summaryrefslogtreecommitdiff
Unidiff
Diffstat (more/less context) (ignore whitespace changes)
-rw-r--r--another.scad73
1 files changed, 36 insertions, 37 deletions
diff --git a/another.scad b/another.scad
index 78d4320..b752f30 100644
--- a/another.scad
+++ b/another.scad
@@ -1,512 +1,511 @@
1draft=true; 1draft=true;
2layer_height=0.2; extrusion_width=0.4; 2layer_height=0.2; extrusion_width=0.4;
3epsilon=0.01; 3epsilon=0.01;
4$fs=0.0125; 4$fs=0.0125;
5 5
6use <pushfittery.scad>; 6use <pushfittery.scad>;
7include <pushfit_data.scad>; 7include <pushfit_data.scad>;
8 8
9module the_extruder( 9module the_extruder(
10 // motor properties 10 // motor properties
11 gearbox_d = 36, 11 gearbox_d = 36,
12 mount_d = 28, // the distance between opposite mounting holes 12 mount_d = 28, // the distance between opposite mounting holes
13 mounthole_depth = 5, 13 mounthole_depth = 5,
14 mounthole_min_depth = 3, mounthole_max_depth = 4, 14 mounthole_min_depth = 3, mounthole_max_depth = 4,
15 protrusion_d = 22, protrusion_h = 2.2, // the dimensions of the protrusion on top of gearbox 15 protrusion_d = 22, protrusion_h = 2.2, // the dimensions of the protrusion on top of gearbox
16 bore_d = 8, bore_l = 17.6, 16 bore_d = 8, bore_l = 17.6,
17 bore_dd = 7, 17 bore_dd = 7,
18 // pulley properties 18 // pulley properties
19 pulley_d = 11.5, pulley_h=10, 19 pulley_d = 11.5, pulley_h=10,
20 pulley_elevation = 1, // pulley elevation above the protrusion 20 pulley_elevation = 1, // pulley elevation above the protrusion
21 teeth_elevation = 7.5, // distance from the bottom of the pulley to its teeth 21 teeth_elevation = 7.5, // distance from the bottom of the pulley to its teeth
22 filament_offset = (8.25-(3.0+3.5)/2) - 11.5/2 + 1.75/2, 22 filament_offset = (8.25-(3.0+3.5)/2) - 11.5/2 + 1.75/2,
23 // idler properties 23 // idler properties
24 idler_d = 9.5, idler_h = 4, idler_id = 3,// idler dimensions: outer and inner diameters and height 24 idler_d = 9.5, idler_h = 4, idler_id = 3,// idler dimensions: outer and inner diameters and height
25 // spring properties 25 // spring properties
26 spring_d = 10, spring_lc = 9.6, // spring diameter and compressed length 26 spring_d = 10, spring_lc = 9.6, // spring diameter and compressed length
27 // filament path properties 27 // filament path properties
28 filament_d = 1.75, 28 filament_d = 1.75,
29 filament_path_d = 2, 29 filament_path_d = 2,
30 filament_guide_d = 4, // PTFE filament guide diameter 30 filament_guide_d = 4, // PTFE filament guide diameter
31 // knob properties 31 // knob properties
32 knob_h = 10, 32 knob_h = 10,
33 knob_bore_l = 4, 33 knob_bore_l = 4,
34 knob_indent_d = 4, 34 knob_indent_d = 4,
35 knob_indents = 12, 35 knob_indents = 12,
36 // spring tensioner 36 // spring tensioner
37 st_nut_d = 9, st_nut_h = 4, 37 st_nut_d = 9, st_nut_h = 4,
38 st_screw_d = 5, 38 st_screw_d = 5,
39 st_thickshell = 8*extrusion_width, st_thinshell = 4*extrusion_width, 39 st_thickshell = 8*extrusion_width, st_thinshell = 4*extrusion_width,
40 40
41 // screw it 41 // screw it
42 mount_screw_d = 3.1, mount_screw_l = 20, 42 mount_screw_d = 3.1, mount_screw_l = 20,
43 mount_screwhead_d=6, mount_screwhead_h=3, 43 mount_screwhead_d=6, mount_screwhead_h=3,
44 idler_screw_d = 3, 44 idler_screw_d = 3,
45 idler_screwhead_d=6, idler_screwhead_h=3, 45 idler_screwhead_d=6, idler_screwhead_h=3,
46 46
47 pf = pushfit_embeddest, 47 pf = pushfit_embeddest,
48 pf_shell = max(3*layer_height,3*extrusion_width), 48 pf_shell = max(3*layer_height,3*extrusion_width),
49 pf_smooth = true, 49 pf_smooth = true,
50 50
51 // empty spaces 51 // empty spaces
52 idler_travel = 3, // how far should idler travel when pressed 52 idler_travel = 3, // how far should idler travel when pressed
53 idler_clearance=1, 53 idler_clearance=1,
54 pulley_d_clearance=2, 54 pulley_d_clearance=2,
55 pulley_small_d_clearance=0.5, 55 pulley_small_d_clearance=0.5,
56 lever_v_clearance=.7, // vertical clearance for the lever 56 lever_v_clearance=.7, // vertical clearance for the lever
57 spring_d_clearance=1, 57 spring_d_clearance=1,
58 protrusion_tolerance_h=.5, // horizontal tolerance for the motor protrusion 58 protrusion_tolerance_h=.5, // horizontal tolerance for the motor protrusion
59 protrusion_tolerance_v=.5, // vertical tolerance for the motor protrusion 59 protrusion_tolerance_v=.5, // vertical tolerance for the motor protrusion
60 mount_screw_d_tolerance=.4, 60 mount_screw_d_tolerance=.4,
61 idler_v_tolerance=.5, 61 idler_v_tolerance=.5,
62 knob_bore_d_tolerance=.6, 62 knob_bore_d_tolerance=.6,
63 st_nut_h_tolerance=.2, 63 st_nut_h_tolerance=.2,
64 st_nut_d_tolerance=.2,/* TODO: make it st_nut_w_tolerance */ 64 st_nut_d_tolerance=.2,/* TODO: make it st_nut_w_tolerance */
65 st_screw_d_tolerance=.5, 65 st_screw_d_tolerance=.5,
66 st_split_w_tolerance = .3, 66 st_split_w_tolerance = .3,
67 67
68 min_z_shell = 4*layer_height, // the very minimal shell thickness along z-axis. 68 min_z_shell = 4*layer_height, // the very minimal shell thickness along z-axis.
