scad/y-end-motor.scad

   1 //
   2 // Parametric single-piece y ends for Reprap Wilson
   3 // GNU GPL v3
   4 // by Martin Rice <mrice411@gmail.com>
   5 //
   6 include <configuration.scad>
   7
   8 washer_recess     = 2; // recesses the washer into the outer side of the end.
   9 motor_face_x_offs = 78; // distance from corner to the face of the stepper motor
  10 fan_hole          = 1;
  11 strengthen_around_fan = 1; // adds block behind fan for extra stiffness
  12 brace_h            = 41;
  13 want_endstop_mount = 1;    // set to zero if you don't want it!
  14 fan_depth = 10; // if this is greater than 10mm, be sure to add strengthen from above.
  15 end_w = 193.5;
  16 tie_wrap_extra = 1;
  17
  18 //endpost();
  19 yend_motor();
  20
  21 module yend_motor()
  22 {
  23   difference() {
  24     union() {
  25        // thin base under the end (optional)
  26        bigbase();
  27        // first corner
  28        endpost();
  29        // second corner
  30        translate([end_w,0,0]) scale([-1,1,1]) endpost();
  31        // motor and fan mount
  32        translate([motor_face_x_offs,0,0]) translate([-60,42.52,-3]) rotate([0,0,-89.4]) import("i3rsubmotor_fixed.stl");
  33
  34        // connecting braces
  35        translate([88+53,-3,0]) cube([29.5,19,brace_h]);
  36        translate([88,0,0]) brace();
  37        translate([23,0,0]) smallbrace();
  38
  39        if(strengthen_around_fan)    {
  40           translate([25+9.2,-5-(fan_depth-10),0]) cube([54,6+(fan_depth-10),brace_h]);
  41        }
  42
  43        if(want_endstop_mount) {
  44            translate([157,3,brace_h-1]) {
  45                   cube([4,13,20]);
  46                   translate([0,10,0]) rotate([0,0,90]) cube([3,5,20]);
  47            }
  48
  49        }
  50
  51      }
  52
  53      // bevels on outer corners
  54      translate([-1,-23/2,-1])    rotate([0,0,45]) cube([10,10,90]);
  55      translate([end_w+1,-23/2,-1]) rotate([0,0,45]) cube([10,10,90]);
  56      translate([43,21,-1]) cube([32,30,10]);
  57
  58      // fancy big cutout
  59      translate([88+23+(fan_depth-10)/5,-45.4-(fan_depth-10)/3,-1]) cylinder(r=52,h=brace_h+10,$fn=100);
  60
  61      // fan cutout for bigger fans
  62      #translate([25+13,4+10-fan_depth,1]) cube([40,fan_depth+.5,40]);
  63
  64      // fan vent cutout
  65      if(fan_hole) translate([23+23.7+11.2,5,20]) rotate([90,0,0]) cylinder(r=19,h=40,$fn=6);
  66
  67      if(want_endstop_mount) {
  68             #translate([160,3,brace_h]) {
  69                 translate([1.1,0,1]) cube([6,15,20]); // endstop for visualization
  70                 translate([-5,6.5,5]) #rotate([0,90,0]) rotate([0,0,30]) cylinder(r=1.8,h=10); // mount hole
  71                 translate([-5,6.5,15]) #rotate([0,90,0])  rotate([0,0,30]) cylinder(r=1.8,h=10); // mount hole
  72              }
  73
  74      }
  75   }
  76 }
  77
  78
  79 module endpost()
  80 {
  81      difference() {
  82        union() {
  83          difference() {
  84            cube([23,16,height_of_post]);
  85            #translate([23/2,7,height_of_post]) rotate([-90,0,0]) cylinder(r=smooth_rod_d/2+2+tie_wrap_t+tie_wrap_extra,h=tie_wrap_w);
  86          }
  87
  88          difference() {
  89          translate([23/2,7,height_of_post]) rotate([-90,0,0]) cylinder(r=smooth_rod_d/2+2+tie_wrap_extra,h=tie_wrap_w);
  90          translate([0,0,height_of_post]) cube([23,16,10]);
  91          }
  92        }
  93
  94        translate([23/2,-10,height_of_threaded ]) rotate([-90,0,0]) cylinder(r=threaded_rod_d/2+.4,h=380);
  95        translate([23/2,-.1,height_of_threaded ]) rotate([-90,0,0]) cylinder(r=washer_d/2+.4,h=washer_recess);
  96        translate([23/2,2.5,height_of_smooth]) rotate([-90,0,0]) cylinder(r=smooth_rod_d/2+.1,h=380);
  97      }
  98
  99 }
 100
 101 module bigbase()
 102 {
 103        intersection() {
 104        cube([193.5,55,2]);
 105        translate([end_w/2,-85,-1]) cylinder(r=140,h=9,$fn=50);
 106        }
 107 }
 108
 109 module brace()
 110 {
 111
 112    difference() {
 113       translate([0,-3,0]) cube([53,19,brace_h]);
 114       //translate([25,-45.4,-1]) cylinder(r=52,h=brace_h+2,$fn=100);
 115       translate([25,61.5,-1]) cylinder(r=52,h=brace_h+2,$fn=100);
 116    }
 117
 118 }
 119
 120 module smallbrace()
 121 {
 122       smallbrace_h = brace_h;
 123
 124      cube([11.2,16,smallbrace_h]);
 125 }
 126
 127
 128