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-rw-r--r--another.scad34
1 files changed, 9 insertions, 25 deletions
diff --git a/another.scad b/another.scad
index 461dc26..fcd179e 100644
--- a/another.scad
+++ b/another.scad
@@ -37,25 +37,24 @@ module the_extruder(
37 st_screw_d = 5, 37 st_screw_d = 5,
38 st_thickshell = 8*extrusion_width, st_thinshell = 2*extrusion_width, 38 st_thickshell = 8*extrusion_width, st_thinshell = 2*extrusion_width,
39 st_split_w = 4*extrusion_width, 39 st_split_w = 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_metal, 47 pf = pushfit_metal,
48 pf_shell = max(3*layer_height,3*extrusion_width), 48 pf_shell = max(3*layer_height,3*extrusion_width),
49 pf_smooth = true,
50 49
51 // empty spaces 50 // empty spaces
52 idler_travel = 3, // how far should idler travel when pressed 51 idler_travel = 3, // how far should idler travel when pressed
53 idler_clearance=.5, 52 idler_clearance=.5,
54 pulley_small_d_clearance=.5, 53 pulley_small_d_clearance=.5,
55 lever_v_clearance=.7, // vertical clearance for the lever 54 lever_v_clearance=.7, // vertical clearance for the lever
56 spring_d_clearance=1, 55 spring_d_clearance=1,
57 protrusion_tolerance_h=.5, // horizontal tolerance for the motor protrusion 56 protrusion_tolerance_h=.5, // horizontal tolerance for the motor protrusion
58 protrusion_tolerance_v=.5, // vertical tolerance for the motor protrusion 57 protrusion_tolerance_v=.5, // vertical tolerance for the motor protrusion
59 mount_screw_d_tolerance=.4, 58 mount_screw_d_tolerance=.4,
60 idler_v_tolerance=.5, 59 idler_v_tolerance=.5,
61 knob_bore_d_tolerance=.6, 60 knob_bore_d_tolerance=.6,
@@ -246,48 +245,33 @@ module the_extruder(
246 mirror([0,1,0]) cube(size=[fsw,longwing+(st_split_w+st_split_w_tolerance)/2+st_thickshell,body_h-ls_z]); 245 mirror([0,1,0]) cube(size=[fsw,longwing+(st_split_w+st_split_w_tolerance)/2+st_thickshell,body_h-ls_z]);
247 hhh=ls_z; 246 hhh=ls_z;
248 translate([0,0,0]) 247 translate([0,0,0])
249 mirror([0,1,0]) cube(size=[fsw,longwing-hhh+lever_thickness/sqrt(2),hhh+lever_thickness/2]); 248 mirror([0,1,0]) cube(size=[fsw,longwing-hhh+lever_thickness/sqrt(2),hhh+lever_thickness/2]);
250 }//hull translate 249 }//hull translate
251 250
252 // pushfit bracket 251 // pushfit bracket
253 translate([0,0,filament_elevation]) 252 translate([0,0,filament_elevation])
254 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])
255 rotate([-90,0,0]) 254 rotate([-90,0,0])
256 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:*/]) {
257 pfbl = pf_h(pf)+gearbox_d/2; //TODO: 256 pfbl = pf_h(pf)+gearbox_d/2; //TODO:
258 if(pf_smooth) { 257 pfbd = pf_d(pf)+2*pf_shell;
259 pfbd = pf_d(pf)+2*pf_shell; 258 hull() {
260 hull() { 259 cylinder(d=pfbd,h=pfbl,$fn=pfbd*fnd);
261 cylinder(d=pfbd,h=pfbl,$fn=pfbd*fnd); 260 translate([-epsilon/2,0,0]) {
262 translate([-epsilon/2,0,0]) { 261 cube(size=[epsilon,filament_elevation,pfbl-filament_elevation+pfbd/2]);
263 cube(size=[epsilon,filament_elevation,pfbl-filament_elevation+pfbd/2]); 262 mirror([0,1,0])
264 mirror([0,1,0]) 263 cube(size=[epsilon,body_h-filament_elevation,pfbl-body_h+filament_elevation+pfbd/2]);
265 cube(size=[epsilon,body_h-filament_elevation,pfbl-body_h+filament_elevation+pfbd/2]); 264 }//translate
266 }//translate 265 }//hull
267 }//hull
268 }else{
269 pfb2a = pf_d(pf)+2*pf_shell; pfba = pfb2a/2;
270 pfbd = pfb2a/cos(30);
271 pfbs = pfb2a*tan(30);
272 cylinder(d=pfbd,h=pfbl,$fn=6);
273 translate([-pfbs/2,0,0]) {
274 hull() {
275 translate([0,-pfba,0]) cube(size=[pfbs,pfb2a,pfbl]);
276 cube(size=[pfbs,filament_elevation,pfbl-filament_elevation+pfba]);
277 mirror([0,1,0])
278 cube(size=[pfbs,body_h-filament_elevation,pfbl-body_h+filament_elevation+pfba]);
279 }//hull
280 }//translate*/
281 }//if(pf_smooth)
282 }//translate rotate translate rotate translate 266 }//translate rotate translate rotate translate
283 }//union (first child of difference) 267 }//union (first child of difference)
284 268
285 // protrusion 269 // protrusion
286 translate([0,0,-1]) 270 translate([0,0,-1])
287 cylinder(d=protrusion_d+protrusion_tolerance_h,h=protrusion_h+protrusion_tolerance_v+1,$fn=fnd*(protrusion_d+protrusion_tolerance_h)); 271 cylinder(d=protrusion_d+protrusion_tolerance_h,h=protrusion_h+protrusion_tolerance_v+1,$fn=fnd*(protrusion_d+protrusion_tolerance_h));
288 // mount screw holes 272 // mount screw holes
289 for(zr=[0:90:359]) rotate([0,0,zr]) translate([mount_d/2,0,0]) { 273 for(zr=[0:90:359]) rotate([0,0,zr]) translate([mount_d/2,0,0]) {
290 translate([0,0,mount_screw_l-mount_depth-(bridges?layer_height:-epsilon)]) 274 translate([0,0,mount_screw_l-mount_depth-(bridges?layer_height:-epsilon)])
291 mirror([0,0,1]) 275 mirror([0,0,1])
292 cylinder(d=mount_screw_d+mount_screw_d_tolerance, 276 cylinder(d=mount_screw_d+mount_screw_d_tolerance,
293 h=mount_screw_l-mount_depth+1, 277 h=mount_screw_l-mount_depth+1,