69 min_xy_shell = 2*extrusion_width, 69 min_xy_shell = 2*extrusion_width,
70 70
71 what="lever", // lever|body|knob|springpad|* 71 what="lever", // lever|body|knob|springpad|*
72 left=false, 72 left=false,
73 vitamins = true, 73 vitamins = true,
74 supports = false, bridges = true, 74 supports = false, bridges = true,
75 tensioner = true, 75 tensioner = true,
76 debug = false 76 debug = false
77) { 77) {
78 fnd = 2*PI; fnr = 2*fnd; 78 fnd = 2*PI; fnr = 2*fnd;
79 79
80 idler_filament_offset = filament_path_d/2; // -filament_offset; 80 idler_filament_offset = filament_path_d/2; // -filament_offset;
81 lever_shell = mount_screwhead_h+0.5; 81 lever_shell = mount_screwhead_h+0.5;
82 lever_thickness=max(spring_d+spring_d_clearance+layer_height*8,idler_h+idler_v_tolerance+2*lever_shell); 82 lever_thickness=max(spring_d+spring_d_clearance+layer_height*8,idler_h+idler_v_tolerance+2*lever_shell);
83 lsd = idler_d-idler_clearance*2; 83 lsd = idler_d-idler_clearance*2;
84 longwing=gearbox_d/2+spring_d/2+lsd/2; 84 longwing=(mount_d+mount_screw_d+mount_screw_d_tolerance+spring_d+spring_d_clearance)/2+extrusion_width;
85 shortwing = let(a=mount_d/2,c=(pulley_d+idler_d)/2/sqrt(2)) 85 shortwing = let(a=mount_d/2,c=(pulley_d+idler_d)/2/sqrt(2))
86 sqrt(c*c+pow(a-c,2)); 86 sqrt(c*c+pow(a-c,2));
87 longwing_travel = idler_travel*longwing/shortwing; 87 longwing_travel = idler_travel*longwing/shortwing;
88 h_ = (pulley_d+idler_d)/(2*sqrt(2)); 88 h_ = (pulley_d+idler_d)/(2*sqrt(2));
89 ri = sqrt( pow(h_,2) + pow(mount_d/2-h_,2) ); 89 ri = sqrt( pow(h_,2) + pow(mount_d/2-h_,2) );
90 spring_dl = idler_travel*longwing/ri; 90 spring_dl = idler_travel*longwing/ri;
91 // finger and spring support 91 // finger and spring support
92 fsw = gearbox_d-(gearbox_d-mount_d)/2-max(spring_lc,longwing_travel+(gearbox_d-mount_d)/2); 92 fsw = gearbox_d-(gearbox_d-mount_d)/2-max(spring_lc,longwing_travel+(gearbox_d-mount_d)/2);
93 93
94 mount_min_depth = mounthole_min_depth ? mounthole_min_depth : mounthole_depth-1; 94 mount_min_depth = mounthole_min_depth ? mounthole_min_depth : mounthole_depth-1;
95 mount_max_depth = mounthole_max_depth ? mounthole_max_depth : mounthole_depth+1; 95 mount_max_depth = mounthole_max_depth ? mounthole_max_depth : mounthole_depth+1;
96 filament_elevation=protrusion_h+pulley_elevation+teeth_elevation; 96 filament_elevation=protrusion_h+pulley_elevation+teeth_elevation;
97 ls_z = filament_elevation; // leverspace mid-z 97 ls_z = filament_elevation; // leverspace mid-z
98 ls_h = lever_thickness+lever_v_clearance; // leverspace height 98 ls_h = lever_thickness+lever_v_clearance; // leverspace height
99 mount_depth = mount_screw_l - (ls_z+ls_h/2+min_z_shell); 99 mount_depth = mount_screw_l - (ls_z+ls_h/2+min_z_shell);
100 body_h = max(protrusion_h+bore_l,mount_screw_l-mount_depth+mount_screwhead_h+min_z_shell,ls_z*2); 100 body_h = max(protrusion_h+bore_l,mount_screw_l-mount_depth+mount_screwhead_h+min_z_shell,ls_z*2);
101 echo("mount depth",mount_depth); 101 echo("mount depth",mount_depth);
102 102
103 module teardrop(r,d,h,center=false,angle=45) { 103 module teardrop(r,d,h,center=false,angle=45) {
104 dd = d ? d : (2*r); 104 dd = d ? d : (2*r);
105 $fn = dd*fnd; 105 $fn = dd*fnd;
106 cylinder(d=dd,h=h,center=center); 106 cylinder(d=dd,h=h,center=center);
107 if(angle>0) translate([0,0,center?-h/2:0]) 107 if(angle>0) translate([0,0,center?-h/2:0])
108 rotate([0,0,angle]) 108 rotate([0,0,angle])
109 cube(size=[d/2,d/2,h]); 109 cube(size=[d/2,d/2,h]);
110 } 110 }
111 111
112 module mirrorleft() { 112 module mirrorleft() {
113 mirror([left?0:1,0,0]) children(); 113 mirror([left?0:1,0,0]) children();
114 } 114 }
115 module place_idler() { 115 module place_idler() {
116 rotate([0,0,45]) 116 rotate([0,0,45])
117 translate([(pulley_d+idler_d)/2,0,0]) 117 translate([(pulley_d+idler_d)/2,0,0])
118 children(); 118 children();
119 } 119 }
120 module finger_indent(d=lever_thickness,depth/*=1*/,r/*=15*/) { 120 module finger_indent(d=lever_thickness,depth/*=1*/,r/*=15*/) {
121 if(depth) { 121 if(depth) {
122 hh = (-4*pow(depth,2)+pow(d,2))/(8*depth); 122 hh = (-4*pow(depth,2)+pow(d,2))/(8*depth);
123 rr = depth+hh; 123 rr = depth+hh;
124 translate([0,0,hh]) sphere(r=rr,$fn=fnr*rr); 124 translate([0,0,hh]) sphere(r=rr,$fn=fnr*rr);
125 }else if(r) { 125 }else if(r) {
126 hh=sqrt(pow(r,2)-pow(d,2)/4); 126 hh=sqrt(pow(r,2)-pow(d,2)/4);
127 translate([0,0,hh]) sphere(r=r,$fn=fnr*r); 127 translate([0,0,hh]) sphere(r=r,$fn=fnr*r);
128 } 128 }
129 } 129 }
130 130
131 % if(vitamins) mirrorleft() { 131 % if(vitamins) mirrorleft() {
132 translate([0,0,-epsilon]) mirror([0,0,1]) cylinder(d=gearbox_d,h=1,$fn=60); 132 translate([0,0,-epsilon]) mirror([0,0,1]) cylinder(d=gearbox_d,h=1,$fn=60);
