From dcc54a896784314a4376338b2331b33a86584684 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 27 Aug 2016 16:19:37 +0100
Subject: [PATCH] flyscreen-handle: Make top side flat

---
 flyscreen-handle.scad | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/flyscreen-handle.scad b/flyscreen-handle.scad
index c7f057f..bdecb61 100644
--- a/flyscreen-handle.scad
+++ b/flyscreen-handle.scad
@@ -47,10 +47,14 @@ 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;
 
+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] ];
@@ -92,8 +96,10 @@ 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(){
@@ -111,7 +117,7 @@ module LeverSect(inadj=false){
 
 module LeverSectTop(){
   difference(){
-    LeverSect(false);
+    LeverSect(+1, false);
     translate([pivot_x,0]) circle(r= pivot_r + pivot_slop, $fn=20);
   }
 }
@@ -119,7 +125,7 @@ module LeverSectTop(){
 module LeverSectBot(inadj=false){
   P6 = inadj ? P6a : P6t;
   mirror([0,1]) {
-    LeverSect(inadj);
+    LeverSect(-1, inadj);
     PsHull([P5,P6,P7]);
     translate([pivot_x,0]) circle(r=pivot_r, $fn=20);
   }
-- 
2.30.2