X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=flyscreen-handle.scad;h=5f1f643f6d0abf3b405c6da2c4bcc1756c34eeb8;hp=d2b1fd17e5b77f3b6392127072dea082da0e0b81;hb=4baf337cb792899ca5e68af95418f1ddd0ad1506;hpb=f73a9b4fbb73132ca73c4722590440ecd2deb1c3

diff --git a/flyscreen-handle.scad b/flyscreen-handle.scad
index d2b1fd1..5f1f643 100644
--- a/flyscreen-handle.scad
+++ b/flyscreen-handle.scad
@@ -2,8 +2,8 @@
 
 opening_height = 7.84;
 opening_depth = 7.88;
-openingedge_dia = 1.34;
-opening_protrh = 1.8;
+openingedge_dia = 2.00;
+opening_protrh = 2.00;
 
 pivot_x = 6;
 inside_len = 4;
@@ -11,14 +11,19 @@ inside_len = 4;
 pivoting_gap = 0.1;
 
 outside_gap = 3;
-outside_len = 16;
+outside_len = 13;
 outend_height = 3;
 
+outside_len_bot = 23;
+
 outside_pushh = 4;
 outside_pushslope = 1.4;
+outside_push_inadj = 0.82;
 
 ourcirc_r = 0.5 / 2;
 
+ribble_dia = 2.2;;
+
 opening_protr_slop = 0.1;
 
 intooth_top_slop = 0.1;
@@ -27,6 +32,16 @@ inside_h_xgap = 1;
 pivot_r = 2;
 pivot_slop = 0.25;
 
+strap_above = 0.1;
+strap_th = 2.5;
+strap_below = 3;
+strap_width = 5;
+
+width = 35;
+nstraps = 2;
+
+test_width = 5;
+
 // calculated
 
 inside_h = opening_height/2 - opening_protrh - inside_h_xgap/2;
@@ -40,17 +55,36 @@ p4p5d = [edge_or + ourcirc_r, 0];
 
 P0 = [ pivot_x, pivoting_gap ];
 P4 = Q0 - p4p5d;
-P3 = [ P4[0], Q0[1] - openingedge_dia/2 + opening_protrh
-       - intooth_top_slop - ourcirc_r ];
+P3t = [ P4[0], Q0[1] - openingedge_dia/2 + opening_protrh
+	- intooth_top_slop - ourcirc_r ];
 P2 = P4 + [ -(inside_len - ourcirc_r*2), 0 ];
-P1 = [ P2[0], P3[1] - (inside_h + ourcirc_r*2) ];
-P9 = [ outside_len - ourcirc_r, outside_gap/2 + ourcirc_r ];
-P8 = P9 + [ 0, outend_height - ourcirc_r*2 ];
+P1 = [ P2[0], P3t[1] - (inside_h + ourcirc_r*2) ];
+
 P5 = Q0 + p4p5d;
-P6 = P5 + [ 0, outside_pushh - ourcirc_r*2 ];
-P7 = [ P6[0] + (P6[1] - P1[1]) / outside_pushslope,
+
+P8t = [ outside_len - ourcirc_r, P5[1] ];
+P9t = P8t + [ 0, -(strap_above + strap_th + strap_below - ourcirc_r*2) ];
+
+P9b = [ P9t[0], -P9t[1] + outside_gap ];
+P8b = P9b + [ 0, outend_height ];
+
+P89eadj = [ outside_len_bot - outside_len, 0 ];
+P8eb = P8b + P89eadj;
+P9eb = P9b + P89eadj;
+
+P6t = P5 + [ 0, outside_pushh - ourcirc_r*2 ];
+P7 = [ P6t[0] + (P6t[1] - P1[1]) / outside_pushslope,
        P1[1] ];
 
+P3a = P3t + [ -outside_push_inadj, 0 ];
+P6a = P6t + [ -outside_push_inadj, 0 ];
+
+outside_push_inadj_slope = (P3t[1]-P4[1]) / (P6a[1]-P5[1]);
+
+ribble_rad = ribble_dia/2;
+
+kit_adj_shift = -opening_height - 2.0;
+
 module ExtrusionSect(){
   cr = openingedge_dia/2;
   toph = opening_height/2 + opening_protrh;
@@ -83,30 +117,77 @@ module PsHull(ps) {
   }
 }
 
