| -rw-r--r-- | another.scad | 61 |
1 files changed, 31 insertions, 30 deletions
diff --git a/another.scad b/another.scad index 302e314..872ff33 100644 --- a/another.scad +++ b/another.scad @@ -61,6 +61,8 @@ module the_extruder( tensioner = true, debug = false ) { + fnd = 2*PI; fnr = 2*fnd; + 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; @@ -86,10 +88,10 @@ module the_extruder( if(depth) { hh = (-4*pow(depth,2)+pow(d,2))/(8*depth); rr = depth+hh; - translate([0,0,hh]) sphere(r=rr,$fn=2*PI*rr); + translate([0,0,hh]) sphere(r=rr,$fn=fnr*rr); }else if(r) { hh=sqrt(pow(r,2)-pow(d,2)/4); - translate([0,0,hh]) sphere(r=r,$fn=2*PI*r); + translate([0,0,hh]) sphere(r=r,$fn=fnr*r); } } @@ -158,11 +160,11 @@ module the_extruder( } 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); + cylinder(d=mount_screwhead_d,h=mount_screwhead_h+1,$fn=fnd*mount_screwhead_d); } // mounting screw hole translate([mount_d/2,0,0]) - cylinder(d=mount_screw_d+mount_screw_d_tolerance,h=lever_thickness+2,center=true,$fn=2*PI*mount_screw_d); + cylinder(d=mount_screw_d+mount_screw_d_tolerance,h=lever_thickness+2,center=true,$fn=fnd*mount_screw_d); // lever end translate([mount_d/2,0,0]) rotate([0,90,0]) { @@ -170,8 +172,8 @@ module the_extruder( translate([0,-longwing,0]) mirror([0,0,1]) difference() { - cylinder(d=spring_d+spring_d_clearance,h=lsd,$fn=2*PI*spring_d); - sphere(d=spring_d*3/4,$fn=PI*spring_d); + cylinder(d=spring_d+spring_d_clearance,h=lsd,$fn=fnd*(spring_d+spring_d_clearance)); + sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4); } }//rotate-translate }//difference @@ -186,7 +188,7 @@ module the_extruder( module body() { difference() { union() { - cylinder(d=gearbox_d,h=body_h,$fn=2*PI*gearbox_d); + cylinder(d=gearbox_d,h=body_h,$fn=fnd*gearbox_d); // finger and spring support fsw = gearbox_d/2+mount_screwhead_d/2; translate([-gearbox_d/2,0,0]) difference() { @@ -194,7 +196,7 @@ module the_extruder( hull() { translate([0,-longwing,ls_z]) rotate([0,90,0]) - cylinder(d=max(lever_thickness,spring_d+spring_d_clearance+2*extrusion_width),h=fsw,$fn=2*PI*lever_thickness); + cylinder(d=lever_thickness,h=fsw,$fn=fnd*lever_thickness); hh=body_h-ls_z; translate([0,0,ls_z-lever_thickness/2]) mirror([0,1,0]) cube(size=[fsw,longwing-hh+lever_thickness/sqrt(2),hh+lever_thickness/2]); @@ -211,14 +213,14 @@ module the_extruder( hull() for(o=[0,spring_d]) translate([0,-o,0]) rotate([0,0,30]) cylinder(d=st_nut_d,h=st_nut_h,$fn=6); - translate([0,0,-1]) cylinder(d=st_screw_d,h=fsw+2,$fn=st_screw_d*PI*2); + translate([0,0,-1]) cylinder(d=st_screw_d,h=fsw+2,$fn=fnd*st_screw_d); bigd = spring_d+spring_d_clearance; hf = (bigd-st_screw_d)/2; translate([0,0,st_shell+st_nut_h+st_shell-epsilon]) cylinder(d1=st_screw_d,d2=bigd, - h=hf+epsilon, $fn=bigd*PI*2 ); + h=hf+epsilon, $fn=fnd*bigd); translate([0,0,st_shell+st_nut_h+st_shell+hf-epsilon]) - cylinder(d=bigd,h=fsw+1,$fn=bigd*PI*2); + cylinder(d=bigd,h=fsw+1,$fn=fnd*bigd); } } } @@ -233,16 +235,16 @@ module the_extruder( }//union (first child of difference) // protrusion translate([0,0,-1]) - cylinder(d=protrusion_d+protrusion_tolerance_h,h=protrusion_h+protrusion_tolerance_v+1,$fn=2*PI*protrusion_d); + cylinder(d=protrusion_d+protrusion_tolerance_h,h=protrusion_h+protrusion_tolerance_v+1,$fn=fnd*(protrusion_d+protrusion_tolerance_h)); // 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); + $fn=fnd*(mount_screw_d+mount_screw_d_tolerance)); translate([0,0,mount_screw_l-mounthole_depth/2]) - cylinder(d=mount_screwhead_d,h=body_h+1,$fn=2*PI*mount_screwhead_d); + cylinder(d=mount_screwhead_d,h=body_h+1,$fn=fnd*mount_screwhead_d); }//for // pushfit