author | Michael Krelin <hacker@klever.net> | 2018-08-06 16:52:38 (UTC) |
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committer | Michael Krelin <hacker@klever.net> | 2018-08-06 16:52:38 (UTC) |
commit | 8efe8f057476efcaba06c6eac7d64792c53e442a (patch) (unidiff) | |
tree | 85f0aabee02edc88ee6836c51e21230d8c232259 /another.scad | |
parent | 1d8f93c354df4effca90d355841d189ecdec7a27 (diff) | |
download | extrudery-8efe8f057476efcaba06c6eac7d64792c53e442a.zip extrudery-8efe8f057476efcaba06c6eac7d64792c53e442a.tar.gz extrudery-8efe8f057476efcaba06c6eac7d64792c53e442a.tar.bz2 |
introduce idler screw dimensions
which are, in fact, idler screw hole dimensions…
-rw-r--r-- | another.scad | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/another.scad b/another.scad index 03f3bf9..dbd20f3 100644 --- a/another.scad +++ b/another.scad | |||
@@ -30,24 +30,26 @@ module the_extruder( | |||
30 | knob_h = 10, | 30 | knob_h = 10, |
31 | knob_bore_l = 4, | 31 | knob_bore_l = 4, |
32 | knob_indent_d = 4, | 32 | knob_indent_d = 4, |
33 | knob_indents = 12, | 33 | knob_indents = 12, |
34 | // spring tensioner | 34 | // spring tensioner |
35 | st_nut_d = 9, st_nut_h = 4, | 35 | st_nut_d = 9, st_nut_h = 4, |
36 | st_screw_d = 5, | 36 | st_screw_d = 5, |
37 | st_thickshell = 8*extrusion_width, st_thinshell = 4*extrusion_width, | 37 | st_thickshell = 8*extrusion_width, st_thinshell = 4*extrusion_width, |
38 | 38 | ||
39 | // screw it | 39 | // screw it |
40 | mount_screw_d = 3.1, mount_screw_l = 20, | 40 | mount_screw_d = 3.1, mount_screw_l = 20, |
41 | mount_screwhead_d=6, mount_screwhead_h=3, | 41 | mount_screwhead_d=6, mount_screwhead_h=3, |
42 | idler_screw_d = 3, | ||
43 | idler_screwhead_d=6, idler_screwhead_h=3, | ||
42 | 44 | ||
43 | pf = pushfit_embeddest, | 45 | pf = pushfit_embeddest, |
44 | 46 | ||
45 | // empty spaces | 47 | // empty spaces |
46 | idler_travel = 3, // how far should idler travel when pressed | 48 | idler_travel = 3, // how far should idler travel when pressed |
47 | idler_clearance=1, | 49 | idler_clearance=1, |
48 | pulley_clearance=2, | 50 | pulley_clearance=2, |
49 | lever_v_clearance=.7, // vertical clearance for the lever | 51 | lever_v_clearance=.7, // vertical clearance for the lever |
50 | spring_d_clearance=1, | 52 | spring_d_clearance=1, |
51 | protrusion_tolerance_h=.5, // horizontal tolerance for the motor protrusion | 53 | protrusion_tolerance_h=.5, // horizontal tolerance for the motor protrusion |
52 | protrusion_tolerance_v=.5, // vertical tolerance for the motor protrusion | 54 | protrusion_tolerance_v=.5, // vertical tolerance for the motor protrusion |
53 | mount_screw_d_tolerance=.4, | 55 | mount_screw_d_tolerance=.4, |
@@ -104,25 +106,25 @@ module the_extruder( | |||
104 | translate([0,0,-epsilon]) cylinder(d=protrusion_d,h=protrusion_h,$fn=30); | 106 | translate([0,0,-epsilon]) cylinder(d=protrusion_d,h=protrusion_h,$fn=30); |
105 | translate([0,0,protrusion_h]) { | 107 | translate([0,0,protrusion_h]) { |
106 | difference() { | 108 | difference() { |
107 | cylinder(d=bore_d,h=bore_l,$fn=30); | 109 | cylinder(d=bore_d,h=bore_l,$fn=30); |
108 | translate([-bore_d/2-1,bore_dd-bore_d/2,-1]) | 110 | translate([-bore_d/2-1,bore_dd-bore_d/2,-1]) |
109 | cube([bore_d+2,bore_d/2,bore_l+2]); | 111 | cube([bore_d+2,bore_d/2,bore_l+2]); |
110 | } | 112 | } |
111 | translate([0,0,pulley_elevation]) { | 113 | translate([0,0,pulley_elevation]) { |
112 | cylinder(d=pulley_d,h=pulley_h,$fn=30); | 114 | cylinder(d=pulley_d,h=pulley_h,$fn=30); |
113 | translate([0,0,teeth_elevation]) { | 115 | translate([0,0,teeth_elevation]) { |
114 | place_idler() { | 116 | place_idler() { |
115 | cylinder(d=idler_d,h=idler_h,center=true,$fn=30); | 117 | cylinder(d=idler_d,h=idler_h,center=true,$fn=30); |