-module LeverSect(){
-  PsHull([P2,P3,P4]);
+module LeverSect(top, inadj=false){
+  P3 = inadj ? P3a : P3t;
+  P6 = inadj ? P6a : P6t;
+  P8 = top ? P8t : P8b;
+  P9 = top ? P9t : P9b;
   difference(){
-    PsHull([P0,P1,P2,P5,P8,P9]);
-    translate(Q0) {
-      hull(){
-	circle(r=edge_or, $fn=20);
-	translate([0,10]) circle(r=edge_or, $fn=20);
+    union(){
+      PsHull([P2,P3,P4]);
+      PsHull([P0,P1,P2,P5,P8,P9]);
+    }
+    hull(){
+      for (dp = [ [0,0],
+		  (P6-P5),
+		  (P3-P4)
+		  ]) {
+	translate(Q0 + 5*dp) circle(r=edge_or, $fn=20);
+      }
+    }
+  }
+}
+
+module StrapSectTop(){
+  translate(P9t + ourcirc_r * [+1,-1]) {
+    difference(){
+      circle(r = strap_below + strap_th, $fn=40);
+      circle(r = strap_below,            $fn=40);
+    }
+  }
+}
+
+module StrapSectBot(){
+  mirror([0,1]){
+    for (dx = [ -(strap_below + strap_th),
+		0 ]) {
+      translate(P9b + [ ourcirc_r + dx, -10 ]) {
+	square([strap_th, 20]);
       }
     }
   }
 }
 
+module Ribbles(xmax, xmin, y){
+  for (x = [ xmax + ourcirc_r - ribble_rad :
+	     -ribble_rad * 4 :
+	     xmin ]) {
+    translate([x, y])
+      circle(r = ribble_rad, $fn=20);
+  }
+}
+
 module LeverSectTop(){
   difference(){
-    LeverSect();
+    union(){
+      LeverSect(true, false);
+      Ribbles(P8t[0],
+	      Q0[0] + edge_or + ribble_rad*2,
+	      P5[1] + ourcirc_r);
+    }
     translate([pivot_x,0]) circle(r= pivot_r + pivot_slop, $fn=20);
   }
 }
 
-module LeverSectBot(){
+module LeverSectBot(inadj=false){
+  P6 = inadj ? P6a : P6t;
   mirror([0,1]) {
-    LeverSect();
+    LeverSect(false, inadj);
     PsHull([P5,P6,P7]);
+    PsHull([P8b,P8eb,P9eb,P9b]);
+    Ribbles(P8eb[0],
+	    P9b[0],
+	    P8eb[1]);
     translate([pivot_x,0]) circle(r=pivot_r, $fn=20);
   }
 }
@@ -114,7 +195,64 @@ module LeverSectBot(){
 module Demo(){
   translate([0,0,-5]) color("white") ExtrusionSect();
   LeverSectTop();
-  LeverSectBot();
+  translate([0,0,5]) LeverSectBot();
+  color("black") LeverSectBot(true);
+  color("blue") translate([0,0,10]) StrapSectTop();
+  color("purple") translate([0,0,-10]) StrapSectBot();
+}
+
+module SomeLever() {
+  // SomeLever(){ LeverBot(inadj); LeverSectBot(); }
+  difference(){
+    linear_extrude(height=width, convexity=100) children(0);
+    for (i = [ 0 : nstraps - 1 ]) {
+      translate([0,0, (i + 0.5) / nstraps * width - strap_width/2])
+	linear_extrude(height=strap_width, convexity=10)
+	children(1);
+    }
+  }
+}
+
+module Test(){
+  linear_extrude(height=test_width, convexity=100) {
+    translate([0,2,0]) LeverSectTop();
+    LeverSectBot();
+    translate([0,kit_adj_shift]) LeverSectBot(true);
+  }
+}
+
+module LeverTop(){ ////toplevel
+  SomeLever(){
+    LeverSectTop();
+    StrapSectTop();
+  }
+}
+module LeverBot(){ ////toplevel
+  SomeLever(){
+    LeverSectBot();
+    StrapSectBot();
+  }
+}
+module LeverBotAdj(){ ////toplevel
+  SomeLever(){
+    LeverSectBot(true);
+    StrapSectBot(true);
+  }
+}
+
+module Kit(){ ////toplevel
+  translate([0,2,0]) LeverTop();
+  LeverBot();
+}
+
+module KitAdj(){ ////toplevel
+  translate([0,2,0]) LeverTop();
+  LeverBotAdj();
 }
 
-Demo();
+//LeverSectBot(true);
+//Demo();
+//LeverTop();
+//Test();
+//Kit();
+//KitAdj();