author | Michael Krelin <hacker@klever.net> | 2018-08-26 19:14:23 (UTC) |
---|---|---|
committer | Michael Krelin <hacker@klever.net> | 2018-08-26 19:14:23 (UTC) |
commit | 3855bfa499f674b41fa5edf3506e41238520d2da (patch) (unidiff) | |
tree | b5db5ec8bb73bf72cae6f6326d7c883df9566cfe /another.scad | |
parent | c36f7b9afffdf4fd363ed5abb5a8bd2b4644aec8 (diff) | |
download | extrudery-3855bfa499f674b41fa5edf3506e41238520d2da.zip extrudery-3855bfa499f674b41fa5edf3506e41238520d2da.tar.gz extrudery-3855bfa499f674b41fa5edf3506e41238520d2da.tar.bz2 |
the comment
-rw-r--r-- | another.scad | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/another.scad b/another.scad index b752f30..2383276 100644 --- a/another.scad +++ b/another.scad | |||
@@ -59,49 +59,49 @@ module the_extruder( | |||
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; // the diameter of lever thingie |
84 | longwing=(mount_d+mount_screw_d+mount_screw_d_tolerance+spring_d+spring_d_clearance)/2+extrusion_width; | 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]) |