scad/x-end-motor.scad

   1 // PRUSA iteration3
   2 // X end motor
   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 // Alterations for reprap Wilson by Martin Rice <mrice411@gmail.com>
   8
   9 use <x-end.scad>
  10
  11 offs_adjuster_y = 5.5;
  12 adj_block_x = 12;
  13 adj_block_y = 10;
  14 adj_block_z = 32;
  15 motor_offs_z = 0;
  16
  17 module adjustomatic() {
  18
  19    difference() {
  20        translate(v=[-(15+17/2+adj_block_x/2),offs_adjuster_y,58-adj_block_z/2])
  21           cube(size=[adj_block_x,adj_block_y,adj_block_z],center=true);
  22
  23        translate(v=[-(15+17/2+adj_block_x/2)-5,offs_adjuster_y,58-adj_block_z/2-8])
  24          rotate([0,-30,0]) cube(size=[adj_block_x,adj_block_y+2,adj_block_z],center=true);
  25
  26        translate(v=[-(15+17/2+adj_block_x/2-1),offs_adjuster_y,58-adj_block_z/2-3])
  27           cube(size=[adj_block_x,adj_block_y-2,adj_block_z-2],center=true);
  28
  29        translate(v=[-(15+17/2+adj_block_x/2),offs_adjuster_y,58-adj_block_z/2+14])
  30            {
  31          rotate([0,0,30]) #cylinder(h = 4, r = 7.5/2 , $fn = 6);
  32          translate([0,0,-20]) #cylinder(h=30,r=2,$fn=16);
  33 }
  34
  35    }
  36
  37 }
  38
  39 // the endstop mount will be translated by this much (negative values
  40 // mean it moves away from the motor and toward the X carriage, giving
  41 // more room for leads and also extra space for the auto bedleveling
  42 // servo housing which is on this side of the extruder):
  43 endstop_sw_offs_adjust = -2;
  44
  45 module pocket_endstop() // endstop holder grafted onto the side toward the rods
  46 {
  47   translate([-7,-45,0])
  48     union() {
  49       // angled wall that attaches to the endstop holder
  50       translate([-1,18,0]) rotate([0,0,-30]) cube(size=[8.5,2,22]);
  51       // little bit of extra support at the bottom corner
  52       translate([-1.5,15.,2]) rotate([0,90,0]) cube(size=[2,3,10]);
  53
  54       difference() {
  55        translate([-1.5,endstop_sw_offs_adjust,0]) cube(size=[9,20.5,22]);
  56
  57        translate([-2,endstop_sw_offs_adjust,1]) cube(size=[7,21,22]);
  58        #translate([0,15.5,8]) cube(size=[10,5,20]);
  59
  60        // screw holes for endstop switch
  61        translate([-2,7+endstop_sw_offs_adjust,1.5+5.5]) rotate([0,90,0]) cylinder(r=1.5,h=15);
  62        translate([-2,7+endstop_sw_offs_adjust,1.5+5.5+9.5]) rotate([0,90,0]) cylinder(r=1.5,h=15);
  63       }
  64     }
  65 }
  66
  67 module x_end_motor_sr() {
  68     difference() {
  69        cube(size=[8,12,10]);
  70        #translate([4,11.5,9]) rotate([0,90,0])
  71                difference() { cylinder(r=4.5,h=4,$fn=16,center=true);
  72                               translate([0,0,-1]) cylinder(r=2.5,h=7,$fn=16,center=true);
  73                }
  74
  75         #translate([9,10.6,10]) rotate([0,45,90]) cube(size=[2,11,2]);
  76     }
  77 }
  78
  79 module x_end_motor_base(){
  80  x_end_base();
  81  // motor arm
  82  translate(v=[-15,31,26.5+motor_offs_z]) cube(size = [17,44,53], center = true);
  83  // z stop adjuster
  84  adjustomatic();
  85  // x endstop holder
  86  pocket_endstop();
  87 }
  88
  89 screw_head_r = 3.5;
  90
  91 module x_end_motor_holes(){
  92  x_end_holes();
  93  // Position to place
  94  translate(v=[-1,32,30.25+motor_offs_z]){
  95   // Belt hole
  96   translate(v=[-14,1,0]) cube(size = [10,46,22], center = true);
  97   // Motor mounting holes
  98   translate(v=[20,-15.5,-15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 70, r=1.8, $fn=30);
  99   translate(v=[1,-15.5,-15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 12, r=screw_head_r, $fn=30);
 100
 101
 102   translate(v=[20,-15.5,15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 70, r=1.8, $fn=30);
 103   translate(v=[1,-15.5,15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 12, r=screw_head_r, $fn=30);
 104
 105
 106   translate(v=[20,15.5,-15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 70, r=1.8, $fn=30);
 107   translate(v=[1,15.5,-15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 12, r=screw_head_r, $fn=30);
 108
 109
 110   translate(v=[20,15.5,15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 70, r=1.8, $fn=30);
 111   translate(v=[1,15.5,15.5]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 12, r=screw_head_r, $fn=30);
 112
 113   // Material saving cutout
 114   translate(v=[-10,12,10]) cube(size = [60,42,42], center = true);
 115
 116   // Material saving cutout
 117   translate(v=[-10,40,-30]) rotate(a=[45,0,0])  cube(size = [60,42,42], center = true);
 118   // Motor shaft cutout
 119   translate(v=[0,0,0]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 70, r=17, $fn=6);
 120
 121   // zip tie retainer for securing end stop wiring
 122   #translate([-5,-59,14]) difference() { cylinder(r=4.5,h=4,$fn=16);
 123                                           translate([0,0,-1]) cylinder(r=2.5,h=7,$fn=16);
 124                                         }
 125   #translate([-5,-46,28]) rotate([90,0,0]) difference() { cylinder(r=4.5,h=4,$fn=16,center=true);
 126        translate([0,0,-1]) cylinder(r=2.5,h=7,$fn=16,center=true);
 127   }
 128  }
 129 }
 130
 131 // Final part
 132 module x_end_motor(){
 133  difference(){
 134   x_end_motor_base();
 135   x_end_motor_holes();
 136  }
 137  // strain relief (zip tie point) below the motor
 138  translate([-23.5,9,53]) x_end_motor_sr();
 139 }
 140
 141 rotate([0,0,180])
 142 x_end_motor();