133 for(zr=[0:90:359]) rotate([0,0,zr]) translate([mount_d/2,0,0]) 133 for(zr=[0:90:359]) rotate([0,0,zr]) translate([mount_d/2,0,0])
134 cylinder(d=mount_screw_d,h=20,$fn=30); 134 cylinder(d=mount_screw_d,h=20,$fn=30);
135 translate([0,0,-epsilon]) cylinder(d=protrusion_d,h=protrusion_h,$fn=30); 135 translate([0,0,-epsilon]) cylinder(d=protrusion_d,h=protrusion_h,$fn=30);
136 translate([0,0,protrusion_h]) { 136 translate([0,0,protrusion_h]) {
137 difference() { 137 difference() {
138 cylinder(d=bore_d,h=bore_l,$fn=30); 138 cylinder(d=bore_d,h=bore_l,$fn=30);
139 translate([-bore_d/2-1,bore_dd-bore_d/2,-1]) 139 translate([-bore_d/2-1,bore_dd-bore_d/2,-1])
140 cube([bore_d+2,bore_d/2,bore_l+2]); 140 cube([bore_d+2,bore_d/2,bore_l+2]);
141 } 141 }
142 translate([0,0,pulley_elevation]) { 142 translate([0,0,pulley_elevation]) {
143 cylinder(d=pulley_d,h=pulley_h,$fn=30); 143 cylinder(d=pulley_d,h=pulley_h,$fn=30);
144 translate([0,0,teeth_elevation]) { 144 translate([0,0,teeth_elevation]) {
145 place_idler() { 145 place_idler() {
146 cylinder(d=idler_d,h=idler_h,center=true,$fn=30); 146 cylinder(d=idler_d,h=idler_h,center=true,$fn=30);
147 cylinder(d=idler_screw_d,h=lever_thickness+2,center=true,$fn=30); 147 cylinder(d=idler_screw_d,h=lever_thickness+2,center=true,$fn=30);
148 }//place idler 148 }//place idler
149 // filament path 149 // filament path
150 rotate([0,0,45]) { 150 rotate([0,0,45]) {
151 translate([pulley_d/2-idler_filament_offset,0,0]) rotate([90,0,0]) { 151 translate([pulley_d/2-idler_filament_offset,0,0]) rotate([90,0,0]) {
152 cylinder(d=filament_d,h=gearbox_d,center=false,$fn=15); 152 cylinder(d=filament_d,h=gearbox_d,center=false,$fn=15);
153 }//rotate translate 153 }//rotate translate
154 translate([pulley_d/2+filament_offset,0,0]) rotate([-90,0,0]) { 154 translate([pulley_d/2+filament_offset,0,0]) rotate([-90,0,0]) {
155 cylinder(d=filament_d,h=gearbox_d,center=false,$fn=15); 155 cylinder(d=filament_d,h=gearbox_d,center=false,$fn=15);
156 translate([0,0,mount_d/sqrt(2)/2+mount_screw_d]) 156 translate([0,0,mount_d/sqrt(2)/2+mount_screw_d])
157 pushfit(pf); 157 pushfit(pf);
158 }//rotate translate 158 }//rotate translate
159 }//rotate 159 }//rotate
160 }//translate teeth 160 }//translate teeth
161 }//translate pulley 161 }//translate pulley
162 }//translate protrusion 162 }//translate protrusion
163 }//vitamins 163 }//vitamins
164 164
165 module lever() { 165 module lever() {
166 translate([0,0,protrusion_h+pulley_elevation+teeth_elevation]) { 166 translate([0,0,protrusion_h+pulley_elevation+teeth_elevation]) {
167 difference() { 167 difference() {
168 union() { 168 union() {
169 hull() { 169 hull() {
170 place_idler() 170 place_idler()
171 cylinder(d=lsd,h=lever_thickness,center=true,$fn=60); 171 cylinder(d=lsd,h=lever_thickness,center=true,$fn=60);
172 translate([mount_d/2,0,0]) 172 translate([mount_d/2,0,0])
173 cylinder(d=lsd,h=lever_thickness,center=true,$fn=60); 173 cylinder(d=lsd,h=lever_thickness,center=true,$fn=60);
174 }//hull 174 }//hull
175 hull() { 175 hull() {
176 translate([mount_d/2,0,0]) 176 translate([mount_d/2,0,0])
177 cylinder(d=lsd,h=lever_thickness,center=true,$fn=60); 177 cylinder(d=lsd,h=lever_thickness,center=true,$fn=60);
178 translate([mount_d/2,-longwing,0]) rotate([0,90,0]) 178 translate([mount_d/2,-longwing,0]) rotate([0,90,0])
179 cylinder(d=lever_thickness,h=lsd,center=true,$fn=60); 179 cylinder(d=lever_thickness,h=lsd,center=true,$fn=60);
180 }//hull 180 }//hull
181 }//union 181 }//union
182 182
183 // filament path 183 // filament path
184 place_idler() 184 place_idler()
185 translate([-idler_d/2-idler_filament_offset,0,0]) 185 translate([-idler_d/2-idler_filament_offset,0,0])
186 rotate([90,0,0]) { 186 rotate([90,0,0]) {
187 mirror([0,1,0]) 187 mirror([0,1,0])
188 teardrop(d=filament_path_d,h=3*gearbox_d,center=true); 188 teardrop(d=filament_path_d,h=3*gearbox_d,center=true);
189 translate([0,0, 189 translate([0,0,
190 sqrt(2)*(mount_d-pulley_d+lsd)/2 190 sqrt(2)*(mount_d-pulley_d+lsd)/2
191 ]) { 191 ]) {
192 cylinder(d1=filament_path_d,d2=2*filament_path_d, 192 cylinder(d1=filament_path_d,d2=2*filament_path_d,
193 h=filament_path_d,$fn=2*filament_path_d*fnd); 193 h=filament_path_d,$fn=2*filament_path_d*fnd);
194 translate([0,0,filament_path_d-epsilon]) 194 translate([0,0,filament_path_d-epsilon])
195 cylinder(d=2*filament_path_d,h=lsd,$fn=2*filament_path_d*fnd); 195 cylinder(d=2*filament_path_d,h=lsd,$fn=2*filament_path_d*fnd);
196 }//translate 196 }//translate
197 }//rotate translate place_idler 197 }//rotate translate place_idler
198 198
199 // idler space and mounting hole 199 // idler space and mounting hole
