| 1 | // PRUSA iteration3 |
| 2 | // Compact extruder |
| 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 | |
| 8 | |
| 9 | |
| 10 | |
| 11 | module motor_dummy(){ |
| 12 | translate([-22,-22,-5]) %cube([44,44,5]); |
| 13 | translate([18,18,-5]) %cylinder(r=2, h=24); |
| 14 | translate([18,-18,-5]) %cylinder(r=2, h=24); |
| 15 | translate([-18,18,-5]) %cylinder(r=2, h=24); |
| 16 | translate([-18,-18,-5]) %cylinder(r=2, h=24); |
| 17 | translate([-22+2.5+10,0,-5]) %cylinder(r=2.5, h=7); |
| 18 | |
| 19 | } |
| 20 | |
| 21 | module extruder_base(){ |
| 22 | // Main body |
| 23 | translate([-1-22,-2,0]) cube([22+22,56,24]); |
| 24 | // Extruder plate mount |
| 25 | translate([-16-28,49-5-8,0]) cube([59+28,18,24]); |
| 26 | // Carriage mount cylinders |
| 27 | translate([11,25,0]){ |
| 28 | //translate([-12,24,0]) cylinder(r=5, h=24); |
| 29 | //translate([12,24,0]) cylinder(r=5, h=24); |
| 30 | } |
| 31 | } |
| 32 | |
| 33 | module extruder_holes(){ |
| 34 | // 1st extruder |
| 35 | translate([11,25,0]){ // Translate to center of the main block |
| 36 | // Main shaft opening |
| 37 | translate([0,-2,-1]) cylinder(r=6.5, h=26); |
| 38 | |
| 39 | // Lower motor mount hole |
| 40 | translate([-8.5,18-2,-1]) cylinder(r=2, h=35); |
| 41 | translate([-8.5,18-2,21]) cylinder(r=3.1, h=35); |
| 42 | // Upper motor mount hole |
| 43 | translate([-8.5,-18-2,-1]) cylinder(r=2, h=35); |
| 44 | translate([-8.5,-18-2,21]) cylinder(r=3.1, h=35); |
| 45 | // Idler motor mount hole |
| 46 | translate([-8.5+36,18-2,-1]) cylinder(r=2, h=35); |
| 47 | translate([-8.5+36,18-2,21]) cylinder(r=3.1, h=35); |
| 48 | |
| 49 | //Idler place |
| 50 | |
| 51 | translate([10,-11,1]) cube([13,30,22]); |
| 52 | |
| 53 | // Carriage mount right screw head hole |
| 54 | translate([-12-12,24,-3]) cylinder(r=3.5, h=23); |
| 55 | // Carriage mount left screw head hole |
| 56 | translate([12-12,24,-3]) cylinder(r=3.5, h=23); |
| 57 | // Carriage mount right screw hole |
| 58 | translate([-12-12,24,20.5]) cylinder(r=2, h=23); |
| 59 | // Carriage mount left screw head hole |
| 60 | translate([12-12,24,20.5]) cylinder(r=2, h=23); |
| 61 | // Idler bearing cutout |
| 62 | translate([11,0-2,-4.5+10]) cylinder(r=11, h=20); |
| 63 | } |
| 64 | |
| 65 | // Filament path |
| 66 | translate([1.5+11+3.5,65,11]) rotate([90,0,0]) cylinder(r=2, h=70); |
| 67 | |
| 68 | mirror([1,0,0])translate([1.5+11+3.51+1,65,11]) rotate([90,0,0]) cylinder(r=2, h=70); |
| 69 | |
| 70 | // 2nd extruder |
| 71 | translate([-1,0,0]) mirror([1,0,0]) translate([11,25,0]){ // Translate to center of the main block |
| 72 | // Main shaft opening |
| 73 | translate([0,-2,-1]) cylinder(r=6.5, h=26); |
| 74 | |
| 75 | // Lower motor mount hole |
| 76 | translate([-8.5,18-2,-1]) cylinder(r=2, h=35); |
| 77 | translate([-8.5,18-2,21]) cylinder(r=3.1, h=35); |
| 78 | // Upper motor mount hole |
| 79 | translate([-8.5,-18-2,-1]) cylinder(r=2, h=35); |
| 80 | translate([-8.5,-18-2,21]) cylinder(r=3.1, h=35); |
| 81 | // Idler motor mount hole |
| 82 | translate([-8.5+36,18-2,-1]) cylinder(r=2, h=35); |
| 83 | translate([-8.5+36,18-2,21]) cylinder(r=3.1, h=35); |
| 84 | |
| 85 | translate([10,-11,1]) cube([13,30,22]); |
| 86 | |
| 87 | // Idler bearing cutout |
| 88 | translate([11,0-2,-4.5+10]) cylinder(r=11, h=20); |
| 89 | } |
| 90 | |
| 91 | |
| 92 | // Left extruder plate mounting hole |
| 93 | translate([25,65,11]) rotate([90,0,0]) cylinder(r=1.8, h=70); |
| 94 | translate([25,47,11]) rotate([90,0,0]) cylinder(r=3.1, h=70, $fn=6); |
| 95 | // Right extruder plate mounting hole |
| 96 | |
| 97 | translate([-26,65,11]) rotate([90,0,0]) cylinder(r=1.8, h=70); |
| 98 | translate([-26,47,11]) rotate([90,0,0]) cylinder(r=3.1, h=70, $fn=6); |
| 99 | |
| 100 | // Idler mounting holse |
| 101 | translate([11,25,10]){ |
| 102 | // Nut traps |
| 103 | translate([-3,-32,6-5.5/2]) cube([2.7,14,5.5]); |
| 104 | translate([-3,-32,-4-5.5/2]) cube([2.7,14,5.5]); |
| 105 | |
| 106 | translate([-3-20,-32,6-5.5/2]) cube([2.7,14,5.5]); |
| 107 | translate([-3-20,-32,-4-5.5/2]) cube([2.7,14,5.5]); |
| 108 | // Screws |
| 109 | translate([-50,-22,-4]) rotate([0,90,0]) cylinder(r=2, h=80); |
| 110 | translate([-50,-22,6]) rotate([0,90,0]) cylinder(r=2, h=80); |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | module extruder_idler_base(){ |
| 115 | translate([0.25,0,0]) cube([19.5,45.5,8+3]); |
| 116 | |
| 117 | } |
| 118 | |
| 119 | module extruder_idler_holes(){ |
| 120 | translate([10,25,0]){ |
| 121 | // Main cutout |
| 122 | cube([10,23,25], center= true); |
| 123 | // Idler shaft |
| 124 | translate([-12,0,4.1+2])rotate([0,90,0])cylinder(r=4.1, h=24); |
| 125 | // Screw holes |
| 126 | translate([5,-20,-1])cylinder(r=2.2, h=24); |
| 127 | translate([-5,-20,-1])cylinder(r=2.2, h=24); |
| 128 | } |
| 129 | } |
| 130 | |
| 131 | |
| 132 | // Idler final part |
| 133 | module idler(){ |
| 134 | difference(){ |
| 135 | extruder_idler_base(); |
| 136 | extruder_idler_holes(); |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | //translate([10,0,1]) rotate([0,-90,0]) idler(); |
| 141 | translate([-68,-8,0]) idler(); |
| 142 | // Extruder final part |
| 143 | module extruder(){ |
| 144 | translate([-23,2,0])difference(){ |
| 145 | extruder_base(); |
| 146 | extruder_holes(); |
| 147 | } |
| 148 | } |
| 149 | |
| 150 | extruder(); |
| 151 | translate([-2.5,25,0]) motor_dummy(); |