box_frame/z-axis.scad

   1 // PRUSA iteration3
   2 // Z axis
   3 // GNU GPL v3
   4 // Josef Průša <josefprusa@me.com>
   5 // Václav 'ax' Hůla <axtheb@gmail.com>
   6 // http://www.reprap.org/wiki/Prusa_Mendel
   7 // http://github.com/prusajr/PrusaMendel
   8
   9 include <configuration.scad>
  10
  11
  12 module zmotorholder(thickness=13){
  13     difference(){
  14         union(){
  15             // Motor holding part
  16             difference(){
  17                 union(){
  18                     zrodholder(thickness=thickness, xlen=45, ylen=45);
  19                     translate([board_to_xz_distance, board_to_xz_distance, 0]) {
  20                         nema17(places=[0,1,1,1], h=thickness);
  21                     }
  22                 }
  23
  24                 // motor screw holes
  25                 translate([board_to_xz_distance, board_to_xz_distance, thickness]) {
  26                     mirror([0,0,1]) translate([0,0,thickness-8])
  27                         nema17(places=[0,1,1,1], holes=true, h=thickness, shadow=5);
  28                 }
  29             }
  30         }
  31     }
  32 }
  33
  34
  35 module zrodholder(thickness=13, ylen=40, xlen=34){
  36     difference(){
  37         union(){
  38             // Rod holding part
  39             difference(){
  40                 union(){
  41                     //piece along the flat side of a board
  42                     cube_fillet([14, ylen, thickness]);
  43                     //hole for Z axis is thru this
  44                     cube_fillet([xlen, 14, thickness]);
  45                     //piece along cut side of the board
  46                     translate([-board_thickness,0,0]) cube_fillet([board_thickness*2, 5, thickness], radius=2);
  47                 }
  48                 //smooth rod hole
  49                 translate([board_to_xz_distance,5+(smooth_bar_diameter/2),-1]) cylinder(h=board_thickness+2, r=(smooth_bar_diameter/2));
  50                 //inside rouned corner
  51                 translate([0,5,-1]) cylinder(r=1.2, h=thickness+2, $fn=8);
  52                 //side screw
  53                 translate([-board_thickness/2, 0, thickness/2]) rotate([-90, 0, 0]) screw();
  54                 //front screw
  55                 translate([13.3, 19, thickness/2]) rotate([0, -90, 0]) screw(head_drop=5);
  56                 translate([14, 33, thickness/2]) rotate([0, -90, 0]) screw(head_drop=5);
  57             }
  58         }
  59     }
  60 }
  61
  62 translate([0, -2, 0]) mirror([0,1,0]) zmotorholder();
  63 translate([0,2,0]) zmotorholder();
  64
  65 translate([21,-59,0]) zrodholder();
  66 translate([20,59,0]) mirror([0,1,0]) zrodholder();