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Very basic import of modified Wilson TS/2 x-ends
[clinton/prusa3.git] / box_frame / z-axis.scad
CommitLineData
2159eed1
VAH		 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
8e93419f 7// http://github.com/josefprusa/Prusa3
2159eed1 8
65a72cd5
T		 9// ThingDoc entries
10/**
11 * @id zMotorHolder
12 * @name Z Axis Motor Holder
13 * @category Printed
14 */
1fbe5b71 15
65a72cd5
T		 16/**
17 * @id zRodHolder
18 * @name Z Axis Rod Holder
19 * @category Printed
20 */
1fbe5b71
CE		 21
22// todo
23
24// - fix motor holder wall removal so it is sensible and actually
25// removes the right thing
26// - fix changing board_thickness, add way to specify # of bolts in
27// side of frame (assume even spacing for now)
28
3506b70b
VAH		 29include <configuration.scad>
30
cec35279 31module zmotorholder(thickness=(frame_type == frame_single ? 38 : 23), bottom_thickness=5){
fb91eeba
CE		 32 position_y = board_to_xz_distance + zaxis_delta_y + zmotor_delta_y;
33 position_x = board_to_xz_distance + zaxis_delta_x + zmotor_delta_x;
3506b70b
VAH		 34 difference(){
35 union(){
36 // Motor holding part
37 difference(){
38 union(){
d4f661da 39 zrodholder(thickness=thickness, xlen=45 + zmotor_delta_x + zaxis_delta_x, ylen=48 + 5 + zmotor_delta_y + zaxis_delta_y, zdelta=((i_want_to_use_single_plate_dxf_and_make_my_z_weaker == 0) ? 0 : 5), bottom_x = 14 + zaxis_delta_x + zmotor_delta_x, bottom_y = 15 + zmotor_delta_y + zaxis_delta_y, am_top=0, bottom_thickness=bottom_thickness);
fb91eeba 40 translate([position_x, position_y, 0]) {
d4f661da 41 nema17(places=[0, 1, 1, 1], h=bottom_thickness + layer_height, $fn=23, shadow=layer_height + 2);
3506b70b
VAH		 42 }
43 }
846248f3 44 // remove any interfering walls
fb91eeba
CE		 45 translate([position_x, position_y, layer_height + 2 + 21 +3]) {
46 cube([43 + zmotor_delta_x + zaxis_delta_x,43,42], center = true);
47 }
48
1fbe5b71
CE		 49 // motor rotor clearance
50 translate([position_x, position_y, 0]) {
51 cylinder(r=11,h=20, center = true);
846248f3 52 }
d3618a65 53
3506b70b 54 // motor screw holes
cec35279
CE		 55
56 // FIXME: y = board_to_xz distance looks supicious --
57 // the smooth rod is offset by a fixed amount so why
58 // would the motor mount be moved in both directions
59 // instead of just away from the frame? X-axis does
60 // not use this to offset the leadscrew hole either.
