flyscreen-handle: Ribbles

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

diff --git a/flyscreen-handle.scad b/flyscreen-handle.scad
index d7b8f572aa49a272b388fccd94ad9795fc7fb2c5..1d4b9799251e0681886c07b77389fc9eea52b698 100644 (file)
--- a/flyscreen-handle.scad
+++ b/flyscreen-handle.scad
@@ -20,6 +20,8 @@ outside_push_inadj = 0.82;
 
 ourcirc_r = 0.5 / 2;
 
+ribble_dia = 2.2;;
+
 opening_protr_slop = 0.1;
 
 intooth_top_slop = 0.1;
@@ -47,20 +49,24 @@ 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], 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;
 
-P6t = P5 + [ 0, outside_pushh - ourcirc_r*2 ];
-P7t = [ P6t[0] + (P6t[1] - P1[1]) / outside_pushslope,
-       P1[1] ];
+P9mid = [ outside_len - ourcirc_r, outside_gap/2 + ourcirc_r ];
+P8mid = P9mid + [ 0, outend_height - ourcirc_r*2 ];
 
-outside_push_inadj_slope = (P3t[1]-P4[1]) / (P6a[1]-P5[1]);
+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 ];
-P7a = [ P6a[0] + (P6a[1] - P1[1]) / outside_pushslope,
-       P1[1] ];
+
+outside_push_inadj_slope = (P3t[1]-P4[1]) / (P6a[1]-P5[1]);
+
+ribble_rad = ribble_dia/2;
 
 module ExtrusionSect(){
   cr = openingedge_dia/2;
@@ -94,8 +100,10 @@ module PsHull(ps) {
   }
 }
 
-module LeverSect(inadj=false){
+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(){
@@ -113,16 +121,23 @@ module LeverSect(inadj=false){
 
 module LeverSectTop(){
   difference(){
-    LeverSect(false);
+    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(inadj=false){
   P6 = inadj ? P6a : P6t;
-  P7 = inadj ? P7a : P7t;
   mirror([0,1]) {
-    LeverSect(inadj);
+    LeverSect(-1, inadj);
     PsHull([P5,P6,P7]);
     translate([pivot_x,0]) circle(r=pivot_r, $fn=20);
   }