200 place_idler() { 200 place_idler() {
201 difference() { 201 difference() {
202 cylinder(d=idler_d+idler_clearance*2,h=idler_h+idler_v_tolerance,center=true,$fn=60); 202 cylinder(d=idler_d+idler_clearance*2,h=idler_h+idler_v_tolerance,center=true,$fn=60);
203 if(supports) for(y=[-lsd/2+extrusion_width:(lsd-2*extrusion_width)/3:lsd/2-extrusion_width]) 203 if(supports) for(y=[-lsd/2+extrusion_width:(lsd-2*extrusion_width)/3:lsd/2-extrusion_width])
204 translate([-lsd/2-1,y-extrusion_width/2,-idler_h/2-idler_v_tolerance/2-1]) 204 translate([-lsd/2-1,y-extrusion_width/2,-idler_h/2-idler_v_tolerance/2-1])
205 cube(size=[lsd+2,extrusion_width,idler_h+idler_v_tolerance+2]); 205 cube(size=[lsd+2,extrusion_width,idler_h+idler_v_tolerance+2]);
206 } 206 }
207 cylinder(d=idler_screw_d,h=lever_thickness+2,center=true,$fn=30); 207 cylinder(d=idler_screw_d,h=lever_thickness+2,center=true,$fn=30);
208 translate([0,0,lever_thickness/2-idler_screwhead_h]) 208 translate([0,0,lever_thickness/2-idler_screwhead_h])
209 cylinder(d=idler_screwhead_d,h=idler_screwhead_h+1,$fn=fnd*idler_screwhead_d); 209 cylinder(d=idler_screwhead_d,h=idler_screwhead_h+1,$fn=fnd*idler_screwhead_d);
210 } 210 }
211 // mounting screw hole 211 // mounting screw hole
212 translate([mount_d/2,0,0]) 212 translate([mount_d/2,0,0])
213 cylinder(d=mount_screw_d+mount_screw_d_tolerance,h=lever_thickness+2,center=true,$fn=fnd*mount_screw_d); 213 cylinder(d=mount_screw_d+mount_screw_d_tolerance,h=lever_thickness+2,center=true,$fn=fnd*mount_screw_d);
214 214
215 // lever end 215 // lever end
216 translate([mount_d/2,0,0]) rotate([0,90,0]) { 216 translate([mount_d/2,0,0]) rotate([0,90,0]) {
217 translate([0,-longwing,lsd/2]) finger_indent(d=lever_thickness-1,r=15); 217 translate([0,-longwing,lsd/2]) finger_indent(d=lever_thickness-1,r=15);
218 translate([0,-longwing,0]) 218 translate([0,-longwing,0])
219 mirror([0,0,1]) 219 mirror([0,0,1])
220 difference() { 220 difference() {
221 cylinder(d=spring_d+spring_d_clearance,h=lsd,$fn=fnd*(spring_d+spring_d_clearance)); 221 cylinder(d=spring_d+spring_d_clearance,h=lsd,$fn=fnd*(spring_d+spring_d_clearance));
222 sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4); 222 sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4);
223 } 223 }
224 }//rotate-translate 224 }//rotate-translate
225 }//difference 225 }//difference
226 // bridging patch 226 // bridging patch
227 if(bridges) place_idler() 227 if(bridges) place_idler()
228 translate([0,0,lever_thickness/2-mount_screwhead_h]) 228 translate([0,0,lever_thickness/2-mount_screwhead_h])
229 mirror([0,0,1]) 229 mirror([0,0,1])
230 cylinder(d=mount_screwhead_d,h=layer_height); 230 cylinder(d=mount_screwhead_d,h=layer_height);
231 }//translate 231 }//translate
232 }//lever module 232 }//lever module
233 233
234 module body() { 234 module body() {
235 difference() { 235 difference() {
236 union() { 236 union() {
237 cylinder(d=gearbox_d,h=body_h,$fn=fnd*gearbox_d); 237 cylinder(d=gearbox_d,h=body_h,$fn=fnd*gearbox_d);
238 translate([-gearbox_d/2,0,0]) difference() { 238 // spring tensioner part
239 union() { 239 translate([-gearbox_d/2,0,0]) hull() {
240 hull() { 240 translate([0,-longwing,ls_z])
241 translate([0,-longwing,ls_z]) 241 rotate([0,90,0])
242 rotate([0,90,0]) 242 cylinder(d=lever_thickness,h=fsw,$fn=fnd*lever_thickness);
243 cylinder(d=lever_thickness,h=fsw,$fn=fnd*lever_thickness); 243 hh=body_h-ls_z;
244 hh=body_h-ls_z; 244 translate([0,0,ls_z])
245 translate([0,0,ls_z]) 245 mirror([0,1,0]) cube(size=[fsw,longwing+(st_thinshell+st_split_w_tolerance)/2+st_thickshell,body_h-ls_z]);
246 mirror([0,1,0]) cube(size=[fsw,longwing+(st_thinshell+st_split_w_tolerance)/2+st_thickshell,body_h-ls_z]); 246 hhh=ls_z;
247 hhh=ls_z; 247 translate([0,0,0])
248 translate([0,0,0]) 248 mirror([0,1,0]) cube(size=[fsw,longwing-hhh+lever_thickness/sqrt(2),hhh+lever_thickness/2]);
249 mirror([0,1,0]) cube(size=[fsw,longwing-hhh+lever_thickness/sqrt(2),hhh+lever_thickness/2]); 249 }//hull translate
250 }
251 }
252 translate([0,-longwing,ls_z]) rotate([0,-90,0]) {
253 if(!tensioner) finger_indent(d=lever_thickness-1,r=15); else {
254 mirror([0,0,1]) {
255 translate([0,0,st_thickshell])
256 hull() for(o=[0,spring_d]) translate([0,-o,0])
257 rotate([0,0,30])
258 cylinder(d=st_nut_d+st_nut_d_tolerance,h=st_nut_h+st_nut_h_tolerance,$fn=6);
259 translate([0,0,-1]) cylinder(d=st_screw_d+st_screw_d_tolerance,h=fsw+2,$fn=fnd*(st_screw_d+st_screw_d_tolerance));
260 bigd = spring_d+spring_d_clearance;
261 hf = (bigd-st_screw_d-st_screw_d_tolerance)/2;
262 translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell-epsilon]) {
