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authorMichael Krelin <hacker@klever.net>2018-08-10 09:42:10 (UTC)
committer Michael Krelin <hacker@klever.net>2018-08-10 09:42:10 (UTC)
commit0f096a81ab50e7dd4a9e949f7b4c49e701d3652c (patch) (unidiff)
treea09720eb2b2cb60fc3589a81f619a3ed3f4089a1
parent0c87c56ff30c8f72e6348482a95a07841ce93e10 (diff)
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another: add tensioner screw tolerance
Diffstat (more/less context) (ignore whitespace changes)
-rw-r--r--another.scad11
1 files changed, 6 insertions, 5 deletions
diff --git a/another.scad b/another.scad
index 7a3b0ac..da5f695 100644
--- a/another.scad
+++ b/another.scad
@@ -54,12 +54,13 @@ module the_extruder(
54 protrusion_tolerance_v=.5, // vertical tolerance for the motor protrusion 54 protrusion_tolerance_v=.5, // vertical tolerance for the motor protrusion
55 mount_screw_d_tolerance=.4, 55 mount_screw_d_tolerance=.4,
56 idler_v_tolerance=.5, 56 idler_v_tolerance=.5,
57 knob_bore_d_tolerance=.6, 57 knob_bore_d_tolerance=.6,
58 st_nut_h_tolerance=.2, 58 st_nut_h_tolerance=.2,
59 st_nut_d_tolerance=.2,/* TODO: make it st_nut_w_tolerance */ 59 st_nut_d_tolerance=.2,/* TODO: make it st_nut_w_tolerance */
60 st_screw_d_tolerance=.3,
60 61
61 what="lever", // lever|body|knob|springpad|* 62 what="lever", // lever|body|knob|springpad|*
62 left=false, 63 left=false,
63 vitamins = true, 64 vitamins = true,
64 supports = false, bridges = true, 65 supports = false, bridges = true,
65 tensioner = true, 66 tensioner = true,
@@ -213,17 +214,17 @@ module the_extruder(
213 if(!tensioner) finger_indent(d=lever_thickness-1,r=15); else { 214 if(!tensioner) finger_indent(d=lever_thickness-1,r=15); else {
214 mirror([0,0,1]) { 215 mirror([0,0,1]) {
215 translate([0,0,st_thickshell]) 216 translate([0,0,st_thickshell])
216 hull() for(o=[0,spring_d]) translate([0,-o,0]) 217 hull() for(o=[0,spring_d]) translate([0,-o,0])
217 rotate([0,0,30]) 218 rotate([0,0,30])
218 cylinder(d=st_nut_d+st_nut_d_tolerance,h=st_nut_h+st_nut_h_tolerance,$fn=6); 219 cylinder(d=st_nut_d+st_nut_d_tolerance,h=st_nut_h+st_nut_h_tolerance,$fn=6);
219 translate([0,0,-1]) cylinder(d=st_screw_d,h=fsw+2,$fn=fnd*st_screw_d); 220 translate([0,0,-1]) cylinder(d=st_screw_d+st_screw_d_tolerance,h=fsw+2,$fn=fnd*(st_screw_d+st_screw_d_tolerance));
220 bigd = spring_d+spring_d_clearance; 221 bigd = spring_d+spring_d_clearance;
221 hf = (bigd-st_screw_d)/2; 222 hf = (bigd-st_screw_d-st_screw_d_tolerance)/2;
222 translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell-epsilon]) 223 translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell-epsilon])
223 cylinder(d1=st_screw_d,d2=bigd, 224 cylinder(d1=st_screw_d+st_screw_d_tolerance,d2=bigd,
224 h=hf+epsilon, $fn=fnd*bigd); 225 h=hf+epsilon, $fn=fnd*bigd);
225 translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+hf-epsilon]) 226 translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+hf-epsilon])
226 cylinder(d=bigd,h=fsw+1,$fn=fnd*bigd); 227 cylinder(d=bigd,h=fsw+1,$fn=fnd*bigd);
227 } 228 }
228 } 229 }
229 } 230 }
@@ -332,26 +333,26 @@ module the_extruder(
332 } 333 }
333 } 334 }
334 335
335 }//body module 336 }//body module
336 337
337 module springpad() { 338 module springpad() {
338 smalld=st_screw_d+2*extrusion_width; 339 smalld=st_screw_d+st_screw_d_tolerance+2*extrusion_width;
339 bigd = spring_d+spring_d_clearance/2; 340 bigd = spring_d+spring_d_clearance/2;
340 hf = (bigd-smalld)/2; 341 hf = (bigd-smalld)/2;
341 translate([-gearbox_d/2+st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+1,-longwing,filament_elevation]) 342 translate([-gearbox_d/2+st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+1,-longwing,filament_elevation])
342 rotate([0,90,0]) difference() { 343 rotate([0,90,0]) difference() {
343 union() { 344 union() {
344 cylinder(d1=smalld,d2=bigd,h=hf,$fn=fnd*bigd); 345 cylinder(d1=smalld,d2=bigd,h=hf,$fn=fnd*bigd);
345 translate([0,0,hf-epsilon]) 346 translate([0,0,hf-epsilon])
346 cylinder(d=bigd,h=hf*2,$fn=fnd*bigd); 347 cylinder(d=bigd,h=hf*2,$fn=fnd*bigd);
347 translate([0,0,3*hf]) 348 translate([0,0,3*hf])
348 sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4); 349 sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4);
349 } 350 }
350 translate([0,0,-epsilon]) 351 translate([0,0,-epsilon])
351 cylinder(d=st_screw_d,h=2*hf+epsilon,$fn=fnd*st_screw_d); 352 cylinder(d=st_screw_d+st_screw_d_tolerance,h=2*hf+epsilon,$fn=fnd*(st_screw_d+st_screw_d_tolerance));
352 } 353 }
353 } 354 }
354 355
355 module knob() { 356 module knob() {
356 ch = knob_indent_d/2; 357 ch = knob_indent_d/2;
357 translate([0,0,body_h+epsilon]) { 358 translate([0,0,body_h+epsilon]) {