X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=reprap-play.git;a=blobdiff_plain;f=flyscreen-handle.scad;h=c7f057f92bd222558b966f49e95157daeff3b291;hp=d2b1fd17e5b77f3b6392127072dea082da0e0b81;hb=6fd7e47aa3f3709503b8cda8c8e767d3309b5ac8;hpb=f73a9b4fbb73132ca73c4722590440ecd2deb1c3

diff --git a/flyscreen-handle.scad b/flyscreen-handle.scad
index d2b1fd1..c7f057f 100644
--- a/flyscreen-handle.scad
+++ b/flyscreen-handle.scad
@@ -16,6 +16,7 @@ outend_height = 3;
 
 outside_pushh = 4;
 outside_pushslope = 1.4;
+outside_push_inadj = 0.82;
 
 ourcirc_r = 0.5 / 2;
 
@@ -27,6 +28,8 @@ inside_h_xgap = 1;
 pivot_r = 2;
 pivot_slop = 0.25;
 
+width = 5;
+
 // calculated
 
 inside_h = opening_height/2 - opening_protrh - inside_h_xgap/2;
@@ -40,17 +43,23 @@ 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) ];
+P1 = [ P2[0], P3t[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,
+
+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]);
+
 module ExtrusionSect(){
   cr = openingedge_dia/2;
   toph = opening_height/2 + opening_protrh;
@@ -83,14 +92,18 @@ module PsHull(ps) {
   }
 }
 
-module LeverSect(){
+module LeverSect(inadj=false){
+  P3 = inadj ? P3a : P3t;
+  diag = inadj ? 0 : atan(outside_push_inadj_slope);
   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);
+      rotate(diag){
+	hull(){
+	  circle(r=edge_or, $fn=20);
+	  translate([0,10]) circle(r=edge_or, $fn=20);
+	}
       }
     }
   }
@@ -98,14 +111,15 @@ module LeverSect(){
 
 module LeverSectTop(){
   difference(){
-    LeverSect();
+    LeverSect(false);
     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(inadj);
     PsHull([P5,P6,P7]);
     translate([pivot_x,0]) circle(r=pivot_r, $fn=20);
   }
@@ -117,4 +131,19 @@ module Demo(){
   LeverSectBot();
 }
 
-Demo();
+module LeverTop(){
+  linear_extrude(height=width, convexity=100) LeverSectTop();
+}
+
+module LeverBot(inadj=false){
+  linear_extrude(height=width, convexity=100) LeverSectBot(inadj);
+}
+
+module Test(){
+  translate([0,2,0]) LeverTop();
+  LeverBot();
+  translate([0,-opening_height - 2,0]) LeverBot(true);
+}
+
+//Demo();
+Test();