263 cylinder(d1=st_screw_d+st_screw_d_tolerance,d2=bigd,
264 h=hf+epsilon, $fn=fnd*bigd);
265 translate([0,-(st_thinshell+st_split_w_tolerance)/2,0])
266 cube(size=[body_h-ls_z+1,st_thinshell+st_split_w_tolerance,fsw+1]);
267 }
268 translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+hf-epsilon])
269 cylinder(d=bigd,h=fsw+1,$fn=fnd*bigd);
270 }
271 }
272 }
273 } // translate
274 250
275 // pushfit bracket 251 // pushfit bracket
276 translate([0,0,filament_elevation]) 252 translate([0,0,filament_elevation])
277 rotate([0,0,45]) translate([pulley_d/2+filament_offset,0,0]) 253 rotate([0,0,45]) translate([pulley_d/2+filament_offset,0,0])
278 rotate([-90,0,0]) 254 rotate([-90,0,0])
279 translate([0,0,mount_d/sqrt(2)/2+mount_screw_d-gearbox_d/2/*TODO:*/]) { 255 translate([0,0,mount_d/sqrt(2)/2+mount_screw_d-gearbox_d/2/*TODO:*/]) {
280 pfbl = pf_h(pf)+gearbox_d/2; //TODO: 256 pfbl = pf_h(pf)+gearbox_d/2; //TODO:
281 if(pf_smooth) { 257 if(pf_smooth) {
282 pfbd = pf_d(pf)+2*pf_shell; 258 pfbd = pf_d(pf)+2*pf_shell;
283 hull() { 259 hull() {
284 cylinder(d=pfbd,h=pfbl,$fn=pfbd*fnd); 260 cylinder(d=pfbd,h=pfbl,$fn=pfbd*fnd);
285 translate([-epsilon/2,0,0]) { 261 translate([-epsilon/2,0,0]) {
286 cube(size=[epsilon,filament_elevation,pfbl-filament_elevation+pfbd/2]); 262 cube(size=[epsilon,filament_elevation,pfbl-filament_elevation+pfbd/2]);
287 mirror([0,1,0]) 263 mirror([0,1,0])
288 cube(size=[epsilon,body_h-filament_elevation,pfbl-body_h+filament_elevation+pfbd/2]); 264 cube(size=[epsilon,body_h-filament_elevation,pfbl-body_h+filament_elevation+pfbd/2]);
289 }//translate 265 }//translate
290 }//hull 266 }//hull
291 }else{ 267 }else{
292 pfb2a = pf_d(pf)+2*pf_shell; pfba = pfb2a/2; 268 pfb2a = pf_d(pf)+2*pf_shell; pfba = pfb2a/2;
293 pfbd = pfb2a/cos(30); 269 pfbd = pfb2a/cos(30);
294 pfbs = pfb2a*tan(30); 270 pfbs = pfb2a*tan(30);
295 cylinder(d=pfbd,h=pfbl,$fn=6); 271 cylinder(d=pfbd,h=pfbl,$fn=6);
296 translate([-pfbs/2,0,0]) { 272 translate([-pfbs/2,0,0]) {
297 hull() { 273 hull() {
298 translate([0,-pfba,0]) cube(size=[pfbs,pfb2a,pfbl]); 274 translate([0,-pfba,0]) cube(size=[pfbs,pfb2a,pfbl]);
299 cube(size=[pfbs,filament_elevation,pfbl-filament_elevation+pfba]); 275 cube(size=[pfbs,filament_elevation,pfbl-filament_elevation+pfba]);
300 mirror([0,1,0]) 276 mirror([0,1,0])
301 cube(size=[pfbs,body_h-filament_elevation,pfbl-body_h+filament_elevation+pfba]); 277 cube(size=[pfbs,body_h-filament_elevation,pfbl-body_h+filament_elevation+pfba]);
302 }//hull 278 }//hull
303 }//translate*/ 279 }//translate*/
304 }//if(pf_smooth) 280 }//if(pf_smooth)
305 }//translate rotate translate rotate translate 281 }//translate rotate translate rotate translate
306 }//union (first child of difference) 282 }//union (first child of difference)
307 283
308 // protrusion 284 // protrusion
309 translate([0,0,-1]) 285 translate([0,0,-1])
310 cylinder(d=protrusion_d+protrusion_tolerance_h,h=protrusion_h+protrusion_tolerance_v+1,$fn=fnd*(protrusion_d+protrusion_tolerance_h)); 286 cylinder(d=protrusion_d+protrusion_tolerance_h,h=protrusion_h+protrusion_tolerance_v+1,$fn=fnd*(protrusion_d+protrusion_tolerance_h));
311 // mount screw holes 287 // mount screw holes
312 for(zr=[0:90:359]) rotate([0,0,zr]) translate([mount_d/2,0,0]) { 288 for(zr=[0:90:359]) rotate([0,0,zr]) translate([mount_d/2,0,0]) {
313 translate([0,0,mount_screw_l-mount_depth-(bridges?layer_height:-epsilon)]) 289 translate([0,0,mount_screw_l-mount_depth-(bridges?layer_height:-epsilon)])
314 mirror([0,0,1]) 290 mirror([0,0,1])
315 cylinder(d=mount_screw_d+mount_screw_d_tolerance, 291 cylinder(d=mount_screw_d+mount_screw_d_tolerance,
316 h=mount_screw_l-mount_depth+1, 292 h=mount_screw_l-mount_depth+1,
317 $fn=fnd*(mount_screw_d+mount_screw_d_tolerance)); 293 $fn=fnd*(mount_screw_d+mount_screw_d_tolerance));
318 translate([0,0,mount_screw_l-mount_depth]) 294 translate([0,0,mount_screw_l-mount_depth])
319 cylinder(d=mount_screwhead_d,h=body_h+1,$fn=fnd*mount_screwhead_d); 295 cylinder(d=mount_screwhead_d,h=body_h+1,$fn=fnd*mount_screwhead_d);
320 }//for 296 }//for
321 // pushfit 297 // pushfit
322 pf_offset = mount_d/sqrt(2)/2+mount_screw_d; 298 pf_offset = mount_d/sqrt(2)/2+mount_screw_d;
323 translate([0,0,filament_elevation]) 299 translate([0,0,filament_elevation])
324 rotate([0,0,45]) translate([pulley_d/2+filament_offset,0,0]) 300 rotate([0,0,45]) translate([pulley_d/2+filament_offset,0,0])
325 rotate([-90,0,0]) 301 rotate([-90,0,0])
326 translate([0,0,pf_offset]) 302 translate([0,0,pf_offset])
327 rotate([0,0,180]) { 303 rotate([0,0,180]) {
328 pushfit(pf); 304 pushfit(pf);
329 mirror([0,0,1]) { 305 mirror([0,0,1]) {
330 fh = 1.5* (filament_guide_d-filament_path_d)/2; 306 fh = 1.5* (filament_guide_d-filament_path_d)/2;
