flyscreen-handle: Peg, wip, PegSectionSlice (not much functional change)

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

diff --git a/flyscreen-handle.scad b/flyscreen-handle.scad
index 47588a0732dfa22cd73a5c7292fddb5fb970312c..60622789b5753ccbca74fecaa1a263902acb66ff 100644 (file)
--- a/flyscreen-handle.scad
+++ b/flyscreen-handle.scad
@@ -14,14 +14,14 @@ retain_hgap_adjust = 1.5;
 retain_stalk_len = 8.0;
 retain_stalk_h = 1.5;
 retain_bend_gap = 2.0;
-retain_empir_angle = -25;
-retain_pushmore_adj = 0.45;
+retain_empir_angle = -10;
+retain_pushmore_adj = 0.0;
 
 hgap_empir_adjust = -0.5 -2.50;
 
 topprotr_rad = 0.35;
 
-bot_overlap = 5;
+bot_overlap = 4;
 bot_w = 3;
 
 handle_w = 10;
@@ -36,6 +36,12 @@ basics_len = 8;
 
 overret_hch = 5;
 
+peg_width_slop = 0.5;
+peg_inner_thick = 1.0;
+
+peg_wedge_less = 1.0;
+peg_wedge_more = 1.0;
+
 // calculated
 
 ins_irad = openingcnr_dia/2 + gap;
@@ -58,9 +64,18 @@ retain_cutout_h = retain_rad * 2 + retain_bend_gap;
 
 overret_gaplen = retain_cutout_h / cos(retain_empir_angle);
 
+peg_width = retain_stalk_len -
+  (handle_x0 - retain_mxy[0]) / cos(retain_empir_angle)
+  - peg_width_slop;
+
+peg_height = retain_cutout_h - (retain_rad + retain_stalk_h)
+  + retain_pushmore_adj;
+
 retain1_len = retain_len + retain_stalk_len;
 retain1_base = total_len - retain1_len;
 
+peg_len = retain_len;
+
 module InsertSection(){
   hull(){
     translate([-ins_irad, -ins_irad])
@@ -122,6 +137,25 @@ module RetainSection(){
   }
 }
 
+module PegSection(delta){
+  hull(){
+    translate([0, -delta/2])
+      square([0.1,
+             peg_height + delta]);
+    translate([peg_width - 0.1,
+              peg_height/2 - peg_inner_thick/2])
+      square([0.1, peg_inner_thick]);
+  }
+}
+
+module PegSectionForDemo(delta){
+  translate(retain_mxy)
+    rotate(retain_empir_angle)
+    translate([retain_stalk_len - peg_width - peg_width_slop/2,
+              retain_stalk_h - retain_pushmore_adj])
+    PegSection(delta);
+}
+
 module RetainCutout(gapping=false){
   translate(retain_mxy) {
     rotate(retain_empir_angle) {
@@ -159,6 +193,21 @@ module BasicSection(){
   HandleSection();
 }
 
+module PegSectionSlice(lambda) {
+  delta = peg_wedge_more * (1-lambda) + -peg_wedge_less * lambda;
+  z = peg_len * lambda;
+  translate([0,0, z])
+    linear_extrude(height=0.1)
+    PegSection(delta);
+}  
+
+module Peg(){
+  hull(){
+    PegSectionSlice(0);
+    PegSectionSlice(1);
+  }
+}
+
 module Handle(){
   bs1 = retain_len + overret_gaplen + 4;
 
@@ -202,6 +251,7 @@ module Handle(){
 module Demo(){
   color("red") translate([0,0,-3]) BasicSection();
   color("blue") translate([0,0,3]) WithRetainSection();
+  color("orange") translate([0,0,7]) PegSectionForDemo(0);
 }
 
 module Test(){
@@ -219,5 +269,6 @@ module Test(){
 //BasicSection();
 //GappingSection();
 //Test();
+Peg();
 //Demo();
-Handle();
+//Handle();