| -rw-r--r-- | another.scad | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/another.scad b/another.scad index 6afa9ef..6ef7299 100644 --- a/another.scad +++ b/another.scad @@ -11,6 +11,7 @@ module the_extruder( gearbox_d = 36, mount_d = 28, // the distance between opposite mounting holes mounthole_depth = 5, + mounthole_min_depth = 3, mounthole_max_depth = 4, protrusion_d = 22, protrusion_h = 2.2, // the dimensions of the protrusion on top of gearbox bore_d = 8, bore_l = 17.6, bore_dd = 7, @@ -62,6 +63,8 @@ module the_extruder( st_nut_d_tolerance=.2,/* TODO: make it st_nut_w_tolerance */ st_screw_d_tolerance=.5, + min_z_shell = 4*layer_height, // the very minimal shell thickness along z-axis. + what="lever", // lever|body|knob|springpad|* left=false, vitamins = true, @@ -80,10 +83,14 @@ module the_extruder( ri = sqrt( pow(h_,2) + pow(mount_d/2-h_,2) ); spring_dl = idler_travel*longwing/ri; + 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 - body_h = max(protrusion_h+bore_l,mount_screw_l-mounthole_depth/2+mount_screwhead_h,ls_z*2); 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 mirrorleft() { mirror([left?0:1,0,0]) children(); @@ -288,12 +295,12 @@ module the_extruder( 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-(bridges?layer_height:-epsilon)]) + translate([0,0,mount_screw_l-mount_depth-(bridges?layer_height:-epsilon)]) mirror([0,0,1]) cylinder(d=mount_screw_d+mount_screw_d_tolerance, - h=mount_screw_l-mounthole_depth/2+1, + h=mount_screw_l-mount_depth+1, $fn=fnd*(mount_screw_d+mount_screw_d_tolerance)); - translate([0,0,mount_screw_l-mounthole_depth/2]) + translate([0,0,mount_screw_l-mount_depth]) cylinder(d=mount_screwhead_d,h=body_h+1,$fn=fnd*mount_screwhead_d); }//for // pushfit |