$fn=120;
Delta=0.001;
Opening_Angle=90;
Height=15;
Thickness=2.5;

module Clamp(Diameter, Borehole=true) {
  Tx=Diameter/2+Thickness;
  translate([Tx,0,0]) difference() {
    union() {
      scale([1,1.05,1]) cylinder(d=Diameter+2*Thickness, h=Height);
      if (Borehole) translate([-(5+Diameter/2),-Diameter/2,0]) cube([10,Diameter,Height]);
    }
    translate([0,0,Delta]) union() {
      translate([1,0,0]) cylinder(d=Diameter, h=2*Height, center=true);
      if (Borehole) {
        translate([0,0,Height/2]) rotate([0,90,0]) cylinder(d=4.5, h=60, center=true);
        translate([-(1+Diameter/2),-Diameter/4,2]) #cube([8,10,Height]);
      }
      translate([0,0,-1]) for(j=[-Opening_Angle/2:360/$fn:+Opening_Angle/2]) rotate([0,0,j]) hull() {
        rotate([0,0,+360/$fn/2]) cube([60,0.001,20]);
        rotate([0,0,-360/$fn/2]) cube([60,0.001,20]);
      }
    }
  }
}

// translate([-Thickness/3,0,0]) Clamp(Diameter=25, Borehole=false);
// rotate([0,0,180]) translate([-Thickness/3,0,0]) Clamp(Diameter=18.85, Borehole=false);
// translate([0,0,Height/2]) cube([2*Thickness,12,Height], center=true);


translate([4,0,0]) Clamp(Diameter=25, Borehole=false);
rotate([0,0,180]) translate([4,0,0]) Clamp(Diameter=18.85, Borehole=false);
translate([0,0,Height/2]) cube([12,12,Height], center=true);