bw=12.8;
bl=140;

gw=3;
gs=gw+6;
gn=3*(bl/(gw+gs));

module grid() {
   union() {
      for ( i = [0 : gs : gn * gs]) {
         translate([0, i, 0])
            rotate([0,0,45])
               cube([bw*3,gw,20]);
      }
      for ( i = [0 : gs : gn * gs]) {
         translate([0, i, 0])
            rotate([0,0,-45])
               cube([bw*3,gw,20]);
      }
   }
}

// A remix of the bar with a grid through it to try and get it to print
// without curling (it still curled some).
//
module bar() {
   difference() {
      rotate([0,0,45])
         import("PCBviseBar.stl");
      difference() {
         translate([-(bw-6)/2,-(bl-6)/2,-20/2])
            cube([bw-6,bl-6,20]);
         intersection() {
            translate([-(bw-6)/2,-(bl-6)/2,-20/2])
               cube([bw-6,bl-6,20]);
            translate([-13.5,-90,-10])
               grid();
         }
      }
   }
}

tubeid=15.82-0.05;
tubelen=50;
sloth=2;

// A cylinder designed to slide into a piece of electrical conduit and
// and grip the mount point on the bar so the conduit forms an arm to hold
// the clamp. (Note: Conduit seems awful variable in size, best measure
// the piece you are planning to actually use before printing - mine measured
// 15.82mm inside diameter).
//
module conduit() {
   rotate([0,90,0])
      difference() {
         union() {
            rotate([0,90,0])
               cylinder(h=tubelen,r=(tubeid/2), $fn=24);
            intersection() {
               rotate([0,90,0])
                  cylinder(h=tubelen/2,r1=((tubeid+0.4)/2),r2=(tubeid/2),$fn=24);
               translate([-1,-tubeid/2, -(tubeid+10)/2])
                  cube([2+tubelen/2,tubeid,tubeid+10]);
            }
         }
         translate([0,0,-(5.71/2)])
            scale([1.01,1.01,1.01])
               rotate([0,0,45])
                  import("PCBviseBar.stl");
         translate([0,-(tubeid+2)/2,-(sloth/2)])
            cube([tubelen*2/3,tubeid+2,sloth]);
      }
}

conduit();