331 fo = pf_offset -filament_path_d /*(idler_d+idler_clearance)/2*/-fh; 307 fo = pf_offset -filament_path_d /*(idler_d+idler_clearance)/2*/-fh;
332 translate([0,0,-1]) teardrop(d=filament_guide_d,h=fo/2,angle=225); 308 translate([0,0,-1]) teardrop(d=filament_guide_d,h=fo/2,angle=225);
333 translate([0,0,-1]) teardrop(d=filament_path_d,h=gearbox_d/2+1,angle=-225); 309 translate([0,0,-1]) teardrop(d=filament_path_d,h=gearbox_d/2+1,angle=-225);
334 translate([0,0,fo+epsilon]) 310 translate([0,0,fo+epsilon])
335 cylinder(d1=filament_path_d,d2=filament_guide_d,h=fh,$fn=fnd*filament_guide_d); 311 cylinder(d1=filament_path_d,d2=filament_guide_d,h=fh,$fn=fnd*filament_guide_d);
336 }//mirror 312 }//mirror
337 }//rotate translate rotate translate rotate translate 313 }//rotate translate rotate translate rotate translate
338 // pulley 314 // pulley
339 cylinder(d=pulley_d+pulley_small_d_clearance,h=body_h+1,$fn=fnd*(pulley_d+pulley_d_clearance)); 315 cylinder(d=pulley_d+pulley_small_d_clearance,h=body_h+1,$fn=fnd*(pulley_d+pulley_d_clearance));
340 cylinder(d=pulley_d+pulley_d_clearance,ls_z-max(idler_h,filament_guide_d)/2,$fn=fnd*(pulley_d+pulley_d_clearance)); 316 cylinder(d=pulley_d+pulley_d_clearance,ls_z-max(idler_h,filament_guide_d)/2,$fn=fnd*(pulley_d+pulley_d_clearance));
341 317
342 translate([0,0,ls_z-ls_h/2]) { 318 translate([0,0,ls_z-ls_h/2]) {
343 // idler travel 319 // idler travel
344 translate([mount_d/2,0,0]) 320 translate([mount_d/2,0,0])
345 rotate([0,0,45]) 321 rotate([0,0,45])
346 rotate_extrude(angle=90,$fn=fnr*(shortwing+(idler_d+idler_clearance)/2)) 322 rotate_extrude(angle=90,$fn=fnr*(shortwing+(idler_d+idler_clearance)/2))
347 square([shortwing+(idler_d+idler_clearance)/2,ls_h]); 323 square([shortwing+(idler_d+idler_clearance)/2,ls_h]);
348 // idler itself 324 // idler itself
349 place_idler() 325 place_idler()
350 cylinder(d=idler_d+idler_clearance,h=ls_h,$fn=fnd*(idler_d+idler_clearance)); 326 cylinder(d=idler_d+idler_clearance,h=ls_h,$fn=fnd*(idler_d+idler_clearance));
351 // lever space 327 // lever space
352 echo(atan(1-2*fsw/gearbox_d)); 328 echo(atan(1-2*fsw/gearbox_d));
353 rotate([0,0,45]) 329 rotate([0,0,45])
354 rotate_extrude(angle=-135+max(atan(2*fsw/gearbox_d-1),atan(gearbox_d/mount_d-1))) 330 rotate_extrude(angle=-135+max(atan(2*fsw/gearbox_d-1),atan(gearbox_d/mount_d-1)))
355 square([gearbox_d/2+1,ls_h]); 331 square([gearbox_d/2+1,ls_h]);
356 } 332 }
357 333
358 // back side cutout 334 // back side cutout
359 // XXX: this is somewhat ugly and potentially bugged, 335 // XXX: this is somewhat ugly and potentially bugged,
360 // but I want to sleep. 336 // but I want to sleep.
361 a0_ = atan( 337 a0_ = atan(
362 (mount_d/sqrt(2)/2+mount_screw_d+pf_h(pf)+gearbox_d/2) 338 (mount_d/sqrt(2)/2+mount_screw_d+pf_h(pf)+gearbox_d/2)
363 / 339 /
364 ( 340 (
365 pulley_d/2+filament_offset- 341 pulley_d/2+filament_offset-
366 (pf_d(pf)+2*pf_shell)/2/cos(30) 342 (pf_d(pf)+2*pf_shell)/2/cos(30)
367 ) 343 )
368 ); 344 );
369 a0 = -135 + ( (a0_>0) ? a0_ : 180+a0_ ); 345 a0 = -135 + ( (a0_>0) ? a0_ : 180+a0_ );
370 a1 = atan((longwing-lever_thickness/2)/(gearbox_d/2)); 346 a1 = atan((longwing-lever_thickness/2)/(gearbox_d/2));
371 translate([0,0,ls_z]) difference() { 347 translate([0,0,ls_z]) difference() {
372 rotate([0,0,-180+a0]) 348 rotate([0,0,-180+a0])
373 rotate_extrude(angle=a1-a0) 349 rotate_extrude(angle=a1-a0)
374 translate([0,-ls_h/2]) 350 translate([0,-ls_h/2])
375 square([sqrt(pow(gearbox_d/2,2)+pow(longwing-lever_thickness/2,2))+1, 351 square([sqrt(pow(gearbox_d/2,2)+pow(longwing-lever_thickness/2,2))+1,
376 ls_h]); 352 ls_h]);
377 translate([-mount_d/2,0,0]) 353 translate([-mount_d/2,0,0])
378 cylinder(d=gearbox_d-mount_d,h=ls_h+2,center=true,$fn=fnd*(gearbox_d-mount_d)); 354 cylinder(d=gearbox_d-mount_d,h=ls_h+2,center=true,$fn=fnd*(gearbox_d-mount_d));
379 }//difference translate 355 }//difference translate
380 356
381 //translate([-mount_d/2,-longwing,filament_elevation]) 357 //translate([-mount_d/2,-longwing,filament_elevation])
382 if(!tensioner) /* XXX: this seems to be bullshit, but it's so old, that it's historical bullshit */ 358 if(!tensioner) /* XXX: this seems to be bullshit, but it's so old, that it's historical bullshit */
383 translate([mount_d/2,-longwing,filament_elevation]) 359 translate([mount_d/2,-longwing,filament_elevation])
384 rotate([0,-90,0]) difference() { 360 rotate([0,-90,0]) difference() {
385 cylinder(d=spring_d+spring_d_clearance,h=spring_lc+spring_dl,$fn=fnd*(spring_d+spring_d_clearance)); 361 cylinder(d=spring_d+spring_d_clearance,h=spring_lc+spring_dl,$fn=fnd*(spring_d+spring_d_clearance));
