earring-stand: replace a -ppxl with eclip_wall_offset

[reprap-play.git] / earring-stand.scad

diff --git a/earring-stand.scad b/earring-stand.scad
index f4479a367b510ce08214b643d835142e6af8e1eb..5e0d91997c3e51343a1d8a83999e101237a92432 100644 (file)
--- a/earring-stand.scad
+++ b/earring-stand.scad
@@ -23,7 +23,6 @@ test_main_th = 1.5;
 test_eclips = 5;
 test_base_th = 2.5;
 test_len = eclip_each_len + eclip_each_every*(test_eclips-1);
-echo("test_len",test_len);
 
 num_eclips = 5;
 
@@ -47,6 +46,9 @@ eclip_wall_offset = -ppxl;
 
 eclip_ra_offset = r2 - 0.1;
 
+eclip_rhs_offset = ppxl + rgap + eclip_prong_th;
+// does not include main_th
+
 $fn=70;
 
 module EclipLPlanCore(alpha){
@@ -146,11 +148,14 @@ module TestPlanDemo(){
 beta = asin(front_setback / front_height);
 
 uf = [-sin(beta), cos(beta)];
-ur = [-uf[0], uf[1]];
+ur = [ -uf[1], uf[0]];
 
 pp = [0, 0];
 pq = pp + uf*front_height + ur*eclip_ra_offset;
-pr = [ pq[0] - eclip_base_offset + eclip_wall_offset, 0 ];
+pr = [ pq[0] - eclip_base_offset - eclip_wall_offset,
+       0 ];
+
+echo("uf ur P Q R", uf, ur, pp, pq, pr);
 
 module Sketch(){
   polygon([pq, pp, pr]);
@@ -161,7 +166,6 @@ thicks = [ 2, 2, 2 ];
 module Joins(alpha, objnum, objnum_f, objnum_m) {
   pitch = (front_width - eclip_each_len) / (num_eclips-1);
   
-  echo("Joins",objnum, objnum_f, objnum_m);
   thm = thicks[objnum_m];
   stride = (front_width - eclip_each_len) / (num_eclips-1);
 
@@ -192,18 +196,42 @@ module Joins(alpha, objnum, objnum_f, objnum_m) {
 function r3(pc) = [ pc[0], 0, pc[1] ];
 
 module ObjectJoins(objnum){
-  echo("Object",objnum);
   translate(r3(pp))                   Joins(beta, objnum, 0,1);
   translate(r3(pr)) mirror([1,0,0])   Joins(0,    objnum, 0,2);
-  translate(r3(pq)) rotate([0,90,0])  Joins(beta, objnum, 2,1);
+  translate(r3(pq)) rotate([0,90,0]) mirror([1,0,0]) Joins(-beta, objnum, 2,1);
 }
 
 module Base(){
-  ObjectJoins(0);
+  xmin = pr[0] - eclip_rhs_offset - thicks[2];
+  xmax = pp[0] + eclip_rhs_offset + thicks[1]
+    + eclip_prong_th * (1/cos(beta) - 1)
+    + eclip_base_offset * tan(beta);
+  intersection(){
+    ObjectJoins(0);
+    translate([xmin,
+              -1,
+              -50])
+      cube([xmax - xmin,
+           front_width + 2,
+           300]);
+  }
+  translate([xmin,
+            0,
+            -eclip_base_offset - thicks[0]])
+    cube([xmax - xmin,
+         front_width,
+         thicks[0]]);
 }
 
 module Front(){
   ObjectJoins(1);
+  rotate([0, 90-beta, 0])
+    translate([0, 0, ppxl])
+    rotate([0,0,90]) {
+    cube([front_width,
+         front_height - eclip_wall_offset + thicks[1],
+         thicks[1]]);
+  }
 }
 
 module Back(){