fb91eeba 61 translate([position_x, position_y, thickness]) {
5e8013bd 62 mirror([0, 0, 1]) translate([0, 0, thickness-8])
1fbe5b71 63 #nema17(places=[1, 1, 1, 1], holes=true, h=bottom_thickness + 1, $fn=small_hole_segments);
854f95f0 64 //shadow=-6 + layer_height);
3506b70b
VAH		 65 }
66 }
67 }
68 }
d3618a65 69}
3506b70b
VAH		 70
71
cec35279 72module zrodholder(thickness=(frame_type == frame_single ? 14 : 15), bottom_thickness=5, ylen=44, xlen=34, zdelta=0, bottom_y=14, bottom_x=14, am_top=1){
5cae2970 73 holder_inner_r = 9;
0f6ec51a 74 holder_inner_r2 = 2;
d4f661da 75 smooth_rod_insert_radius = bushing_z[0] + 6 * single_wall_width;
3506b70b
VAH		 76 difference(){
77 union(){
3506b70b 78 difference(){
cec35279 79 union() {
3506b70b 80 //piece along the flat side of a board
cec35279
CE		 81 cube_fillet([bottom_x, ylen, bottom_thickness], vertical=[8, 3, 0, 0]);
82 if (frame_type == frame_alu) {
83 top_radius = am_top ? thickness : thickness / 3;
1fbe5b71 84 cube_fillet([5, ylen, thickness], vertical=[0, 0, 0, 0], top = [top_radius, 0, 0, 0]);
cec35279 85
1fbe5b71
CE		 86 // FIXME: make rear/top bit optional, but don't remove entirely
87 // (printer seems to make less noise with the rear bit)
88 %if (am_top) {
cec35279
CE		 89 // rear bracket
90 translate ([-board_thickness - 5, 0, 0])
1fbe5b71 91 cube_fillet([5, ylen, thickness], vertical=[0, 0, 0, 0], top = [top_radius, 0, 0, 0]);
cec35279
CE		 92 translate ([-board_thickness, 5, 0])
93 cube ([board_thickness, ylen - 6, bottom_thickness/2]);
94 }
95 }
96 else {
97 cube_fillet([5, ylen, thickness], vertical=[3, 3, 0, 0], top = [thickness / 1.7, 0, 0, 5]);
98 }
99
100 //hole for Z axis is thru this
846248f3 101 cube_fillet([xlen + zaxis_delta_x, bottom_y, bottom_thickness], vertical=[3, 0, 0, 3]);
fb91eeba 102 if (bottom_x < board_to_xz_distance - z_delta + zaxis_delta_x) {
9865d15a
CE		 103 translate([bottom_x, bottom_y, 0]) {
104 //large fillet that makes it stiffer by lot. Thanks to Marcus Wolschon
105 difference(){
106 cube([holder_inner_r, holder_inner_r, bottom_thickness]);
107 translate([holder_inner_r, holder_inner_r, -0.5])
108 cylinder(r=holder_inner_r, h=bottom_thickness + 1);
109 }
110 }
111 }
cec35279
CE		 112 if (frame_type != frame_alu) {
113 translate([5, 5, 0]) {
114 difference(){
115 cube([holder_inner_r2, holder_inner_r2, thickness - 5.5]);
116 translate([holder_inner_r2, holder_inner_r2, -0.5])
117 cylinder(r=holder_inner_r2, h=thickness + 1, $fn=20);
118 }
119 }
0f6ec51a 120 }
0802ac49
CE		 121 // leadscrew bearing hole is cut from this
122 if (am_top) {
fb91eeba
CE		 123 lead_bearing_y = board_to_xz_distance + zaxis_delta_y + zmotor_delta_y;
124 lead_bearing_x = board_to_xz_distance + zaxis_delta_x + zmotor_delta_x;
d4f661da 125 translate ([lead_bearing_x, lead_bearing_y, 0]) cylinder (d = bearing_608[0] + single_wall_width * 6, h = bearing_608[2] + layer_height*6);
0802ac49 126 }
3506b70b 127 //piece along cut side of the board
cec35279
CE		 128 if (frame_type == frame_box) {
129 translate([-board_thickness, 0, 0])
130 cube_fillet([board_thickness + board_to_xz_distance + bushing_z[0], 5, thickness], radius=2, top = [0, 0, 0, thickness], $fn=99);
131 } else if (frame_type == frame_alu) {
