// PRUSA iteration3
// Z axis bottom holder
// GNU GPL v3
// Josef Průša <iam@josefprusa.cz> and contributors
// http://www.reprap.org/wiki/Prusa_Mendel
// http://prusamendel.org

module z_bottom_base(){
 translate([0,0,0]) cube([8,40,16+25]); // plate touching the base
 translate([0,-5,0]) cube([30,5.01,22]); // plate touching the base
 translate([0,-5,0]) cube([50,15,5]); // plate touching the base
 translate([0,-5,0]) cube([18,50,5]);
}

module z_bottom_fancy(){
 // corner cutouts
 translate([0.5,-2.5,0]) rotate([0,0,-45-180]) translate([-15,0,-1]) cube([30,30,51]);
 translate([0.5,40-0.5,0]) rotate([0,0,-45+90]) translate([-15,0,-1]) cube([30,30,51]);
 //translate([-4,40+5,5]) rotate([0,0,-35-0]) translate([0,0,0.1]) cube([30,30,51]);
 translate([-4+11,40+5+5,0]) rotate([0,0,-45-0]) translate([0,0,-1]) cube([30,30,51]);
 translate([8,0,12+20+6]) rotate([0,-90,0]) translate([0,-5,0]) cube([30,50,30]);
 translate([20,-2,12+8]) rotate([45,0,0]) rotate([0,-90,0]) translate([0,-5,0]) cube([30,50,30]);
 translate([8,20,12+30]) rotate([-45,0,0]) rotate([0,-90,0]) translate([0,-5,0]) cube([30,50,30]);
 translate([50-2.5,-5+2.5,0]) rotate([0,0,-45-90]) translate([-15,0,-1]) cube([30,30,51]);
 translate([50-1.5,10-1.5,0]) rotate([0,0,-45]) translate([-15,0,-1]) cube([30,30,51]);
 //translate([0,0,5]) rotate([45+180,0,0]) rotate([0,0,-45+90]) translate([0,0,-15]) cube([30,30,30]);
 // Stiffner cut out
 translate([30,0,5.5]) rotate([0,-45,0]) translate([0,-5,0]) cube([30,50,30]);
}

module z_bottom_holes(){
 // Frame mounting screw holes
 translate([-1,10,10+5]) rotate([0,90,0]) cylinder(h = 20, r=1.8, $fn=30);
 translate([-1,10+20,10+5]) rotate([0,90,0]) cylinder(h = 20, r=1.8, $fn=30);
 translate([-1,10+10,10+20+5]) rotate([0,90,0]) cylinder(h = 20, r=1.8, $fn=30);

 // Frame mounting screw head holes
 translate([4,10,10+5]) rotate([0,90,0]) cylinder(h = 20, r=3.1, $fn=30);
 translate([4,10+20,10+5]) rotate([0,90,0]) cylinder(h = 20, r=3.1, $fn=30);
 translate([4,10+10,10+20+5]) rotate([0,90,0]) cylinder(h = 20, r=3.1, $fn=30);
 translate([4,10+10-3.1,10+20+5]) cube([10,6.2,10]);

 // Z rod holder
 translate([25+4.3,4.2,-1]) rotate([0,0,0]) cylinder(h = 50, r=4.1, $fn=15);
 translate([25+4.3-1,3,0.6]) cube([2,10,7]); // it's bit up because it helps with printing

 // motor mounting
 translate([25+4.3,21,-1]){
 //translate([15.5,15.5,-1]) cylinder(h = 20, r=1.8, $fn=30);
 
 translate([15.5,-15.5,-1]) cylinder(h = 20, r=1.8, $fn=30);
 translate([-15.5,15.5,-1]) cylinder(h = 20, r=1.8, $fn=30);
 translate([-15.5,-15.5,-1]) cylinder(h = 20, r=1.8, $fn=30);
 }

}

// Final part
module z_bottom_holder(){
 difference(){
  z_bottom_base();
  z_bottom_fancy();
  z_bottom_holes();
 }
 translate([0,-13,0]) mirror([0,1,0]) difference(){
  z_bottom_base();
  z_bottom_fancy();
  z_bottom_holes();
 }
}

z_bottom_holder();