Commit | Line | Data |
---|---|---|
2159eed1 VAH |
1 | // PRUSA iteration3 |
2 | // X ends | |
3 | // GNU GPL v3 | |
dba99e69 | 4 | // Josef Průša <josefprusa@me.com> |
3b7acad1 | 5 | // Václav 'ax' Hůla <axtheb@gmail.com> |
2159eed1 VAH |
6 | // http://www.reprap.org/wiki/Prusa_Mendel |
7 | // http://github.com/prusajr/PrusaMendel | |
8 | ||
2fc35ca2 | 9 | include <configuration.scad> |
d3618a65 | 10 | use <bushing.scad> |
eff6608e | 11 | use <inc/bearing-guide.scad> |
f705c26c | 12 | use <y-drivetrain.scad> |
86c402d8 | 13 | |
1e67bf0e VAH |
14 | //height and width of the x blocks depend on x smooth rod radius |
15 | x_box_height = 52 + 2 * bushing_xy[0]; | |
16 | x_box_width = (bushing_xy[0] <= 4) ? 17.5 : bushing_xy[0] * 2 + 9.5; | |
d3618a65 NZ |
17 | |
18 | module x_end_motor(){ | |
19 | ||
690004c7 | 20 | mirror([0, 1, 0]) { |
c7eb29ba | 21 | |
02345ac0 | 22 | x_end_base([3, 3, min((bushing_xy[0] - 4) * 2, 3), 0], thru=false); |
c7eb29ba | 23 | |
690004c7 VAH |
24 | |
25 | translate([0, -z_delta - 2, 0]) difference(){ | |
79b4b60a | 26 | union(){ |
f705c26c VAH |
27 | intersection() { |
28 | translate([-15, -34, 30]) cube([20, 60, x_box_height], center = true); | |
29 | union() { | |
30 | translate([-13.75, -14 + z_delta / 2, 24]) cube_fillet([17.5, 14 + z_delta, 55], center = true, vertical=[0, 0, 3, 1.5], top=[0, 3, 6, 3], $fn=16); | |
31 | translate([-10, -34, 9]) intersection(){ | |
32 | translate([0, 0, -5]) cube_fillet([10, 37, 28], center = true, vertical=[0, 0, 0, 0], top=[0, 3, 5, 3]); | |
33 | translate([-10/2, 10, -26]) rotate([45, 0, 0]) cube_fillet([10, 60, 60], radius=2); | |
34 | } | |
35 | } | |
79b4b60a | 36 | } |
f705c26c | 37 | translate([-15.5, -32, 30.25]) rotate([90, 0, 0]) rotate([0, 90, 0]) nema17(places=[1, 0, 1, 1], h=11); |
82e9f136 | 38 | } |
c7eb29ba | 39 | |
79b4b60a | 40 | // motor screw holes |
690004c7 | 41 | translate([21-5, -21-11, 30.25]){ |
79b4b60a | 42 | // belt hole |
f705c26c | 43 | translate([-30, 11, -0.25]) cube([11, 36, 24], center = true); |
79b4b60a | 44 | //motor mounting holes |
f705c26c | 45 | translate([-28.5, 0, 0]) rotate([0, 0, 0]) rotate([0, 90, 0]) nema17(places=[1, 1, 0, 1], holes=true, shadow=5, $fn=7, h=8); |
79b4b60a | 46 | } |
c7eb29ba | 47 | } |
79b4b60a | 48 | //smooth rod caps |
f7c38069 VAH |
49 | translate([-22, -10, 0]) cube([17, 2, 15]); |
50 | translate([-22, -10, 45]) cube([17, 2, 10]); | |
c7eb29ba | 51 | } |
d3618a65 NZ |
52 | } |
53 | ||
f705c26c | 54 | module x_end_base(vfillet=[3, 3, 3, 3], thru=true, len=40, offset=0){ |
d3618a65 | 55 | |
c7eb29ba VAH |
56 | difference(){ |
57 | union(){ | |
f705c26c | 58 | translate([-10 - bushing_xy[0], -10 + len / 2 + offset, 30]) cube_fillet([x_box_width, len, x_box_height], center=true, vertical=vfillet, top=[5, 3, 5, 3]); |
690004c7 VAH |
59 | |
60 | translate([0, 0, 4 - bushing_xy[0]]) { | |
61 | //rotate([0, 0, 0]) translate([0, -9.5, 0]) | |
f705c26c | 62 | translate([z_delta, 0, 0]) render(convexity = 5) linear(bushing_z, x_box_height); |
690004c7 | 63 | // Nut trap |
7b4231d9 | 64 | translate([-2, 18, 5]) cube_fillet([20, 14, 10], center = true, vertical=[8, 0, 0, 5], $fn=4); |
690004c7 | 65 | //} |
c7eb29ba VAH |
66 | } |
67 | } | |
690004c7 VAH |
68 | // here are bushings/bearings |
69 | translate([z_delta, 0, 4 - bushing_xy[0]]) linear_negative(bushing_z, x_box_height); | |