1fbe5b71 132 side_thickness = 5.0;// - zaxis_delta_y;
846248f3 133
1fbe5b71
CE		 134 translate ([0, 0 /* zaxis_delta_y */, 0]) {
135 // back
136 translate([-board_thickness, 0, 0]) {
137 cube_fillet([board_thickness, side_thickness, thickness], vertical = [0, 0, 0, 0], top = [0, 0, 0, 0]);
138 }
139
140 // front
141 //cube_fillet([am_top ? board_to_xz_distance + zaxis_delta_x - smooth_rod_insert_radius : xlen + zaxis_delta_x , side_thickness, thickness], vertical = [2, 0, 0, 0], top = [0, 0, 0, thickness]);
142 cube_fillet([am_top ? board_to_xz_distance + zaxis_delta_x - smooth_rod_insert_radius : xlen , side_thickness, thickness / (am_top ? 1 : 1.5)], vertical = [2, 0, 0, 0], top = [0, 0, 0, thickness]);
1fbe5b71 143 }
846248f3 144
d4f661da
CE		 145 if (zaxis_delta_x > 0 || zaxis_delta_y < 0) {
146 // extra support along edge of smooth rod hole, if it has been moved away from the frame
147 radius_diff = smooth_rod_insert_radius - bushing_z[0];
148 hull () {
149 translate([-board_thickness/3, zaxis_delta_x/3, 0]) {
150 cube_fillet([board_thickness/3 + board_to_xz_distance + zaxis_delta_x - bushing_z[0] , -zaxis_delta_y/3 , thickness/2], vertical = [2, 0, 4, 0], top = [0, 0, 4, thickness/2]);
151 }
152 translate([board_to_xz_distance/2, zaxis_delta_y + radius_diff/6, 0]) {
153 cube_fillet([board_to_xz_distance/2 + zaxis_delta_x + smooth_rod_insert_radius*0.75, radius_diff/3 , bottom_thickness*2], vertical = [2, 0, 4, bushing_z[0] * smooth_rod_insert_radius/bushing_z[0]], top = [0, 0, 2, thickness/4]);
154 }
846248f3 155 }
cec35279 156 }
5e8013bd 157 } else {
eb40b77a 158 translate([-board_thickness/2, 0, 0])
0f6ec51a 159 cube_fillet([board_thickness/2 + board_to_xz_distance + bushing_z[0], 5, thickness], radius=2, top = [0, 0, 0, thickness], $fn=99);
5e8013bd
VAH		 160 }
161 //smooth rod insert
fb91eeba 162 translate([board_to_xz_distance - z_delta + zaxis_delta_x, 9 + zaxis_delta_y, 0])
1ebfb5d4 163 cylinder(h=bottom_thickness * (am_top ? 1.75 : 1.75), r=smooth_rod_insert_radius);
3506b70b 164 }
0802ac49
CE		 165
166 // === difference ===
167
3506b70b 168 //smooth rod hole
fb91eeba 169 #translate([board_to_xz_distance - z_delta + zaxis_delta_x, 9 + zaxis_delta_y, -1]) cylinder(h=am_top ? thickness+20 : bottom_thickness, r=bushing_z[0] + single_wall_width / 4);
3506b70b 170 //inside rouned corner
cec35279
CE		 171 if (frame_type != frame_alu) {
172 translate([0, 5, -1]) cylinder(r=0.8, h=100, $fn=8);
173 }
174
0802ac49
CE		 175 // leadscrew hole
176 if (am_top) {
fb91eeba
CE		 177 lead_bearing_y = board_to_xz_distance + zaxis_delta_y + zmotor_delta_y;
178 lead_bearing_x = board_to_xz_distance + zaxis_delta_x + zmotor_delta_x;
179 translate ([lead_bearing_x, lead_bearing_y, 0]) {
d4f661da
CE		 180 union () {
181 translate ([0, 0, 1]) cylinder (d = 10.8, h = bearing_608[2]*2);
182 translate ([0, 0, -1]) cylinder (d = bearing_608[0], h = bearing_608[2]+1);
0802ac49
CE		 183 }
184 }
185 }
186
5e8013bd 187 //front screws
cec35279
CE		 188 if (frame_type == frame_single) {
189 //single plate has both screws on front
190 translate([16, 35, bottom_thickness + 4.5 + zdelta]) rotate([0, -90, 0]) {
191 plate_screw();
192 }
