// -*- C -*-

eclip_inner_rad = 2.5;
eclip_gap_rad = 0.5;
eclip_prong_th = 3;
eclip_outer_strt = 0.5;
eclip_inner_xstrt = 0.5;

eclip_ult_angle = 44;
eclip_base_epsilon = 0.5;

// calculated

include <utils.scad>

eclip_inner_strt = eclip_outer_strt + eclip_inner_xstrt;

r0 = eclip_inner_rad;
r1 = r0 + eclip_inner_rad;
r2 = r1 + eclip_prong_th;
r2e = r1 + eclip_base_epsilon;

$fn=70;

module EclipLPlanCore(alpha){
  FArcSegment(0,0, r1,r2,
	      180-eclip_ult_angle, eclip_ult_angle-alpha +1);

  difference(){
    hull(){
      intersection(){
	circle(r2);
	rotate(-alpha) mirror([1,1]) square([r2e, 50]);
     }
      rotate(-alpha) mirror([1,1]) square([r2e, r2]);
    }
    circle(r1);
  }
}

EclipLPlanCore(10);