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 VAH |
63 | // Nut trap |
64 | //difference(){ | |
f705c26c | 65 | translate([-2, 17, 4]) cube_fillet([20, 16, 8], center = true, vertical=[7, 0, 0, 0], $fn=4); |
690004c7 VAH |
66 | //bottom hole |
67 | //} | |
c7eb29ba VAH |
68 | } |
69 | } | |
690004c7 VAH |
70 | // here are bushings/bearings |
71 | translate([z_delta, 0, 4 - bushing_xy[0]]) linear_negative(bushing_z, x_box_height); | |
d3618a65 | 72 | |
c7eb29ba | 73 | // belt hole |
f705c26c | 74 | translate([-5.5 - 10 + 1.5, 22 - 9 + offset, 30]) cube([max(idler_width + 2, 11), 55, 27], center = true); |
690004c7 | 75 | |
f705c26c | 76 | translate([-10 - bushing_xy[0], offset, 0]) { |
690004c7 VAH |
77 | if(thru == true){ |
78 | translate([0, -11, 6]) rotate([-90, 0, 0]) pushfit_rod(bushing_xy[0] * 2 + 0.2, 50); | |
79 | translate([0, -11, xaxis_rod_distance+6]) rotate([-90, 0, 0]) pushfit_rod(bushing_xy[0] * 2 + 0.2, 50); | |
80 | } else { | |
81 | translate([0, -7, 6]) rotate([-90, 0, 0]) pushfit_rod(bushing_xy[0] * 2 + 0.2, 50); | |
82 | translate([0, -7, xaxis_rod_distance+6]) rotate([-90, 0, 0]) pushfit_rod(bushing_xy[0] * 2 + 0.2, 50); | |
83 | } | |
84 | } | |
85 | translate([0, 0, 4 - bushing_xy[0]]) { // m5 nut insert | |
86 | translate([0, 17, -10]) rotate([0,0,45]){ | |
87 | cylinder(h = 40, r=2.75); | |
88 | //nut slid in | |
89 | translate([3, 0, 14]) cube([9.2*2, 9.2*sqrt(3/4)+0.4, 4.1], center = true); | |
90 | } | |
c7eb29ba | 91 | } |
c7eb29ba | 92 | } |
c7eb29ba | 93 | //threaded rod |
690004c7 | 94 | translate([0, 17, 0]) %cylinder(h = 70, r=2.5+0.2); |
d3618a65 | 95 | } |
79b4b60a | 96 | |
79b4b60a VAH |
97 | module x_end_idler(){ |
98 | difference() { | |
42436753 | 99 | x_end_base(len=45 + z_delta / 3, offset=-10 - z_delta / 3); |
79b4b60a | 100 | // idler hole |
42436753 | 101 | translate([-20, -15 - z_delta / 2, 30]) { |
f705c26c VAH |
102 | rotate([0, 90, 0]) cylinder(r=m4_diameter / 2, h=33, center=true, $fn=7); |
103 | translate([15 - 2 * single_wall_width, 0, 0]) rotate([90, 0, 90]) cylinder(r=m4_nut_diameter_horizontal / 2, h=3, $fn=6); | |
104 | ||
79b4b60a | 105 | } |
f705c26c | 106 | translate([-6 - x_box_width, 11, 20]) cube([x_box_width + 1, 11, 21]); |
79b4b60a | 107 | } |
f705c26c | 108 | %translate([-14, -9, 20]) x_tensioner(); |
79b4b60a VAH |
109 | } |
110 | ||
f705c26c VAH |
111 | module x_tensioner(len=62, idler_height=20) { |
112 | idlermount(len=len, rod=3.4, idler_height=idler_height, narrow_len=46, narrow_width=idler_width + 2 - single_wall_width); | |
113 | } | |
114 | ||
115 | ||
42436753 | 116 | //translate([-40, 0, 4 - bushing_xy[0]]) x_tensioner(); |
690004c7 VAH |
117 | mirror([0, 0, 0]) x_end_idler(thru=true); |
118 | // translate([40, 40, 0]) x_end_idler(thru=false); | |
42436753 | 119 | //translate([50, 0, 0]) x_end_motor(); |
d3618a65 | 120 | |
690004c7 | 121 | module pushfit_rod(diameter, length){ |
c7eb29ba | 122 | cylinder(h = length, r=diameter/2, $fn=30); |
690004c7 | 123 | translate([0, -diameter/4, length/2]) cube([diameter, diameter/2, length], center = true); |
d3618a65 | 124 | |
690004c7 | 125 | translate([0, -diameter/2-1.2, length/2]) cube([diameter, 1, length], center = true); |
d3618a65 | 126 | } |
eff6608e VAH |
127 | |
128 | if (idler_bearing[3] == 1) { | |
129 | translate([-25, -20 - idler_bearing[0] / 2, 0]) { | |
130 | render() bearing_guide_inner(); | |
131 | translate([idler_bearing[0]+10, 0, 0]) | |
132 | render()bearing_guide_outer(); | |
133 | } | |
134 | } |