116 | cylinder(d=idler_id,h=lever_thickness+2,center=true,$fn=30); | 118 | cylinder(d=idler_screw_d,h=lever_thickness+2,center=true,$fn=30); |
117 | }//place idler | 119 | }//place idler |
118 | // filament path | 120 | // filament path |
119 | rotate([0,0,45]) translate([(pulley_d-filament_path_d)/2,0,0]) { | 121 | rotate([0,0,45]) translate([(pulley_d-filament_path_d)/2,0,0]) { |
120 | rotate([90,0,0]) cylinder(d=filament_d,h=gearbox_d*2,center=true,$fn=15); | 122 | rotate([90,0,0]) cylinder(d=filament_d,h=gearbox_d*2,center=true,$fn=15); |
121 | rotate([-90,0,0]) | 123 | rotate([-90,0,0]) |
122 | translate([0,0,mount_d/sqrt(2)/2+mount_screw_d]) | 124 | translate([0,0,mount_d/sqrt(2)/2+mount_screw_d]) |
123 | pushfit(pf); | 125 | pushfit(pf); |
124 | } | 126 | } |
125 | }//translate teeth | 127 | }//translate teeth |
126 | }//translate pulley | 128 | }//translate pulley |
127 | }//translate protrusion | 129 | }//translate protrusion |
128 | }//vitamins | 130 | }//vitamins |
@@ -151,27 +153,27 @@ module the_extruder( | |||
151 | translate([0,-filament_path_d/2/sqrt(2),0]) rotate([0,0,45]) | 153 | translate([0,-filament_path_d/2/sqrt(2),0]) rotate([0,0,45]) |
152 | cube(size=[filament_path_d/2,filament_path_d/2,3*gearbox_d],center=true); | 154 | cube(size=[filament_path_d/2,filament_path_d/2,3*gearbox_d],center=true); |
153 | } | 155 | } |
154 | 156 | ||
155 | // idler space and mounting hole | 157 | // idler space and mounting hole |
156 | place_idler() { | 158 | place_idler() { |
157 | difference() { | 159 | difference() { |
158 | cylinder(d=idler_d+idler_clearance*2,h=idler_h+idler_v_tolerance,center=true,$fn=60); | 160 | cylinder(d=idler_d+idler_clearance*2,h=idler_h+idler_v_tolerance,center=true,$fn=60); |
159 | if(supports) for(y=[-lsd/2+extrusion_width:(lsd-2*extrusion_width)/3:lsd/2-extrusion_width]) | 161 | if(supports) for(y=[-lsd/2+extrusion_width:(lsd-2*extrusion_width)/3:lsd/2-extrusion_width]) |
160 | translate([-lsd/2-1,y-extrusion_width/2,-idler_h/2-idler_v_tolerance/2-1]) | 162 | translate([-lsd/2-1,y-extrusion_width/2,-idler_h/2-idler_v_tolerance/2-1]) |
161 | cube(size=[lsd+2,extrusion_width,idler_h+idler_v_tolerance+2]); | 163 | cube(size=[lsd+2,extrusion_width,idler_h+idler_v_tolerance+2]); |
162 | } | 164 | } |
163 | cylinder(d=mount_screw_d+mount_screw_d_tolerance,h=lever_thickness+2,center=true,$fn=30); | 165 | cylinder(d=idler_screw_d,h=lever_thickness+2,center=true,$fn=30); |
164 | translate([0,0,lever_thickness/2-mount_screwhead_h]) | 166 | translate([0,0,lever_thickness/2-idler_screwhead_h]) |
165 | cylinder(d=mount_screwhead_d,h=mount_screwhead_h+1,$fn=fnd*mount_screwhead_d); | 167 | cylinder(d=idler_screwhead_d,h=idler_screwhead_h+1,$fn=fnd*idler_screwhead_d); |
166 | } | 168 | } |
167 | // mounting screw hole | 169 | // mounting screw hole |
168 | translate([mount_d/2,0,0]) | 170 | translate([mount_d/2,0,0]) |
169 | cylinder(d=mount_screw_d+mount_screw_d_tolerance,h=lever_thickness+2,center=true,$fn=fnd*mount_screw_d); | 171 | cylinder(d=mount_screw_d+mount_screw_d_tolerance,h=lever_thickness+2,center=true,$fn=fnd*mount_screw_d); |
170 | 172 | ||
171 | // lever end | 173 | // lever end |
172 | translate([mount_d/2,0,0]) rotate([0,90,0]) { | 174 | translate([mount_d/2,0,0]) rotate([0,90,0]) { |
173 | translate([0,-longwing,lsd/2]) finger_indent(d=lever_thickness-1,r=15); | 175 | translate([0,-longwing,lsd/2]) finger_indent(d=lever_thickness-1,r=15); |
174 | translate([0,-longwing,0]) | 176 | translate([0,-longwing,0]) |
175 | mirror([0,0,1]) | 177 | mirror([0,0,1]) |
176 | difference() { | 178 | difference() { |
177 | cylinder(d=spring_d+spring_d_clearance,h=lsd,$fn=fnd*(spring_d+spring_d_clearance)); | 179 | cylinder(d=spring_d+spring_d_clearance,h=lsd,$fn=fnd*(spring_d+spring_d_clearance)); |