      circle(r= ins_orad);
-      circle(r= ins_irad, $fn=20);
-    }
-  }
-}
-
-module HandleSection(){
-  difference(){
-    hull(){
-      translate([handle_x0, handle_y0])
-	square([bot_w, handle_h]);
-      for (y= [handle_y1 - handle_rh/2,
-	       handle_y1 - ins_th + handle_rh/2]) {
-	translate([handle_x1 - handle_rh/2, y])
-	  circle(r= handle_rh/2, $fn=20);
+opening_height = 7.84;
+opening_depth = 7.88;
+openingcnr_dia = 1.34;
+opening_protrh = 1.8;
+
+module ExtrusionSect(){
+  cr = openingcnr_dia/2;
+  toph = opening_height/2 + opening_protrh;
+
+  for (my=[0,1]) {
+    mirror([0,my]) {
+      translate([cr/2, opening_height/2 + cr/2]) {
+	hull(){
+	  circle(r=cr, $fn=20);
+	  translate([-cr,10]) square([cr*2, 1]);
+	}
       }
     }
-    hull(){
-      for (x= [handle_x0 + bot_w + handle_rcut/2,
-	       handle_x1 - handle_rh/2 - handle_rcut/2]) {
-	translate([x, handle_y1])
-	  circle(r = handle_rcut/2, $fn=20);
-      }
-    }
-  }
-  hull(){
-    for (y= [handle_y1 -   handle_rh/2,
-	     handle_y1 - 3*handle_rh/2])
-      translate([handle_x1 - handle_rh/2, y])
-	circle(r = handle_rh/2, $fn=20);
   }
-}
-
-module RetainSection(){
-  translate(retain_mxy) {
-    rotate(retain_empir_angle) {
-      circle(r=retain_rad, $fn=20);
-      square([retain_stalk_len + 1, retain_stalk_h]);
-    }
-  }
-}
-
-module RetainCutout(gapping=false){
-  translate(retain_mxy) {
-    rotate(retain_empir_angle) {
-      translate([-50, -retain_rad]) {
-	square([50 + retain_stalk_len,
-		retain_rad * 2 + retain_bend_gap]);
-      }
-    }
-  }
-}  
-
-module GappingSection(){
-  difference(){
-    InsertSection();
-    RetainCutout(true);
-  }
-  HandleSection();
-}
-
-module WithRetainSection(){
-  difference(){
-    union(){
-      InsertSection();
-      HandleSection();
-    }
-    RetainCutout();
-  }
-  RetainSection();
-}
-
-module BasicSection(){
-  InsertSection();
-  HandleSection();
-}
-
-module Handle(){
-  bs0 = retaining_len + overret_gaplen;
-  bs1 = bs0 + overret_hch;
-  linear_extrude(height=total_len, convexity=100) GappingSection();
-  linear_extrude(height=retaining_len, convexity=100) WithRetainSection();
-  translate([0,0, bs1]) linear_extrude(height= total_len - bs1)
-    BasicSection();
-  translate([0,0, bs1+0.1]) mirror([0,0,1]) {
-    intersection_for (sl=[0,1]) {
-      multmatrix([[1,0,0,0],
-		  [0,1,sl*0.65,0],
-		  [0,0,1,0],
-		  [0,0,0,1]])
-	linear_extrude(height= overret_gaplen+1, convexity=100)
-	BasicSection();
+  translate([-opening_depth, -toph]) {
+    difference(){
+      translate([-5,-5])
+	square([opening_depth+6, toph*2+10]);
+      square([opening_depth+2, toph*2]);
     }
   }
 }
 
-module Demo(){
-  color("red") translate([0,0,-3]) BasicSection();
-  color("blue") translate([0,0,3]) WithRetainSection();
-}
-
-module Test(){
-  linear_extrude(height=2) {
-    WithRetainSection();
-    translate([0, -handle_y0 + topprotr_y + 10])
-      BasicSection();
-  }
-}
-
-//Demo();
-//HandleSection();
-//InsertSection();
-//WithRetainSection();
-//BasicSection();
-//GappingSection();
-Test();
-//Demo();
-//Handle();
+ExtrusionSect();