change of no importance

1 files changed, 1 insertions, 1 deletions

diff --git a/another.scad b/another.scad
index f77fa7a..85715db 100644
--- a/another.scad
+++ b/another.scad
@@ -128,193 +128,193 @@ module the_extruder(
      }//hull
      hull() {
       translate([mount_d/2,0,0])
       cylinder(d=lsd,h=lever_thickness,center=true,$fn=60);
       translate([mount_d/2,-longwing,0]) rotate([0,90,0])
       cylinder(d=lever_thickness,h=lsd,center=true,$fn=60);
      }//hull
     }//union
  
     // filament path
     place_idler() translate([-(idler_d+filament_path_d)/2,0,0]) rotate([90,0,0]) {
      cylinder(d=filament_path_d,h=3*gearbox_d,center=true,$fn=30);
      translate([0,-filament_path_d/2/sqrt(2),0]) rotate([0,0,45])
      cube(size=[filament_path_d/2,filament_path_d/2,3*gearbox_d],center=true);
     }
     
     // idler space and mounting hole
     place_idler() {
      difference() {
       cylinder(d=idler_d+idler_clearance*2,h=idler_h+idler_v_tolerance,center=true,$fn=60);
       // supports
       for(y=[-lsd/2+extrusion_width:(lsd-2*extrusion_width)/3:lsd/2-extrusion_width])
        translate([-lsd/2-1,y-extrusion_width/2,-idler_h/2-idler_v_tolerance/2-1])
        cube(size=[lsd+2,extrusion_width,idler_h+idler_v_tolerance+2]);
      }
      cylinder(d=mount_screw_d+mount_screw_d_tolerance,h=lever_thickness+2,center=true,$fn=30);
      translate([0,0,lever_thickness/2-mount_screwhead_h]) 
      cylinder(d=mount_screwhead_d,h=mount_screwhead_h+1,$fn=2*PI*mount_screwhead_d);
     }
     // mounting screw hole
     translate([mount_d/2,0,0])
     cylinder(d=mount_screw_d+mount_screw_d_tolerance,h=lever_thickness+2,center=true,$fn=2*PI*mount_screw_d);
     
     // lever end
     translate([mount_d/2,0,0]) rotate([0,90,0]) {
      translate([0,-longwing,lsd/2]) finger_indent(d=lever_thickness-1,r=15);
      translate([0,-longwing,0])
      mirror([0,0,1])
      difference() {
       cylinder(d=spring_d+spring_d_clearance,h=lsd,$fn=2*PI*spring_d);
       sphere(d=spring_d*3/4,$fn=PI*spring_d);
      }
     }//rotate-translate
    }//difference
    // bridging patch
    place_idler()
    translate([0,0,lever_thickness/2-mount_screwhead_h])
    mirror([0,0,1])
    cylinder(d=mount_screwhead_d,h=layer_height);
   }//translate
  }//lever module
  
  module body() {
   difference() {
    union() {
    cylinder(d=gearbox_d,h=body_h,$fn=2*PI*gearbox_d);
     // finger and spring support
     fsw = gearbox_d/2+mount_screwhead_d/2;
     translate([-gearbox_d/2,0,0]) difference() {
      union() {
       hull() {
        translate([0,-longwing,ls_z])
        rotate([0,90,0])
        cylinder(d=max(lever_thickness,spring_d+spring_d_clearance+2*extrusion_width),h=fsw,$fn=2*PI*lever_thickness);
        hh=body_h-ls_z;
        translate([0,0,ls_z-lever_thickness/2])
        mirror([0,1,0]) cube(size=[fsw,longwing-hh+lever_thickness/sqrt(2),hh+lever_thickness/2]);
        hhh=ls_z;
        translate([0,0,0])
        mirror([0,1,0]) cube(size=[fsw,longwing-hhh+lever_thickness/sqrt(2),hhh+lever_thickness/2]);
       }
      }
      translate([0,-longwing,ls_z]) rotate([0,-90,0])
      finger_indent(d=lever_thickness-1,r=15);
     } // translate
     