193 translate([16, 15, bottom_thickness + 4.5 + zdelta]) rotate([0, -90, 0]) {
194 plate_screw();
195 }
196 //motor mount has third screw
197 translate([16, 25, bottom_thickness + 4.5 + zdelta + 20]) rotate([0, -90, 0]) {
198 plate_screw();
199 }
200 } else if (frame_type == frame_alu) {
201 // three screws on front
04ddc678
CE		 202 translate([18, ylen - board_thickness/2, bottom_thickness/2 + board_thickness/2 + zdelta]) rotate([0, -90, 0]) plate_screw();
203 translate([18, 5 + board_thickness/2, bottom_thickness/2 + board_thickness/2 + zdelta]) rotate([0, -90, 0]) plate_screw();
204 translate([18, 5 + board_thickness/2, thickness - board_thickness/2]) rotate([0, -90, 0])
cec35279
CE		 205 plate_screw();
206
207 // motor mount screw for opposite extrusion
04ddc678 208 translate([18, ylen - board_thickness/2, thickness - board_thickness/2]) rotate([0, -90, 0])
cec35279
CE		 209 plate_screw();
210
211 // back plate
04ddc678 212 translate([-board_thickness-18, ylen - board_thickness/2, thickness - board_thickness/2]) rotate([0, 90, 0])
cec35279 213 plate_screw();
04ddc678 214 translate([-board_thickness-18, 5 + board_thickness/2, thickness - board_thickness/2]) rotate([0, 90, 0])
cec35279 215 plate_screw();
04ddc678 216 translate([-board_thickness-18, ylen - board_thickness/2, bottom_thickness/2 + board_thickness/2 + zdelta]) rotate([0, 90, 0]) plate_screw();
d4f661da 217 translate([-board_thickness-18, 5 + board_thickness/2, bottom_thickness/2 + board_thickness/2 + zdelta]) rotate([0, 90, 0]) plate_screw();
cec35279
CE		 218
219 //side screws
d4f661da 220 translate([-board_thickness/2, -13, thickness-board_thickness/2]) rotate([-90, 0, 0]) plate_screw();
04ddc678 221 translate([-board_thickness/2, -13, bottom_thickness/2 + board_thickness/2 + zdelta]) rotate([-90, 0, 0]) plate_screw();
cec35279
CE		 222 } else if (frame_type == frame_box) {
223 translate([16, 30, bottom_thickness+4]) rotate([0, -90, 0]) {
224 plate_screw();
225 }
5e8013bd 226 //side screw
0f6ec51a 227 translate([-board_thickness/2, -11, thickness/2]) rotate([-90, 0, 0]) plate_screw();
b32bbd0f 228 }
3506b70b
VAH		 229 }
230 }
231 }
d3618a65 232}
1422dcbd
CE		 233
234if (frame_type == frame_alu) {
235 // 2020 aluminum frame parts are larger
7b8e1e54
CE		 236 translate([0, -60, 0]) zmotorholder(thickness=55, bottom_thickness=6);
237 translate([0, 60, 0]) mirror([0, 1, 0]) zmotorholder(thickness=55, bottom_thickness=6);
238
d4f661da
CE		 239 translate([110 + board_thickness, board_thickness+10, 0]) rotate([0,0,90]) zrodholder(thickness=board_thickness * 2 + 5, ylen = board_thickness * 2 + 10, bottom_x=43 + zaxis_delta_x, bottom_thickness=6);
240 translate([110 + board_thickness, -(board_thickness+10), 0]) rotate([0, 0, -90]) mirror([0, 1, 0]) zrodholder(thickness=board_thickness * 2 + 5, ylen = board_thickness * 2 + 10, bottom_x=43 + zaxis_delta_x, bottom_thickness=6);
241
7b8e1e54 242
1422dcbd
CE		 243}
244else {
245 translate([10, -50, 0]) zmotorholder();
246 translate([0, 50, 0]) mirror([0, 1, 0]) zmotorholder();
247 translate([67, 14, 0]) rotate([0,0,90]) zrodholder();
248 translate([77, -14, 0]) rotate([0, 0, -90]) mirror([0, 1, 0]) zrodholder();
249}
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