flyscreen-handle: entirely new retain (apropos v5)

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

diff --git a/flyscreen-handle.scad b/flyscreen-handle.scad
index bfdec5e04d1f2f6095e162e7d686053c9307cb21..84edd65f62aaaf2bdf99439327de12b99ecd2654 100644 (file)
--- a/flyscreen-handle.scad
+++ b/flyscreen-handle.scad
@@ -1,52 +1,72 @@
 // -*- C -*-
 
-opening_height = 7.84 - 0.3;
-opening_depth = 7.88;
+opening_height = 7.84 - 0.3 + 0.60;
+opening_depth = 6.0; // 7.88;
 openingcnr_dia = 2.75;
 opening_topprotr = 1.54;
 
 gap = 0.25;
 
-retain_empir_angle = 20;
-retain_empir_stalkw = 0.8;
 retain_rad = 1.65;
-retain_empir_inward = 0.65;
+retain_protr = 0.35;
+retain_hgap_adjust = 1.5;
+
+retain_stalk_len = 8.0;
+retain_stalk_h = 1.5;
+retain_bend_gap = 2.0;
+retain_empir_angle = -25;
+
+hgap_empir_adjust = -0.5 -2.50;
 
 topprotr_rad = 0.35;
 
 bot_overlap = 5;
 bot_w = 3;
 
-handle_d = 2;
 handle_w = 8;
-handle_rh = 2;
+handle_rh = 3;
 handle_rcut = 3;
 
 cutout_gap = 1.5;
 
+total_len = 35;
+retaining_len = 10;
+overret_gaplen = 5;
+
+overret_hch = 5;
+
 // calculated
 
 ins_irad = openingcnr_dia/2 + gap;
 ins_orad = openingcnr_dia/2 + opening_height - gap;
 ins_th = ins_orad - ins_irad;
 
-handle_x0 = ins_irad;
+handle_x0 = ins_irad + hgap_empir_adjust;
 handle_h = bot_overlap + ins_th;
 handle_y0 = -ins_orad-bot_overlap;
 handle_y1 = handle_y0 + handle_h;
 
 handle_x1 = handle_x0 + bot_w + handle_w;
 
+topprotr_y = -ins_irad + opening_topprotr;
+
+retain_mxy = [handle_x0 - retain_rad - retain_hgap_adjust,
+             -ins_orad + retain_rad - retain_protr];
+
 module InsertSection(){
   hull(){
-    translate([-ins_orad, 0]) square([ins_th, 0.1]);
+    translate([-ins_irad, -ins_irad])
+      mirror([1,0])
+      square([opening_depth - ins_irad, 0.1]);
     translate([-ins_irad - topprotr_rad,
-              opening_topprotr - topprotr_rad])
+              topprotr_y - topprotr_rad])
       circle(r=topprotr_rad, $fn=10);
   }
   translate([0, -ins_orad]) square([ins_irad+1, ins_th]);
   intersection(){
-    translate([0.1,0.1]) mirror([1,1]) square([100,100]);
+    translate([0.1, -ins_irad + 0.1])
+      mirror([1,1])
+      square([100, opening_depth]);
     difference(){
       circle(r= ins_orad);
       circle(r= ins_irad, $fn=20);
@@ -82,20 +102,21 @@ module HandleSection(){
 }
 
 module RetainSection(){
-  rotate(180-retain_empir_angle)
-    translate([0, ins_orad - retain_empir_inward])
-    circle(r=retain_rad, $fn=20);
+  translate(retain_mxy) {
+    rotate(retain_empir_angle) {
+      circle(r=retain_rad, $fn=20);
+      square([retain_stalk_len + 1, retain_stalk_h]);
+    }
+  }
 }
 
 module RetainCutout(gapping=false){
-  rotate(180-retain_empir_angle)
-    translate([0, ins_orad - retain_empir_inward]) {
-    difference(){
-      circle(r=retain_rad + cutout_gap, $fn=20);
-      if (!gapping)
-       rotate(180 + retain_empir_angle/2)
-         translate([0, -retain_empir_stalkw])
-         square([100, retain_empir_stalkw*2]);
+  translate(retain_mxy) {
+    rotate(retain_empir_angle) {
+      translate([-50, -retain_rad]) {
+       square([50 + retain_stalk_len,
+               retain_rad * 2 + retain_bend_gap]);
+      }
     }
   }
 }  
@@ -110,10 +131,12 @@ module GappingSection(){
 
 module WithRetainSection(){
   difference(){
-    InsertSection();
+    union(){
+      InsertSection();
+      HandleSection();
+    }
     RetainCutout();
   }
-  HandleSection();
   RetainSection();
 }
 
@@ -122,21 +145,44 @@ module BasicSection(){
   HandleSection();
 }
 
-module Demo(){
-  difference(){
-    InsertSection();
-    RetainCutout();
+module Handle(){
+  bs0 = retaining_len + overret_gaplen;
+  bs1 = bs0 + overret_hch;
+  linear_extrude(height=total_len, convexity=100) GappingSection();
+  linear_extrude(height=retaining_len, convexity=100) WithRetainSection();
+  translate([0,0, bs1]) linear_extrude(height= total_len - bs1)
+    BasicSection();
+  translate([0,0, bs1+0.1]) mirror([0,0,1]) {
+    intersection_for (sl=[0,1]) {
+      multmatrix([[1,0,0,0],
+                 [0,1,sl*0.65,0],
+                 [0,0,1,0],
+                 [0,0,0,1]])
+       linear_extrude(height= overret_gaplen+1, convexity=100)
+       BasicSection();
+    }
   }
-  HandleSection();
-  color("red") RetainSection();
+}
+
+module Demo(){
+  color("red") translate([0,0,-3]) BasicSection();
+  color("blue") translate([0,0,3]) WithRetainSection();
 }
 
 module Test(){
-  linear_extrude(height=2) WithRetainSection();
+  linear_extrude(height=2) {
+    WithRetainSection();
+    translate([0, -handle_y0 + topprotr_y + 10])
+      BasicSection();
+  }
 }
 
 //Demo();
-WithRetainSection();
+//HandleSection();
+//InsertSection();
+//WithRetainSection();
 //BasicSection();
 //GappingSection();
 //Test();
+Demo();
+//Handle();