translate([0,0,filament_elevation]) @@ -251,18 +253,18 @@ module the_extruder( translate([0,0,mount_d/sqrt(2)/2+mount_screw_d+epsilon]) rotate([0,0,180]) { pushfit(pf); - cylinder(d=filament_guide_d,h=gearbox_d,center=true,$fn=2*PI*filament_guide_d); + cylinder(d=filament_guide_d,h=gearbox_d,center=true,$fn=fnd*filament_guide_d); translate([0,-filament_guide_d/2/sqrt(2),0]) rotate([0,0,45]) cube(size=[filament_guide_d/2,filament_guide_d/2,gearbox_d],center=true); } // pulley - cylinder(d=pulley_d+pulley_clearance,h=body_h+1,$fn=2*PI*(pulley_d+pulley_clearance)); + cylinder(d=pulley_d+pulley_clearance,h=body_h+1,$fn=fnd*(pulley_d+pulley_clearance)); // leverspace hull() for(x=[0,gearbox_d]) rotate([0,0,45]) translate([x,0,ls_z-ls_h/2]) - cylinder(d=idler_d+idler_clearance,h=ls_h,$fn=2*PI*idler_d); + cylinder(d=idler_d+idler_clearance,h=ls_h,$fn=fnd*(idler_d+idler_clearance)); a=cos(45)*(pulley_d+idler_d)/2; b=mount_d/2-a; @@ -285,9 +287,8 @@ module the_extruder( //translate([-mount_d/2,-longwing,filament_elevation]) if(!tensioner) translate([mount_d/2,-longwing,filament_elevation]) rotate([0,-90,0]) difference() { - cylinder(d=spring_d+spring_d_clearance,h=spring_lc+spring_dl,$fn=PI*spring_d); - translate([0,0,spring_lc+spring_dl]) sphere(d=spring_d*3/4,$fn=PI*spring_d); - } + cylinder(d=spring_d+spring_d_clearance,h=spring_lc+spring_dl,$fn=fnd*(spring_d+spring_d_clearance)); + translate([0,0,spring_lc+spring_dl]) sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4); } }//difference @@ -295,8 +296,8 @@ module the_extruder( if(supports) intersection() { difference() { translate([0,0,ls_z-ls_h/2-epsilon]) - cylinder(d=gearbox_d,h=ls_h+2*epsilon,$fn=2*PI*gearbox_d); - cylinder(d=pulley_d+pulley_clearance,h=body_h+1,$fn=2*PI*(pulley_d+pulley_clearance)); + cylinder(d=gearbox_d,h=ls_h+2*epsilon,$fn=fnd*gearbox_d); + cylinder(d=pulley_d+pulley_clearance,h=body_h+1,$fn=fnd*(pulley_d+pulley_clearance)); } // supports // TODO: hardcoded stuff below… @@ -320,12 +321,12 @@ module the_extruder( translate([-gearbox_d/2+st_shell+st_nut_h+st_shell+smalld,-longwing,filament_elevation]) rotate([0,90,0]) difference() { union() { - cylinder(d1=smalld,d2=bigd,h=hf,$fn=bigd*PI*2); + cylinder(d1=smalld,d2=bigd,h=hf,$fn=fnd*bigd); translate([0,0,hf-epsilon]) - cylinder(d=bigd,h=hf*2,$fn=bigd*PI*2); + cylinder(d=bigd,h=hf*2,$fn=fnd*bigd); } translate([0,0,-epsilon]) - cylinder(d=st_screw_d,h=2*hf+epsilon,$fn=st_screw_d*PI*2); + cylinder(d=st_screw_d,h=2*hf+epsilon,$fn=fnd*st_screw_d); } } @@ -334,7 +335,7 @@ module the_extruder( translate([0,0,body_h+epsilon]) { mirror([0,0,1]) translate([0,0,-epsilon]) { difference() { - cylinder(d=pulley_d,h=knob_bore_l,$fn=pulley_d*PI*2); + cylinder(d=pulley_d,h=knob_bore_l,$fn=fnd*pulley_d); translate([0,0,-1]) difference() { cylinder(d=bore_d+knob_bore_d_tolerance,h=knob_bore_l+2); translate([-bore_d/2-1,bore_dd-bore_d/2+knob_bore_d_tolerance/2,-1]) @@ -344,15 +345,15 @@ module the_extruder( } difference() { union() { - cylinder(d1=gearbox_d-2*ch,d2=gearbox_d,h=ch+epsilon,$fn=PI*gearbox_d*2); + cylinder(d1=gearbox_d-2*ch,d2=gearbox_d,h=ch+epsilon,$fn=fnd*gearbox_d); translate([0,0,ch]) - cylinder(d=gearbox_d,h=knob_h-2*ch+epsilon,$fn=PI*gearbox_d*2); + cylinder(d=gearbox_d,h=knob_h-2*ch+epsilon,$fn=fnd*gearbox_d); translate([0,0,knob_h-ch]) - cylinder(d1=gearbox_d,d2=gearbox_d-2*ch,h=ch,$fn=PI*gearbox_d*2); + cylinder(d1=gearbox_d,d2=gearbox_d-2*ch,h=ch,$fn=fnd*gearbox_d); } for(a=[0:360/knob_indents:359]) rotate([0,0,a]) translate([0,gearbox_d/2,-1]) - cylinder(d=knob_indent_d,h=knob_h+2,$fn=knob_indent_d*PI*2); + cylinder(d=knob_indent_d,h=knob_h+2,$fn=fnd*knob_indent_d); } } }//knob module |