d3618a65 | 70 | |
c7eb29ba | 71 | // belt hole |
f705c26c | 72 | translate([-5.5 - 10 + 1.5, 22 - 9 + offset, 30]) cube([max(idler_width + 2, 11), 55, 27], center = true); |
690004c7 | 73 | |
f705c26c | 74 | translate([-10 - bushing_xy[0], offset, 0]) { |
690004c7 VAH |
75 | if(thru == true){ |
76 | translate([0, -11, 6]) rotate([-90, 0, 0]) pushfit_rod(bushing_xy[0] * 2 + 0.2, 50); | |
77 | translate([0, -11, xaxis_rod_distance+6]) rotate([-90, 0, 0]) pushfit_rod(bushing_xy[0] * 2 + 0.2, 50); | |
78 | } else { | |
79 | translate([0, -7, 6]) rotate([-90, 0, 0]) pushfit_rod(bushing_xy[0] * 2 + 0.2, 50); | |
80 | translate([0, -7, xaxis_rod_distance+6]) rotate([-90, 0, 0]) pushfit_rod(bushing_xy[0] * 2 + 0.2, 50); | |
81 | } | |
82 | } | |
7b4231d9 VAH |
83 | translate([0, 0, 5 - bushing_xy[0]]) { // m5 nut insert |
84 | translate([0, 17, 0]) rotate([0, 0, 45]){ | |
85 | translate([0, 0, -1]) cylinder(h=(4.1 / 2 + 5), r=2.75); | |
86 | translate ([0, 0, 4.1 / 2 + 4 + layer_height]) cylinder(h=10, r=2.75); | |
87 | //nut slid in | |
88 | translate([3, 0, 4]) cube([8, 9.2 * sqrt(3 / 4) + 0.4, 4.1], center = true); | |
89 | translate([0, 0, 4]) cylinder(r=4.6, h=4.1, center = true, $fn=6); | |
90 | %translate([0, 0, 4]) cylinder(r=4.6, h=4.1, center = true, $fn=6); | |
91 | ||
92 | } | |
c7eb29ba | 93 | } |
c7eb29ba | 94 | } |
c7eb29ba | 95 | //threaded rod |
690004c7 | 96 | translate([0, 17, 0]) %cylinder(h = 70, r=2.5+0.2); |
d3618a65 | 97 | } |
79b4b60a | 98 | |
79b4b60a VAH |
99 | module x_end_idler(){ |
100 | difference() { | |
42436753 | 101 | x_end_base(len=45 + z_delta / 3, offset=-10 - z_delta / 3); |
79b4b60a | 102 | // idler hole |
42436753 | 103 | translate([-20, -15 - z_delta / 2, 30]) { |
f705c26c VAH |
104 | rotate([0, 90, 0]) cylinder(r=m4_diameter / 2, h=33, center=true, $fn=7); |
105 | translate([15 - 2 * single_wall_width, 0, 0]) rotate([90, 0, 90]) cylinder(r=m4_nut_diameter_horizontal / 2, h=3, $fn=6); | |
106 | ||
79b4b60a | 107 | } |
6229a141 | 108 | translate([-6 - x_box_width, 11, 21.5]) cube([x_box_width + 1, 11, 17.5]); |
79b4b60a | 109 | } |
6229a141 | 110 | %translate([-14, -9, 22]) x_tensioner(); |
79b4b60a VAH |
111 | } |
112 | ||
6229a141 | 113 | module x_tensioner(len=62, idler_height=16) { |
0d8b4afe | 114 | idlermount(len=len, rod=m4_diameter / 2, idler_height=idler_height, narrow_len=46, narrow_width=idler_width + 2 - single_wall_width); |
f705c26c VAH |
115 | } |
116 | ||
117 | ||
0d8b4afe | 118 | translate([-40, 0, 4 - bushing_xy[0]]) x_tensioner(); |
0eddffe6 | 119 | mirror([0, 0, 0]) x_end_idler(thru=true); |
67f4a88f | 120 | translate([50, 0, 0]) x_end_motor(); |
d3618a65 | 121 | |
690004c7 | 122 | module pushfit_rod(diameter, length){ |
c7eb29ba | 123 | cylinder(h = length, r=diameter/2, $fn=30); |
690004c7 | 124 | translate([0, -diameter/4, length/2]) cube([diameter, diameter/2, length], center = true); |
d3618a65 | 125 | |
690004c7 | 126 | translate([0, -diameter/2-1.2, length/2]) cube([diameter, 1, length], center = true); |
d3618a65 | 127 | } |
eff6608e VAH |
128 | |
129 | if (idler_bearing[3] == 1) { | |
130 | translate([-25, -20 - idler_bearing[0] / 2, 0]) { | |
131 | render() bearing_guide_inner(); | |
132 | translate([idler_bearing[0]+10, 0, 0]) | |
133 | render()bearing_guide_outer(); | |
134 | } | |
135 | } |