include <commitid.scad>
+front_height = 80;
+front_width = 120;
+front_setback = 30;
+
eclip_inner_rad = 2.5;
-eclip_gap_rad = 0.5;
-eclip_prong_th = 3;
+eclip_gap_rad = 0.1;
+eclip_prong_th = 2.25;
eclip_outer_strt = 0.5;
eclip_inner_xstrt = 0.5;
eclip_base_epsilon = 0.5;
eclip_each_len = 6;
-eclip_each_every = 15;
+eclip_each_every = 29;
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);
+echo("test_len",test_len);
+
+num_eclips = 5;
// calculated
eclip_ra_offset = r2 - 0.1;
+eclip_rhs_offset = ppxl + rgap + eclip_prong_th;
+// does not include main_th
+
$fn=70;
module EclipLPlanCore(alpha){
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)
color("green") EclipRPlan(test_alpha, test_main_th);
}
+beta = asin(front_setback / front_height);
+
+uf = [-sin(beta), cos(beta)];
+ur = [-uf[0], uf[1]];
+
+pp = [0, 0];
+pq = pp + uf*front_height + ur*eclip_ra_offset;
+pr = [ pq[0] - eclip_base_offset + eclip_wall_offset, 0 ];
+
+module Sketch(){
+ polygon([pq, pp, pr]);
+}
+
+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);
+
+ if (objnum==objnum_f) {
+ 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)
+ 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(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);
+}
+
+module Base(){
+ 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);
+}
+
+module Back(){
+ ObjectJoins(2);
+}
+
+module Demo(){
+ color("red") Base();
+ color("blue") Front();
+ color("black") Back();
+}
+
//PlanDemo();
//TestBase();
//TestProtr();
//TestRAProtr();
+//Sketch();
+Demo();