scad/y-end-idler.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 end.
   9 idler_offset_y    = 6;
  10 base_thickness    = 3;
  11
  12 yend_idler();
  13
  14 module yend_idler()
  15 {
  16   difference() {
  17     union() {
  18     // thin base under the end (optional)
  19     bigbase();
  20     brace();
  21
  22     // first corner
  23     endpost();
  24
  25     // second corner
  26     translate([193.5,0,0]) scale([-1,1,1]) endpost();
  27
  28     // idler mount
  29     translate([193.5/2+23.8/2,19.1 - idler_offset_y,0])
  30         rotate([0,0,180])
  31           translate([-72.5,-106.7,0])
  32              rotate([0,0,0.7]) import("i3rsubidler2_fixed.stl");
  33     }
  34
  35      translate([-1,-23/2,-1]) rotate([0,0,45]) cube([10,10,50]);
  36      translate([194.5,-23/2,-1]) rotate([0,0,45]) cube([10,10,50]);
  37
  38   }
  39 }
  40
  41 module endpost()
  42 {
  43      difference() {
  44        union() {
  45          difference() {
  46            cube([23,16,height_of_post]);
  47            translate([23/2,7,height_of_post]) rotate([-90,0,0]) cylinder(r=smooth_rod_d/2+2+tie_wrap_t,h=tie_wrap_w);
  48          }
  49
  50          difference() {
  51          translate([23/2,7,height_of_smooth]) rotate([-90,0,0]) cylinder(r=smooth_rod_d/2+2,h=tie_wrap_w);
  52          translate([0,0,height_of_post]) cube([23,16,10]);
  53          }
  54        }
  55
  56        #translate([23/2,-10,height_of_threaded ]) rotate([-90,0,0]) cylinder(r=threaded_rod_d/2+.4,h=380);
  57        #translate([23/2,-.1,height_of_threaded ]) rotate([-90,0,0]) cylinder(r=washer_d/2+.4,h=washer_recess);
  58        #translate([23/2,2.5,height_of_smooth]) rotate([-90,0,0]) cylinder(r=smooth_rod_d/2+.1,h=380);
  59      }
  60
  61 }
  62
  63 module endpostneuvo()
  64 {
  65 endpost_depth = 16;
  66
  67 tie_wrap_extragap = 7; // this moves the slots for the tie wrap out to the
  68                        // edge of the post so that the head of the tiewrap
  69                        // can be moved out of the way of the print bed.
  70
  71      difference() {
  72        union() {
  73          difference() {
  74            cube([23,endpost_depth,47]);
  75            translate([23/2,7,45]) rotate([-90,0,0]) cylinder(r=smooth_rod_d/2+tie_wrap_extragap+tie_wrap_t,h=tie_wrap_w);
  76          }
  77
  78          difference() {
  79          translate([23/2,7,45]) rotate([-90,0,0]) cylinder(r=smooth_rod_d/2+tie_wrap_extragap,h=tie_wrap_w);
  80          translate([0,0,47]) cube([23,endpost_depth,10]);
  81          }
  82        }
  83
  84        #translate([23/2,-10,20]) rotate([-90,0,0]) cylinder(r=threaded_rod_d/2+.4,h=380);
  85        #translate([23/2,-.1,20]) rotate([-90,0,0]) cylinder(r=washer_d/2+.4,h=washer_recess);
  86        #translate([23/2,endpost_depth-washer_recess+.01,20]) rotate([-90,0,0]) cylinder(r=washer_d/2+.4,h=washer_recess);
  87        #translate([23/2,2.5,45]) rotate([-90,0,0]) cylinder(r=smooth_rod_d/2+.1,h=380);
  88      }
  89
  90 }
  91
  92 module bigbase()
  93 {
  94    difference() {
  95     intersection() {
  96        cube([193.5,55,base_thickness]);
  97        translate([193.5/2,-182,-1]) cylinder(r=220,h=base_thickness+2,$fn=150);
  98        }
  99     #translate([193.5/2,0,0]) cylinder(r=10,h=10);
 100 }
 101 }
 102
 103 module brace() {
 104     difference() {  translate([193.5/2,-373.2+5,0]) cylinder(r=386,h=32.6,$fn=200);
 105                     translate([193.5/2,-211.9+5,-2]) cylinder(r=223,h=50,$fn=200);
 106                     #translate([-320,3,-2]) rotate([0,0,270]) cube([900,900,50]);
 107                     translate([-20,-1,-1]) cube([43,16,47]);
 108                     translate([193.5-22.9,-1,-1]) scale([1,1,1]) cube([43,16,47]);
 109                     #translate([192.5/2-23/2+5.9,0,14.5]) cube([11.96,40,20]);
 110
 111 }
 112 }
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