386 translate([0,0,spring_lc+spring_dl]) sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4); 362 translate([0,0,spring_lc+spring_dl]) sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4);
387 } 363 }
388 364
365 // spring tensioner
366 translate([-gearbox_d/2,-longwing,ls_z]) rotate([0,-90,0]) {
367 if(!tensioner) finger_indent(d=lever_thickness-1,r=15); else {
368 mirror([0,0,1]) {
369 translate([0,0,st_thickshell])
370 hull() for(o=[0,spring_d]) translate([0,-o,0])
371 rotate([0,0,30])
372 cylinder(d=st_nut_d+st_nut_d_tolerance,h=st_nut_h+st_nut_h_tolerance,$fn=6);
373 translate([0,0,-1]) cylinder(d=st_screw_d+st_screw_d_tolerance,h=fsw+2,$fn=fnd*(st_screw_d+st_screw_d_tolerance));
374 bigd = spring_d+spring_d_clearance;
375 hf = (bigd-st_screw_d-st_screw_d_tolerance)/2;
376 translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell-epsilon]) {
377 cylinder(d1=st_screw_d+st_screw_d_tolerance,d2=bigd,
378 h=hf+epsilon, $fn=fnd*bigd);
379 translate([0,-(st_thinshell+st_split_w_tolerance)/2,0])
380 cube(size=[body_h-ls_z+1,st_thinshell+st_split_w_tolerance,fsw+1]);
381 }
382 translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+hf-epsilon])
383 cylinder(d=bigd,h=fsw+1,$fn=fnd*bigd);
384 }
385 }
386 }
387
389 }//difference 388 }//difference
390 389
391 if(supports) intersection() { 390 if(supports) intersection() {
392 difference() { 391 difference() {
393 translate([0,0,ls_z-ls_h/2-epsilon]) 392 translate([0,0,ls_z-ls_h/2-epsilon])
394 cylinder(d=gearbox_d,h=ls_h+2*epsilon,$fn=fnd*gearbox_d); 393 cylinder(d=gearbox_d,h=ls_h+2*epsilon,$fn=fnd*gearbox_d);
395 cylinder(d=pulley_d+pulley_d_clearance,h=body_h+1,$fn=fnd*(pulley_d+pulley_d_clearance)); 394 cylinder(d=pulley_d+pulley_d_clearance,h=body_h+1,$fn=fnd*(pulley_d+pulley_d_clearance));
396 } 395 }
397 // supports 396 // supports
398 // TODO: hardcoded stuff below… 397 // TODO: hardcoded stuff below…
399 if(false) { // parallel 398 if(false) { // parallel
400 for(y=[-gearbox_d:4:gearbox_d]) 399 for(y=[-gearbox_d:4:gearbox_d])
401 translate([0,y-extrusion_width/2,0]) 400 translate([0,y-extrusion_width/2,0])
402 cube(size=[gearbox_d,extrusion_width,body_h]); 401 cube(size=[gearbox_d,extrusion_width,body_h]);
403 }else{ // radial 402 }else{ // radial
404 for(zr=[-65:(65+50)/7:50]) 403 for(zr=[-65:(65+50)/7:50])
405 rotate([0,0,zr]) translate([0,-extrusion_width/2,0]) 404 rotate([0,0,zr]) translate([0,-extrusion_width/2,0])
406 cube(size=[gearbox_d,extrusion_width,body_h]); 405 cube(size=[gearbox_d,extrusion_width,body_h]);
407 } 406 }
408 } 407 }
409 408
410 }//body module 409 }//body module
411 410
412 module springpad() { 411 module springpad() {
413 smalld=st_screw_d+st_screw_d_tolerance+2*extrusion_width; 412 smalld=st_screw_d+st_screw_d_tolerance+2*extrusion_width;
414 bigd = spring_d+spring_d_clearance/2; 413 bigd = spring_d+spring_d_clearance/2;
415 hf = (bigd-smalld)/2; 414 hf = (bigd-smalld)/2;
416 h = hf*3.5; 415 h = hf*3.5;
417 translate([-gearbox_d/2+st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+1,-longwing,filament_elevation]) 416 translate([-gearbox_d/2+st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+1,-longwing,filament_elevation])
418 rotate([0,90,0]) difference() { 417 rotate([0,90,0]) difference() {
419 union() { 418 union() {
420 cylinder(d1=smalld,d2=bigd,h=hf,$fn=fnd*bigd); 419 cylinder(d1=smalld,d2=bigd,h=hf,$fn=fnd*bigd);
421 translate([0,0,hf-epsilon]) 420 translate([0,0,hf-epsilon])
422 cylinder(d=bigd,h=h-hf,$fn=fnd*bigd); 421 cylinder(d=bigd,h=h-hf,$fn=fnd*bigd);
423 translate([0,0,h]) 422 translate([0,0,h])
424 sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4); 423 sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4);
425 l = body_h-ls_z; 424 l = body_h-ls_z;
426 w = st_thinshell; 425 w = st_thinshell;
427 hull() translate([0,-st_thinshell/2,0]) mirror([1,0,0]) { 426 hull() translate([0,-st_thinshell/2,0]) mirror([1,0,0]) {
428 translate([0,0,w]) 427 translate([0,0,w])
429 cube(size=[l,st_thinshell,w]); 428 cube(size=[l,st_thinshell,w]);
430 cube(size=[l-w,st_thinshell,2*w]); 429 cube(size=[l-w,st_thinshell,2*w]);
431 } 430 }
432 } 431 }
433 translate([0,0,-epsilon]) 432 translate([0,0,-epsilon])
434 cylinder(d=st_screw_d+st_screw_d_tolerance,h=2*hf+epsilon,$fn=fnd*(st_screw_d+st_screw_d_tolerance)); 433 cylinder(d=st_screw_d+st_screw_d_tolerance,h=2*hf+epsilon,$fn=fnd*(st_screw_d+st_screw_d_tolerance));
435 } 434 }
436 } 435 }
437 436
438 module knob() { 437 module knob() {
439 ch = knob_indent_d/2; 438 ch = knob_indent_d/2;
440 translate([0,0,body_h+epsilon]) { 439 translate([0,0,body_h+epsilon]) {
441 mirror([0,0,1]) translate([0,0,-epsilon]) { 440 mirror([0,0,1]) translate([0,0,-epsilon]) {
