X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=flyscreen-handle.scad;h=d2b1fd17e5b77f3b6392127072dea082da0e0b81;hp=1a8d15ab8576e91740721882189cfebc8307935d;hb=f73a9b4fbb73132ca73c4722590440ecd2deb1c3;hpb=1d758ca89a6f6b8729b5eabf1636f050c2781ad3

diff --git a/flyscreen-handle.scad b/flyscreen-handle.scad
index 1a8d15a..d2b1fd1 100644
--- a/flyscreen-handle.scad
+++ b/flyscreen-handle.scad
@@ -8,11 +8,14 @@ opening_protrh = 1.8;
 pivot_x = 6;
 inside_len = 4;
 
-pivoting_gap = 1;
+pivoting_gap = 0.1;
 
 outside_gap = 3;
-outside_len = 10;
-outend_height = 4;
+outside_len = 16;
+outend_height = 3;
+
+outside_pushh = 4;
+outside_pushslope = 1.4;
 
 ourcirc_r = 0.5 / 2;
 
@@ -21,21 +24,32 @@ opening_protr_slop = 0.1;
 intooth_top_slop = 0.1;
 inside_h_xgap = 1;
 
+pivot_r = 2;
+pivot_slop = 0.25;
+
 // calculated
 
 inside_h = opening_height/2 - opening_protrh - inside_h_xgap/2;
 
+edge_or = openingedge_dia/2 + opening_protr_slop;
+
 Q0 = [ openingedge_dia/2,
        openingedge_dia/2 + opening_height/2 ];
 
+p4p5d = [edge_or + ourcirc_r, 0];
+
 P0 = [ pivot_x, pivoting_gap ];
-P4 = Q0 + [ -(openingedge_dia/2 + opening_protr_slop + ourcirc_r), 0 ];
+P4 = Q0 - p4p5d;
 P3 = [ 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 ];
+P5 = Q0 + p4p5d;
+P6 = P5 + [ 0, outside_pushh - ourcirc_r*2 ];
+P7 = [ P6[0] + (P6[1] - P1[1]) / outside_pushslope,
+       P1[1] ];
 
 module ExtrusionSect(){
   cr = openingedge_dia/2;
@@ -60,8 +74,47 @@ module ExtrusionSect(){
   }
 }
 
+module PsHull(ps) {
+  hull(){
+    for (p = ps) {
+      translate(p)
+	circle(r = ourcirc_r, $fn=10);
+    }
+  }
+}
+
 module LeverSect(){
-  
+  PsHull([P2,P3,P4]);
+  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);
+      }
+    }
+  }
+}
+
+module LeverSectTop(){
+  difference(){
+    LeverSect();
+    translate([pivot_x,0]) circle(r= pivot_r + pivot_slop, $fn=20);
+  }
+}
+
+module LeverSectBot(){
+  mirror([0,1]) {
+    LeverSect();
+    PsHull([P5,P6,P7]);
+    translate([pivot_x,0]) circle(r=pivot_r, $fn=20);
+  }
+}
+
+module Demo(){
+  translate([0,0,-5]) color("white") ExtrusionSect();
+  LeverSectTop();
+  LeverSectBot();
 }
 
-ExtrusionSect();
+Demo();