X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=earring-stand.scad;h=28024a876f5ed3bba2b98947420128b2b6d30943;hb=11bbae0f64a33a21098dfd6c6f6001a53cbdd072;hp=ace6c7a17274e84fc4743278b10bdc758c66baa9;hpb=d26f6954c5d0205b1d6431caf1a3205aaab27bfb;p=reprap-play.git

diff --git a/earring-stand.scad b/earring-stand.scad
index ace6c7a..28024a8 100644
--- a/earring-stand.scad
+++ b/earring-stand.scad
@@ -1,5 +1,7 @@
 // -*- C -*-
 
+include <commitid.scad>
+
 eclip_inner_rad = 2.5;
 eclip_gap_rad = 0.5;
 eclip_prong_th = 3;
@@ -9,6 +11,15 @@ eclip_inner_xstrt = 0.5;
 eclip_ult_angle = 44;
 eclip_base_epsilon = 0.5;
 
+eclip_each_len = 6;
+eclip_each_every = 15;
+
+test_alpha = 10;
+test_main_th = 1.5;
+test_eclips = 5;
+test_base_th = 2.5;
+test_len = eclip_each_len + eclip_each_every*(test_eclips-1);
+
 // calculated
 
 include <utils.scad>
@@ -16,10 +27,19 @@ include <utils.scad>
 eclip_inner_strt = eclip_outer_strt + eclip_inner_xstrt;
 
 r0 = eclip_inner_rad;
-r1 = r0 + eclip_inner_rad;
+r1 = r0 + eclip_gap_rad;
 r2 = r1 + eclip_prong_th;
 r2e = r1 + eclip_base_epsilon;
 
+ppxl = -(r0 / sqrt(2)) + (eclip_inner_strt / sqrt(2));
+
+rgap = eclip_gap_rad;
+
+eclip_base_offset = r1;
+eclip_wall_offset = -ppxl;
+
+eclip_ra_offset = r2 - 0.1;
+
 $fn=70;
 
 module EclipLPlanCore(alpha){
@@ -38,4 +58,85 @@ module EclipLPlanCore(alpha){
   }
 }
 
-EclipLPlanCore(10);
+module EclipRPlan(alpha, main_th){
+  intersection(){
+    rotate(alpha)
+      translate([ppxl + main_th + rgap, -r2*2])
+      square([eclip_prong_th, r2*(2 + 1/sqrt(2))]);
+    translate([-r2, -r2e])
+      square([r2*3, eclip_base_epsilon + r2*4]);
+  }
+}
+
+module EclipLPlan(alpha){
+  rotate(alpha) EclipLPlanCore(alpha);
+}
+
+module EclipPPlan(main_th){
+  intersection(){
+    hull(){
+      circle(r0);
+      rotate(90-eclip_ult_angle) square([r0,r0]);
+    }
+    translate([-(r0+.1), -(r0+.1)])
+      square([(r0+.1) + main_th + ppxl, r2*2]);
+  }
+  translate([ppxl, 0]) square([main_th, r2]);
+}
+
+module TestBase(){ ////toplevel
+  translate([0,0, eclip_base_offset]){
+    for (i=[0 : 2: test_eclips-1]) {
+      translate([0, i*eclip_each_every])
+	rotate([90,0,0])
+	linear_extrude(height=eclip_each_len)
+	EclipLPlan(test_alpha);
+    }
+    for (j=[1 : 2: test_eclips-2]) {
+      translate([0, j*eclip_each_every])
+	rotate([90,0,0])
+	linear_extrude(height=eclip_each_len)
+	EclipRPlan(test_alpha, test_main_th);
+    }
+  }
+  translate([-r2, -eclip_each_len, -test_base_th]){
+    difference(){
+      cube([r2*2,
+	    test_len,
+	    test_base_th]);
+      mirror([0,0,1]) Commitid_BestCount_M([r2*2, test_len]);
+    }
+  }
+}
+
+module TestProtr(){ ////toplevel
+  difference(){
+    translate([0,0, test_main_th - eclip_wall_offset])
+      rotate([0,90,0])
+      linear_extrude(height=test_len)
+      EclipPPlan(test_main_th);
+    mirror([0,0,1]) Commitid_BestCount_M([test_len, r2]);
+  }
+}
+
+module TestRAProtr(){ ////toplevel
+  rotate([-90,0,0]) TestProtr();
+  mirror([1,0,0])
+    translate([-test_len,
+	       -r2,
+	       -(eclip_ra_offset + test_base_th)])
+    cube([test_len,
+	  r2*2,
+	  test_base_th]);
+}
+
+module TestPlanDemo(){
+  color("red") EclipLPlan(test_alpha);
+  color("blue") rotate(test_alpha) EclipPPlan(test_main_th);
+  color("green") EclipRPlan(test_alpha, test_main_th);
+}
+
+//PlanDemo();
+//TestBase();
+//TestProtr();
+//TestRAProtr();