scad/x-end.scad

   1 // PRUSA iteration3
   2 // X end prototype
   3 // GNU GPL v3
   4 // Josef Průša <iam@josefprusa.cz> and contributors
   5 // http://www.reprap.org/wiki/Prusa_Mendel
   6 // http://prusamendel.org
   7
   8 use <bearing.scad>
   9
  10 rod_distance = 45;
  11 pushfit_d = 8.2;
  12
  13 module x_end_base(){
  14 // Main block
  15 height = 58;
  16 translate(v=[-15,-9,height/2]) cube(size = [17,39,height], center = true);
  17 // Bearing holder
  18  vertical_bearing_base();
  19 //Nut trap
  20  // Cube
  21  translate(v=[-2-2,-17,4]) cube(size = [8,16,8], center = true);
  22  // Hexagon
  23  translate(v=[0,-17,0]) rotate([0,0,30]) cylinder(h = 8, r=8, $fn = 6);
  24 }
  25
  26 module x_end_holes(){
  27  vertical_bearing_holes();
  28 // Belt hole
  29 translate(v=[-1,0,0]){
  30 // Stress relief
  31 translate(v=[-5.5-10+1.5,-10-1,30]) cube(size = [20,1,28], center = true);
  32 difference(){
  33         translate(v=[-5.5-10+1.5,-10,30]) cube(size = [10,46,28], center = true);
  34
  35
  36
  37         // Nice edges
  38         translate(v=[-5.5-10+1.5,-10,30+23]) rotate([0,45,0]) cube(size = [10,46,28], center = true);
  39         translate(v=[-5.5-10+1.5,-10,30+23]) rotate([0,-45,0]) cube(size = [10,46,28], center = true);
  40         translate(v=[-5.5-10+1.5,-10,30-23]) rotate([0,45,0]) cube(size = [10,46,28], center = true);
  41         translate(v=[-5.5-10+1.5,-10,30-23]) rotate([0,-45,0]) cube(size = [10,46,28], center = true);
  42
  43 }
  44 }
  45
  46
  47
  48 // Bottom pushfit rod
  49 translate(v=[-15,-41.5,6]) rotate(a=[-90,0,0]) pushfit_rod(pushfit_d,50);
  50 // Top pushfit rod
  51 translate(v=[-15,-41.5,rod_distance+6]) rotate(a=[-90,0,0]) pushfit_rod(pushfit_d,50);
  52 // Nut trap
  53  translate(v=[0,-17,-0.5]) cylinder(h = 4, r1=3.3, r2=2.8, $fn=25);
  54  translate(v=[0,-17,3]) rotate([0,0,30]) cylinder(h = 10, r=4.5, $fn = 6);
  55 }
  56
  57
  58 // Final prototype
  59 module x_end_plain(){
  60  difference(){
  61   x_end_base();
  62   x_end_holes();
  63  }
  64 }
  65
  66 x_end_plain();
  67
  68
  69 module pushfit_rod(diameter,length){
  70  cylinder(h = length, r=diameter/2, $fn=30);
  71  difference(){
  72         translate(v=[0,-diameter/2.85,length/2]) rotate([0,0,45]) cube(size = [diameter/2,diameter/2,length], center = true);
  73         translate(v=[0,-diameter/4-diameter/2-0.4,length/2]) rotate([0,0,0]) cube(size = [diameter,diameter/2,length], center = true);
  74  }
  75  //translate(v=[0,-diameter/2-2,length/2]) cube(size = [diameter,1,length], center = true);
  76 }
  77