body label and thickness as parameters

1 files changed, 4 insertions, 3 deletions

diff --git a/another.scad b/another.scad
index fcd179e..f01e765 100644
--- a/another.scad
+++ b/another.scad
@@ -21,102 +21,103 @@ module the_extruder(
          pulley_elevation = 1,                  // pulley elevation above the protrusion
  // idler properties
          idler_d = 9.5, idler_h = 4, idler_id = 3,// idler dimensions: outer and inner diameters and height
  // spring properties
          spring_d = 10, spring_lc = 9.6,        // spring diameter and compressed length
  // filament path properties
  filament_d = 1.75,
  filament_path_d = 2,
          filament_guide_d = 4,                  // PTFE filament guide diameter
  // knob properties
  knob_h = 10,
  knob_bore_l = 4,
  knob_indent_d = 4,
  knob_indents = 12,
  // spring tensioner
  st_nut_d = 9, st_nut_h = 4,
  st_screw_d = 5,
  st_thickshell = 8*extrusion_width, st_thinshell = 2*extrusion_width,
  st_split_w = 4*extrusion_width,
 
  // screw it
  mount_screw_d = 3.1, mount_screw_l = 20,
  mount_screwhead_d=6, mount_screwhead_h=3,
  idler_screw_d = 3,
  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);
 
  mount_min_depth = mounthole_min_depth ? mounthole_min_depth : mounthole_depth-1;
  mount_max_depth = mounthole_max_depth ? mounthole_max_depth : mounthole_depth+1;
  filament_elevation=protrusion_h+pulley_elevation+teeth_elevation;
  ls_z = filament_elevation; // leverspace mid-z
  ls_h = lever_thickness+lever_v_clearance; // leverspace height
  mount_depth = mount_screw_l - (ls_z+ls_h/2+min_z_shell);
  body_h = max(protrusion_h+bore_l,mount_screw_l-mount_depth+mount_screwhead_h+min_z_shell,ls_z*2);
  echo("mount depth",mount_depth);
 
  module teardrop(r,d,h,center=false,angle=45) {
   dd = d ? d : (2*r);
   $fn = dd*fnd;
   cylinder(d=dd,h=h,center=center);
   if(angle>0) translate([0,0,center?-h/2:0])
    rotate([0,0,angle])
    cube(size=[d/2,d/2,h]);
  }
 
  module mirrorleft() {
   mirror([left?0:1,0,0]) children();
  }
  module place_idler() {
   rotate([0,0,45])
   translate([(pulley_d+idler_d)/2,0,0])
@@ -315,106 +316,106 @@ module the_extruder(
     square([gearbox_d/2+1,ls_h]);
    }
 
    // back side cutout
    // XXX: this is somewhat ugly and potentially bugged,
    //      but I want to sleep.
    a0_ = atan(
     (mount_d/sqrt(2)/2+mount_screw_d+pf_h(pf)+gearbox_d/2)
     /
     (
      pulley_d/2+filament_offset-
      (pf_d(pf)+2*pf_shell)/2/cos(30)
     )
    );
    a0 = -135 + ( (a0_>0) ? a0_ : 180+a0_ );
    a1 = atan((longwing-lever_thickness/2)/(gearbox_d/2));
    translate([0,0,ls_z]) difference() {
     rotate([0,0,-180+a0])
     rotate_extrude(angle=a1-a0)
     translate([0,-ls_h/2])
     square([sqrt(pow(gearbox_d/2,2)+pow(longwing-lever_thickness/2,2))+1,
            ls_h]);
     translate([-mount_d/2,0,0])
     cylinder(d=gearbox_d-mount_d,h=ls_h+2,center=true,$fn=fnd*(gearbox_d-mount_d));
    }//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
+   if(body_label) let(label=body_label,label_thickness=body_label_thickness) {
    label_thickness = 2*layer_height;
    label_len = len(label);
-   if(label_len) {
     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,$fn=fnd*spring_d*3/4);
     l = body_h-ls_z;
     w = st_split_w;
     hull() translate([0,-st_split_w/2,0]) mirror([1,0,0]) {
      translate([0,0,w])
      cube(size=[l,st_split_w,w]);
      cube(size=[l-w,st_split_w,2*w]);
     }
    }
    translate([0,0,-epsilon])
    cylinder(d=st_screw_d+st_screw_d_tolerance,h=2*hf+epsilon,$fn=fnd*(st_screw_d+st_screw_d_tolerance));
   }
  }
 
  module knob() {
   ch = knob_indent_d/2;
   translate([0,0,body_h+epsilon]) {
    mirror([0,0,1]) translate([0,0,-epsilon]) {
     difference() {
      cylinder(d=pulley_d,h=knob_bore_l,$fn=fnd*pulley_d);
      translate([0,0,-1]) difference() {
       cylinder(d=bore_d+knob_bore_d_tolerance,h=knob_bore_l+2);
       translate([-bore_d/2-1,bore_dd-bore_d/2+knob_bore_d_tolerance/2,-1])
       cube([bore_d+2,bore_d/2,knob_bore_l+4]);
      }
     }
    }
    difference() {
     union() {
      cylinder(d1=gearbox_d-2*ch,d2=gearbox_d,h=ch+epsilon,$fn=fnd*gearbox_d);
      translate([0,0,ch])