     // pushfit bracket
     translate([0,0,filament_elevation])
     rotate([0,0,45]) translate([pulley_d/2,0,0])
     rotate([-90,0,0])
     translate([0,0,mount_d/sqrt(2)/2+mount_screw_d-gearbox_d/2/*TODO:*/])
     cylinder(r=min(body_h-filament_elevation,filament_elevation)/sin(60)-epsilon,h=pf_h(pf)+gearbox_d/2/*TODO:*/,$fn=6);
    }//union (first child of difference)
    // protrusion
    translate([0,0,-1])
    cylinder(d=protrusion_d+protrusion_tolerance_h,h=protrusion_h+protrusion_tolerance_v+1,$fn=2*PI*protrusion_d);
    // mount screw holes
    for(zr=[0:90:359]) rotate([0,0,zr]) translate([mount_d/2,0,0]) {
     translate([0,0,mount_screw_l-mounthole_depth/2-layer_height-1])
     mirror([0,0,1])
     cylinder(d=mount_screw_d+mount_screw_d_tolerance,
              h=mount_screw_l-mounthole_depth/2-layer_height+1,
              $fn=2*PI*mount_screw_d);
     translate([0,0,mount_screw_l-mounthole_depth/2])
     cylinder(d=mount_screwhead_d,h=body_h+1,$fn=2*PI*mount_screwhead_d);
    }//for
-   // pushfit threads
+   // pushfit
    translate([0,0,filament_elevation])
    rotate([0,0,45]) translate([pulley_d/2,0,0])
    rotate([-90,0,0])
    translate([0,0,mount_d/sqrt(2)/2+mount_screw_d+epsilon])
    rotate([0,0,180]) {
     pushfit(pf);
     cylinder(d=filament_guide_d,h=gearbox_d,center=true,$fn=2*PI*filament_guide_d);
     translate([0,-filament_guide_d/2/sqrt(2),0])
     rotate([0,0,45])
     cube(size=[filament_guide_d/2,filament_guide_d/2,gearbox_d],center=true);
    }
    // pulley
    cylinder(d=pulley_d+pulley_clearance,h=body_h+1,$fn=2*PI*(pulley_d+pulley_clearance));
    // leverspace
    hull() for(x=[0,gearbox_d])
    rotate([0,0,45])
    translate([x,0,ls_z-ls_h/2])
    cylinder(d=idler_d+idler_clearance,h=ls_h,$fn=2*PI*idler_d);
    
    a=cos(45)*(pulley_d+idler_d)/2;
    b=mount_d/2-a;
    x=sqrt(pow(a,2)+pow(b,2));
    translate([mount_d/2,0,ls_z])
    intersection() {
     r = x+idler_d/2+1;/* TODO: */
     cylinder(r=r,h=ls_h,center=true);
     translate([-r-1,0,-1]) cube(size=[2*r+2,r+1,ls_h+2]);
    }
    
    rotate([0,0,-45])
    translate([0,0,ls_z-ls_h/2])
    cube(size=[gearbox_d,gearbox_d,lever_thickness+lever_v_clearance]);
    translate([0,0,ls_z-ls_h/2]) {
     translate([mount_screwhead_d/2,0,0])
     mirror([0,1,0])
     cube(size=[gearbox_d,gearbox_d/2+1,lever_thickness+lever_v_clearance]);
    }
    //translate([-mount_d/2,-longwing,filament_elevation])
    translate([mount_d/2,-longwing,filament_elevation])
    rotate([0,-90,0]) difference() {
     cylinder(d=spring_d+spring_d_clearance,h=spring_lc+spring_dl,$fn=PI*spring_d);
     translate([0,0,spring_lc+spring_dl]) sphere(d=spring_d*3/4,$fn=PI*spring_d);
    }
    //sphere(d=spring_d*3/4,$fn=PI*spring_d);
    *difference() {
     // spring support
     translate([0,-longwing,filament_elevation])
     sphere(d=spring_d*3/4,$fn=PI*spring_d);
    }
     
   }//difference
 
   intersection() {
    difference() {
     translate([0,0,ls_z-ls_h/2-epsilon])
     cylinder(d=gearbox_d,h=ls_h+2*epsilon,$fn=2*PI*gearbox_d);
     cylinder(d=pulley_d+pulley_clearance,h=body_h+1,$fn=2*PI*(pulley_d+pulley_clearance));
    }
    // supports
    // TODO: hardcoded stuff below…
    if(false) { // parallel
     for(y=[-gearbox_d:4:gearbox_d])
      translate([0,y-extrusion_width/2,0])
      cube(size=[gearbox_d,extrusion_width,body_h]);
    }else{ // radial
     for(zr=[-65:(65+50)/7:50])
      rotate([0,0,zr]) translate([0,-extrusion_width/2,0])
      cube(size=[gearbox_d,extrusion_width,body_h]);
    }
   }
 
  }//body module
 
  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,$fn=pulley_d*PI*2);
      translate([0,0,-1]) difference() {
       cylinder(d=bore_d+knob_bore_d_tolerance,h=knob_bore_l+2);
       translate([-bore_d/2-1,bore_dd-bore_d/2+knob_bore_d_tolerance/2,-1])
       cube([bore_d+2,bore_d/2,knob_bore_l+4]);
      }
     }
    }
    difference() {
     union() {
      cylinder(d1=gearbox_d-2*ch,d2=gearbox_d,h=ch+epsilon,$fn=PI*gearbox_d*2);
      translate([0,0,ch])
      cylinder(d=gearbox_d,h=knob_h-2*ch+epsilon,$fn=PI*gearbox_d*2);
      translate([0,0,knob_h-ch])
      cylinder(d1=gearbox_d,d2=gearbox_d-2*ch,h=ch,$fn=PI*gearbox_d*2);
     }
     for(a=[0:360/knob_indents:359]) rotate([0,0,a])
      translate([0,gearbox_d/2,-1])