| -rw-r--r-- | another.scad | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/another.scad b/another.scad index f4e8904..23243d9 100644 --- a/another.scad +++ b/another.scad @@ -92,6 +92,15 @@ module the_extruder( 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); + $fn = dd*fnd; + cylinder(d=dd,h=h,center=center); + if(angle>0) translate([0,0,center?-h/2:0]) + rotate([0,0,angle]) + cube(size=[d/2,d/2,h]); + } + module mirrorleft() { mirror([left?0:1,0,0]) children(); } @@ -164,14 +173,11 @@ module the_extruder( }//union // filament path - place_idler() { - translate([-idler_d/2-idler_filament_offset,0,0]) rotate([90,0,0]) { - cylinder(d=filament_path_d,h=3*gearbox_d,center=true,$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); - }//rotate translate - translate([-idler_d/2-idler_filament_offset,0,0]) - rotate([90,0,0]) + place_idler() + translate([-idler_d/2-idler_filament_offset,0,0]) + rotate([90,0,0]) { + mirror([0,1,0]) + teardrop(d=filament_path_d,h=3*gearbox_d,center=true); translate([0,0, sqrt(2)*(mount_d-pulley_d+lsd)/2 ]) { @@ -179,9 +185,9 @@ module the_extruder( h=filament_path_d,$fn=2*filament_path_d*fnd); translate([0,0,filament_path_d-epsilon]) cylinder(d=2*filament_path_d,h=lsd,$fn=2*filament_path_d*fnd); - } - }//place_idler - + }//translate + }//rotate translate place_idler + // idler space and mounting hole place_idler() { difference() { @@ -310,10 +316,7 @@ 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,$fn=fnd*filament_guide_d); - translate([0,-filament_guide_d/2/sqrt(2),0]) - rotate([0,0,45]) - cube(size=[filament_guide_d/2,filament_guide_d/2,gearbox_d],center=true); + mirror([0,1,0]) teardrop(d=filament_guide_d,h=gearbox_d,center=true); }//rotate translate rotate translate rotate translate // pulley cylinder(d=pulley_d+pulley_d_clearance,h=body_h+1,$fn=fnd*(pulley_d+pulley_d_clearance)); |