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authorMichael Krelin <hacker@klever.net>2018-08-31 22:20:06 (UTC)
committer Michael Krelin <hacker@klever.net>2018-08-31 22:20:06 (UTC)
commit875ceca4d231a22423c42d44d8d14e02d3b4ef37 (patch) (side-by-side diff)
treedc2240e3696adcbc41512a7659bf6066a3bd2246
parent428ea05af148a788e379a9b84a31c6322271cf37 (diff)
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body label and thickness as parameters
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 fcd179e..f01e765 100644
--- a/another.scad
+++ b/another.scad
@@ -45,54 +45,55 @@ module the_extruder(
idler_screwhead_d=6, idler_screwhead_h=3,
pf = pushfit_metal,
pf_shell = max(3*layer_height,3*extrusion_width),
// empty spaces
idler_travel = 3, // how far should idler travel when pressed
idler_clearance=.5,
pulley_small_d_clearance=.5,
lever_v_clearance=.7, // vertical clearance for the lever
spring_d_clearance=1,
protrusion_tolerance_h=.5, // horizontal tolerance for the motor protrusion
protrusion_tolerance_v=.5, // vertical tolerance for the motor protrusion
mount_screw_d_tolerance=.4,
idler_v_tolerance=.5,
knob_bore_d_tolerance=.6,
st_nut_h_tolerance=.2,
st_nut_d_tolerance=.2,/* TODO: make it st_nut_w_tolerance */
st_screw_d_tolerance=.5,
st_split_w_tolerance = .3,
min_z_shell = 4*layer_height, // the very minimal shell thickness along z-axis.
min_xy_shell = 2*extrusion_width,
+ body_label = "another", body_label_thickness = 2*layer_height,
+
what="lever", // lever|body|knob|springpad|*
left=false,
vitamins = true,
bridges = true,
debug = false,
- label = "another"
) {
fnd = 2*PI; fnr = 2*fnd;
function lu(m,k) = m[search([k],m)[0]][1];
pulley_d = lu(pulley,"d");
pulley_h = lu(pulley,"h");
teeth_elevation = lu(pulley,"fe");
filament_offset = lu(pulley,"g")+filament_d/2;
pulley_d_clearance = lu(pulley,"ssrc")*2;
idler_filament_offset = filament_path_d/2;
lever_shell = mount_screwhead_h+0.5;
lever_thickness=max(spring_d+spring_d_clearance+layer_height*8,idler_h+idler_v_tolerance+2*lever_shell);
lsd = idler_d-idler_clearance*2; // the diameter of lever thingie
longwing=(mount_d+mount_screw_d+mount_screw_d_tolerance+spring_d+spring_d_clearance)/2+min_xy_shell;
shortwing = let(a=mount_d/2,c=(pulley_d+idler_d)/2/sqrt(2))
sqrt(c*c+pow(a-c,2));
longwing_travel = idler_travel*longwing/shortwing;
h_ = (pulley_d+idler_d)/(2*sqrt(2));
ri = sqrt( pow(h_,2) + pow(mount_d/2-h_,2) );
spring_dl = idler_travel*longwing/ri;
// finger and spring support
fsw = gearbox_d-(gearbox_d-mount_d)/2-max(spring_lc,longwing_travel+(gearbox_d-mount_d)/2);
@@ -339,58 +340,58 @@ module the_extruder(
}//difference translate
// spring tensioner
translate([-gearbox_d/2,-longwing,ls_z]) rotate([0,-90,0]) {
mirror([0,0,1]) {
translate([0,0,st_thickshell])
hull() for(o=[0,spring_d]) translate([0,-o,0])
rotate([0,0,30])
cylinder(d=st_nut_d+st_nut_d_tolerance,h=st_nut_h+st_nut_h_tolerance,$fn=6);
translate([0,0,-1]) cylinder(d=st_screw_d+st_screw_d_tolerance,h=fsw+2,$fn=fnd*(st_screw_d+st_screw_d_tolerance));
bigd = spring_d+spring_d_clearance;
hf = (bigd-st_screw_d-st_screw_d_tolerance)/2;
translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell-epsilon]) {
cylinder(d1=st_screw_d+st_screw_d_tolerance,d2=bigd,
h=hf+epsilon, $fn=fnd*bigd);
translate([0,-(st_split_w+st_split_w_tolerance)/2,0])
cube(size=[body_h-ls_z+1,st_split_w+st_split_w_tolerance,fsw+1]);
}//translate
translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+hf-epsilon])
cylinder(d=bigd,h=fsw+1,$fn=fnd*bigd);
}//mirror
}//translate
// label
- label_thickness = 2*layer_height;
- label_len = len(label);
- if(label_len) {
+ if(body_label) let(label=body_label,label_thickness=body_label_thickness) {
+ label_thickness = 2*layer_height;
+ label_len = len(label);
labelspace = [gearbox_d/2-mount_screwhead_d/2-min_xy_shell,longwing-(mount_screwhead_d-st_split_w-st_split_w_tolerance)/2-2*min_xy_shell];
translate([0,0,body_h-label_thickness])
linear_extrude(height=label_thickness+epsilon,convexity=64)
translate([-mount_screwhead_d/2-min_xy_shell-labelspace.x/2,-longwing+(st_split_w+st_split_w_tolerance)/2+min_xy_shell+labelspace.y/2])
mirror([left?0:1,0])
text(text=label,size=labelspace.x/label_len,halign="center",valign="center",font="Arial Black");
- }//if(label_len)
+ }//if(body_label)
}//difference
}//body module
module springpad() {
smalld=st_screw_d+st_screw_d_tolerance+min_xy_shell;
bigd = spring_d+spring_d_clearance/2;
hf = (bigd-smalld)/2;
h = hf*3.5;
translate([-gearbox_d/2+st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+1,-longwing,filament_elevation])
rotate([0,90,0]) difference() {
union() {
cylinder(d1=smalld,d2=bigd,h=hf,$fn=fnd*bigd);
translate([0,0,hf-epsilon])
cylinder(d=bigd,h=h-hf,$fn=fnd*bigd);
translate([0,0,h])
sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4);
l = body_h-ls_z;
w = st_split_w;
hull() translate([0,-st_split_w/2,0]) mirror([1,0,0]) {
translate([0,0,w])
cube(size=[l,st_split_w,w]);
cube(size=[l-w,st_split_w,2*w]);