flyscreen-handle: Ribbles

[reprap-play.git] / flyscreen-handle.scad

diff --git a/flyscreen-handle.scad b/flyscreen-handle.scad
index 72add71a5160c53c0193b2ab6ef1ef843269a876..1d4b9799251e0681886c07b77389fc9eea52b698 100644 (file)
--- a/flyscreen-handle.scad
+++ b/flyscreen-handle.scad
@@ -16,9 +16,12 @@ outend_height = 3;
 
 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;
@@ -27,7 +30,7 @@ inside_h_xgap = 1;
 pivot_r = 2;
 pivot_slop = 0.25;
 
-width = 10;
+width = 5;
 
 // calculated
 
@@ -42,17 +45,29 @@ 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,
+
+P9mid = [ outside_len - ourcirc_r, outside_gap/2 + ourcirc_r ];
+P8mid = P9mid + [ 0, outend_height - ourcirc_r*2 ];
+
+P89adj = [ 0, P5[1] - P8mid[1] ];
+
+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;
+
 module ExtrusionSect(){
   cr = openingedge_dia/2;
   toph = opening_height/2 + opening_protrh;
@@ -85,14 +100,20 @@ module PsHull(ps) {
   }
 }
 
-module LeverSect(){
+module LeverSect(P89adjsense, inadj=false){
+  P3 = inadj ? P3a : P3t;
+  P8 = P8mid + P89adjsense * P89adj;
+  P9 = P9mid + P89adjsense * P89adj;
+  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);
+       }
       }
     }
   }
@@ -100,14 +121,23 @@ module LeverSect(){
 
 module LeverSectTop(){
   difference(){
-    LeverSect();
+    union(){
+      LeverSect(+1, false);
+      for (x = [ P8mid[0] + ourcirc_r - ribble_rad :
+                -ribble_rad * 4 :
+                Q0[0] + edge_or + ribble_rad*2 ]) {
+       translate([x, P5[1] + ourcirc_r])
+         circle(r = ribble_rad, $fn=20);
+      }
+    }
     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(-1, inadj);
     PsHull([P5,P6,P7]);
     translate([pivot_x,0]) circle(r=pivot_r, $fn=20);
   }
@@ -123,13 +153,14 @@ module LeverTop(){
   linear_extrude(height=width, convexity=100) LeverSectTop();
 }
 
-module LeverBot(){
-  linear_extrude(height=width, convexity=100) LeverSectBot();
+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();