box_frame/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 include <configuration.scad>
  10 use <x-end.scad>
  11
  12 offs_adjuster_y = 5.5; // fixme: if we keep this, needs to adjust
  13                        // based on size of bushing_z to clear the side
  14                        // of the plate
  15 adj_block_x = 9;
  16 adj_block_y = 10;
  17 adj_block_z = 32;
  18 motor_offs_z = 0;
  19
  20 motor_y_offset = 7;
  21
  22 module adjustomatic() {
  23      difference() {
  24           translate(v=[x_base_back() - adj_block_x/2,offs_adjuster_y,x_box_height - adj_block_z/2]) cube(size=[adj_block_x,adj_block_y,adj_block_z],center=true);
  25
  26           // these were translated -0.5 from block in wilson
  27           translate ([0, 0, -0.5]) {
  28                translate(v=[x_base_back() -adj_block_x/2 - 5,offs_adjuster_y,x_box_height-adj_block_z/2-8])
  29                     rotate([0,-30,0]) cube(size=[adj_block_x,adj_block_y+2,adj_block_z],center=true);
  30
  31                translate(v=[x_base_back() -adj_block_x/2 -1,offs_adjuster_y,x_box_height-adj_block_z/2-3])
  32                     cube(size=[adj_block_x,adj_block_y-2,adj_block_z-2],center=true);
  33
  34                translate(v=[x_base_back() -adj_block_x/2,offs_adjuster_y,x_box_height-adj_block_z/2+14]) {
  35                     rotate([0,0,30]) #cylinder(h = 4, r = 7.0/2 , $fn = 6);
  36                     translate([0,0,-20]) #cylinder(h=30,r=1.6,$fn=16);
  37                }
  38           }
  39      }
  40 }
  41
  42 // the endstop mount will be translated by this much (negative values
  43 // mean it moves away from the motor and toward the X carriage, giving
  44 // more room for leads and also extra space for the auto bedleveling
  45 // servo housing which is on this side of the extruder):
  46 endstop_sw_offs_adjust = -0;
  47
  48 module pocket_endstop() // endstop holder grafted onto the side toward the rods
  49 {
  50   translate([-7,-45,0])
  51     union() {
  52       // angled wall that attaches to the endstop holder
  53       translate([-1,18,0]) rotate([0,0,-30]) cube(size=[8.5,2,22]);
  54       // little bit of extra support at the bottom corner
  55       translate([-1.5,15.,2]) rotate([0,90,0]) cube(size=[2,3,10]);
  56
  57       difference() {
  58        translate([-1.5,endstop_sw_offs_adjust,0]) cube(size=[9,20.5,22]);
  59
  60        translate([-2,endstop_sw_offs_adjust,1]) cube(size=[7,21,22]);
  61        translate([0,15.5,8]) cube(size=[10,5,20]);
  62
  63        // screw holes for endstop switch
  64        translate([-2,7+endstop_sw_offs_adjust,1.5+5.5]) rotate([0,90,0]) cylinder(r=1.5,h=15);
  65        translate([-2,7+endstop_sw_offs_adjust,1.5+5.5+9.5]) rotate([0,90,0]) cylinder(r=1.5,h=15);
  66       }
  67     }
  68 }
  69
  70 module x_end_motor_sr() {
  71      sr_box_height = 12;
  72      translate([x_base_back(),9,x_box_height - sr_box_height]) {
  73           difference() {
  74                cube(size=[8,14+motor_y_offset,sr_box_height]);
  75                translate([4,13.5+motor_y_offset,sr_box_height-1]) rotate([0,90,0]) difference() {
  76                     cylinder(r=4.5,h=4,$fn=16,center=true);
  77                     translate([0,0,-1]) cylinder(r=2.5,h=7,$fn=16,center=true);
  78                }
  79                translate([9,12.6+motor_y_offset,sr_box_height]) rotate([0,45,90]) cube(size=[2,11,2]);
  80           }
  81      }
  82 }
  83
  84 module x_end_motor_base(){
  85  x_end_base();
  86  // motor arm
  87  translate(v=[-15,31,26.5+motor_offs_z]) cube(size = [17,44+motor_y_offset*2,53], center = true);
  88  // z stop adjuster
  89  adjustomatic();
  90  // x endstop holder
  91  pocket_endstop();
  92 }
  93
  94 screw_head_r = 3.5;
  95
  96 module x_end_motor_holes(){
  97  x_end_holes();
  98  // Position to place
  99  translate(v=[-1,32,30.25+motor_offs_z]){
 100   // Belt hole
 101   translate(v=[-14,1,0]) cube(size = [10,46,22], center = true);
 102   translate ([0, motor_y_offset, 0]) {
 103   // Motor mounting holes
 104   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);
 105   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);
 106
 107
 108   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);
 109   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);
 110
 111
 112   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);
 113   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);
 114
 115
 116   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);
 117   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);
 118
 119   // Material saving cutout
 120   translate(v=[-10,12,10]) cube(size = [60,42,42], center = true);
 121
 122   // Material saving cutout
 123   translate(v=[-10,40,-30]) rotate(a=[45,0,0])  cube(size = [60,42,42], center = true);
 124   // Motor shaft cutout
 125   translate(v=[0,0,0]) rotate(a=[0,-90,0]) rotate(a=[0,0,90]) cylinder(h = 70, r=17, $fn=6);
 126 }
 127   // zip tie retainer for securing end stop wiring
 128   #translate([-5,-63,14]) difference() { cylinder(r=4.5,h=4,$fn=16);
 129                                           translate([0,0,-1]) cylinder(r=2.5,h=7,$fn=16);
 130                                         }
 131   #translate([-5,-48,x_box_height-30.5]) rotate([90,0,0]) difference() { cylinder(r=4.5,h=4,$fn=16,center=true);
 132        translate([0,0,-1]) cylinder(r=2.5,h=7,$fn=16,center=true);
 133   }
 134  }
 135 }
 136
 137 // Final part
 138 module x_end_motor(){
 139  difference(){
 140   x_end_motor_base();
 141   x_end_motor_holes();
 142  }
 143  // strain relief (zip tie point) below the motor
 144  x_end_motor_sr();
 145 }
 146
 147 rotate([0,0,180])
 148 x_end_motor();