ksafe-base: introduce SomeBaseProfile (nfc)

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

diff --git a/earring-stand.scad b/earring-stand.scad
index 5ee5a612c6e7fa121684e370908e9e707cab1766..85c28a877107edf7984bf6fe4bfd7ff8abd7a011 100644 (file)
--- a/earring-stand.scad
+++ b/earring-stand.scad
@@ -5,6 +5,19 @@ include <commitid.scad>
 front_height = 80;
 front_width = 120;
 front_setback = 30;
+front_thick = 2.4;
+
+front_hex_stride = 12.5;
+front_hex_dia = 9.5;
+
+front_hex_y_fudge = -0.65;
+
+front_surround_lr =3;
+
+back_thick = 3;
+back_pillarw = 6;
+
+base_thick = 2.4;
 
 eclip_inner_rad = 2.5;
 eclip_gap_rad = 0.1;
@@ -23,7 +36,8 @@ 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;
 
 // calculated
 
@@ -45,6 +59,11 @@ eclip_wall_offset = -ppxl;
 
 eclip_ra_offset = r2 - 0.1;
 
+eclip_recept_height = r2;
+
+eclip_rhs_offset = ppxl + rgap + eclip_prong_th;
+// does not include main_th
+
 $fn=70;
 
 module EclipLPlanCore(alpha){
@@ -91,13 +110,13 @@ module EclipPPlan(main_th){
 
 module TestBase(){ ////toplevel
   translate([0,0, eclip_base_offset]){
-    for (i=[0 : 2: test_eclips-1]) {
+    for (i=[1 : 2: test_eclips-2]) {
       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]) {
+    for (j=[0 : 2: test_eclips-1]) {
       translate([0, j*eclip_each_every])
        rotate([90,0,0])
        linear_extrude(height=eclip_each_len)
@@ -144,53 +163,175 @@ 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]);
 }
 
-thicks = [ 2, 2, 2 ];
+thicks = [ base_thick, front_thick, back_thick ];
 
 module Joins(alpha, objnum, objnum_f, objnum_m) {
-  echo("Joins",objnum, objnum_f, objnum_m);
+  pitch = (front_width - eclip_each_len) / (num_eclips-1);
+  
   thm = thicks[objnum_m];
+  stride = (front_width - eclip_each_len) / (num_eclips-1);
+
   if (objnum==objnum_f) {
-    EclipLPlan(alpha);
-    EclipRPlan(alpha, thm);
+    for (i=[ 1 : 2 : num_eclips-1 ]) {
+      translate([0, i*stride + eclip_each_len, 0]) {
+       rotate([90,0,0])
+       linear_extrude(height=eclip_each_len)
+         EclipLPlan(alpha);
+      }
+    }
+    for (i=[ 0 : 2 : num_eclips-1 ]) {
+      translate([0, i*stride + eclip_each_len, 0]) {
+       rotate([90,0,0])
+       linear_extrude(height=eclip_each_len)
+         EclipRPlan(alpha, thm);
+      }
+    }
   }
   if (objnum==objnum_m)
-    rotate(alpha)
+    mirror([0,1,0])
+      rotate([90,0,0])
+      linear_extrude(height=front_width)
+      rotate(alpha)
       EclipPPlan(thm);
 }
 
+function r3(pc) = [ pc[0], 0, pc[1] ];
+
 module ObjectJoins(objnum){
-  echo("Object",objnum);
-  translate(pp)                   Joins(beta, objnum, 0,1);
-  translate(pr) mirror([1,0,0])   Joins(0,    objnum, 0,2);
-  translate(pq) rotate([0,0,-90]) Joins(beta, objnum, 2,1);
+  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]) 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]]){
+    difference(){
+      cube([xmax - xmin,
+           front_width,
+         thicks[0]]);
+      translate([xmax-xmin, front_width]/2)
+       rotate([0,0,270])
+       Commitid_Full16_M();
+    }
+  }
+}
+
+module FrontPattern(){
+  totalh = front_height - eclip_wall_offset + thicks[1];
+
+  ystride = front_hex_stride;
+  xstride = front_hex_stride * cos(30) * 2;
+
+  difference(){
+    square([front_width, totalh]);
+    translate([ front_surround_lr,
+               eclip_recept_height ])
+      square([ front_width - front_surround_lr*2,
+              totalh - eclip_recept_height*2
+              ]);
+  }
+    
+  difference(){
+    square([front_width, totalh]);
+    for (xi=[ -5 : 5 ]) {
+      translate([front_width/2 +
+                xi * xstride,
+                0]) {
+       for (yi=[ 0 : 10 ]) {
+         //echo(yi);
+         translate([0, yi * ystride +
+                    front_hex_dia*front_hex_y_fudge]) {
+           for (dv=[ [0,0],
+                     [-xstride/2, -ystride/2]
+                     ])
+             translate(dv)
+               circle(r= front_hex_dia/2, $fn=6);
+         }
+       }
+      }
+    }
+  }
 }
 
 module Front(){
   ObjectJoins(1);
+  rotate([0, 90-beta, 0])
+    translate([0, 0, ppxl])
+    rotate([0,0,90]) {
+    linear_extrude(height=thicks[1])
+      FrontPattern();
+  }
 }
 
 module Back(){
   ObjectJoins(2);
+
+  zmin = pr[1];
+  zmax = pq[1] + eclip_prong_th;
+  height = zmax - zmin;
+
+  translate([pr[0] + eclip_wall_offset - thicks[2],
+            0, 0])
+    rotate([0,90,0])
+    rotate([0,0,90]) {
+    difference(){
+      cube([front_width,
+           height,
+           thicks[2]]);
+      translate([back_pillarw,
+                eclip_recept_height,
+                -10])
+       cube([front_width - back_pillarw*2,
+             height - eclip_recept_height*2 - eclip_prong_th,
+             20]);
+    }
+  }
 }
 
-module Demo(){
+module BackPrint(){ ////toplevel
+  rotate([0,-90,0]) Back();
+}
+
+module FrontPrint(){ ////toplevel
+  rotate([0, 90+beta, 0]) Front();
+}
+
+module BasePrint(){ ////toplevel
   Base();
-  Front();
-  Back();
+}
+
+module Demo(){ ////toplevel
+  color("red") Base();
+  color("blue") Front();
+  color("black") Back();
 }
 
 //PlanDemo();
@@ -199,3 +340,6 @@ module Demo(){
 //TestRAProtr();
 //Sketch();
 //Demo();
+//BackPrint();
+//FrontPrint();
+//BasePrint();