442 difference() { 441 difference() {
443 cylinder(d=pulley_d,h=knob_bore_l,$fn=fnd*pulley_d); 442 cylinder(d=pulley_d,h=knob_bore_l,$fn=fnd*pulley_d);
444 translate([0,0,-1]) difference() { 443 translate([0,0,-1]) difference() {
445 cylinder(d=bore_d+knob_bore_d_tolerance,h=knob_bore_l+2); 444 cylinder(d=bore_d+knob_bore_d_tolerance,h=knob_bore_l+2);
446 translate([-bore_d/2-1,bore_dd-bore_d/2+knob_bore_d_tolerance/2,-1]) 445 translate([-bore_d/2-1,bore_dd-bore_d/2+knob_bore_d_tolerance/2,-1])
447 cube([bore_d+2,bore_d/2,knob_bore_l+4]); 446 cube([bore_d+2,bore_d/2,knob_bore_l+4]);
448 } 447 }
449 } 448 }
450 } 449 }
451 difference() { 450 difference() {
452 union() { 451 union() {
453 cylinder(d1=gearbox_d-2*ch,d2=gearbox_d,h=ch+epsilon,$fn=fnd*gearbox_d); 452 cylinder(d1=gearbox_d-2*ch,d2=gearbox_d,h=ch+epsilon,$fn=fnd*gearbox_d);
454 translate([0,0,ch]) 453 translate([0,0,ch])
455 cylinder(d=gearbox_d,h=knob_h-2*ch+epsilon,$fn=fnd*gearbox_d); 454 cylinder(d=gearbox_d,h=knob_h-2*ch+epsilon,$fn=fnd*gearbox_d);
456 translate([0,0,knob_h-ch]) 455 translate([0,0,knob_h-ch])
457 cylinder(d1=gearbox_d,d2=gearbox_d-2*ch,h=ch,$fn=fnd*gearbox_d); 456 cylinder(d1=gearbox_d,d2=gearbox_d-2*ch,h=ch,$fn=fnd*gearbox_d);
458 } 457 }
459 for(a=[0:360/knob_indents:359]) rotate([0,0,a]) 458 for(a=[0:360/knob_indents:359]) rotate([0,0,a])
460 translate([0,gearbox_d/2,-1]) 459 translate([0,gearbox_d/2,-1])
461 cylinder(d=knob_indent_d,h=knob_h+2,$fn=fnd*knob_indent_d); 460 cylinder(d=knob_indent_d,h=knob_h+2,$fn=fnd*knob_indent_d);
462 } 461 }
463 } 462 }
464 }//knob module 463 }//knob module
465 464
466 module debug() { 465 module debug() {
467 difference() { 466 difference() {
468 children(); 467 children();
469 if(debug) { 468 if(debug) {
470 // spring tensioner debug cutout 469 // spring tensioner debug cutout
471 if(tensioner) // TODO: collapse copypasted transformations 470 if(tensioner) // TODO: collapse copypasted transformations
472 translate([-gearbox_d/2,0,0]) 471 translate([-gearbox_d/2,0,0])
473 translate([0,-longwing,ls_z]) rotate([0,-90,0]) 472 translate([0,-longwing,ls_z]) rotate([0,-90,0])
474 translate([0,-lever_thickness/2-1,-gearbox_d]) 473 translate([0,-lever_thickness/2-1,-gearbox_d])
475 cube(size=[body_h/2+1,lever_thickness/2+1,gearbox_d+2]); 474 cube(size=[body_h/2+1,lever_thickness/2+1,gearbox_d+2]);
476 // lever axis debug cutout 475 // lever axis debug cutout
477 translate([mount_d/2,0,-1]) 476 translate([mount_d/2,0,-1])
478 rotate([0,0,-45]) 477 rotate([0,0,-45])
479 cube(size=[gearbox_d-mount_d,gearbox_d-mount_d,body_h+knob_h+2]); 478 cube(size=[gearbox_d-mount_d,gearbox_d-mount_d,body_h+knob_h+2]);
480 // idler debug cutout 479 // idler debug cutout
481 translate([0,0,ls_z]) 480 translate([0,0,ls_z])
482 place_idler() 481 place_idler()
483 rotate([0,0,-45]) 482 rotate([0,0,-45])
484 translate([0,0,-lever_thickness/2-epsilon]) 483 translate([0,0,-lever_thickness/2-epsilon])
485 cube(size=[(idler_d+idler_clearance)/2,(idler_d+idler_clearance)/2, 484 cube(size=[(idler_d+idler_clearance)/2,(idler_d+idler_clearance)/2,
486 lever_thickness+2*epsilon]); 485 lever_thickness+2*epsilon]);
487 // pushfit debug cutout 486 // pushfit debug cutout
488 place_idler() 487 place_idler()
489 translate([-idler_d/2+filament_offset,0,ls_z]) 488 translate([-idler_d/2+filament_offset,0,ls_z])
490 cube(size=[gearbox_d/2,gearbox_d/2+pf_h(pf),body_h-ls_z+1]); 489 cube(size=[gearbox_d/2,gearbox_d/2+pf_h(pf),body_h-ls_z+1]);
491 }//if debug 490 }//if debug
492 }//difference 491 }//difference
493 } 492 }
494 493
495 mirrorleft() 494 mirrorleft()
496 debug() 495 debug()
497 if(what=="lever") color("green",0.7) lever(); 496 if(what=="lever") color("green",0.7) lever();
498 else if(what=="body") color("yellow",0.7) body(); 497 else if(what=="body") color("yellow",0.7) body();
499 else if(what=="knob") color("red",0.7) knob(); 498 else if(what=="knob") color("red",0.7) knob();
500 else if(what=="springpad") color("blue",0.7) springpad(); 499 else if(what=="springpad") color("blue",0.7) springpad();
501 else if(what=="both") { 500 else if(what=="both") {
502 color("green",0.7) lever(); 501 color("green",0.7) lever();
503 color("yellow",0.7) body(); 502 color("yellow",0.7) body();
504 }else{ 503 }else{
505 color("green",0.7) lever(); 504 color("green",0.7) lever();
506 color("yellow",0.7) body(); 505 color("yellow",0.7) body();
507 color("red",0.7) knob(); 506 color("red",0.7) knob();
508 color("blue",0.7) springpad(); 507 color("blue",0.7) springpad();
509 } 508 }
510} 509}
511 510
512the_extruder(what="*",left=false,debug=true); 511the_extruder(what="*",left=false,debug=true);