| -rw-r--r-- | another.scad | 37 |
1 files changed, 32 insertions, 5 deletions
diff --git a/another.scad b/another.scad index fd73a61..83a4e43 100644 --- a/another.scad +++ b/another.scad @@ -352,83 +352,107 @@ module the_extruder( 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, $fn=fnd*bigd); translate([0,-(st_split_w+st_split_w_tolerance)/2,0]) hull() { cube(size=[body_h-ls_z-sp_ch-st_split_w_tolerance,st_split_w+st_split_w_tolerance,fsw+1]); translate([0,0,sp_ch+st_split_w_tolerance+1]) cube(size=[body_h-ls_z+1,st_split_w+st_split_w_tolerance,fsw+1]); } }//translate translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+hf-epsilon]) cylinder(d=bigd,h=fsw+1,$fn=fnd*bigd); }//mirror }//translate // label body_label(); + // scale + body_scale(); }//difference }//body module + module body_scale() { + scale_thickness = 2*layer_height; + nscales = 5; + x1 = -gearbox_d/2+fsw-st_h+st_w+st_bump*2-st_bump_tip/2; + x0 = -gearbox_d/2+st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+st_split_w+st_split_w_tolerance+st_bump_tip/2; + w0 = st_split_w+st_split_w_tolerance+2*(extrusion_width+2*extrusion_width); + w1 = 2*(longwing-gearbox_d/2-extrusion_width); + translate([0,-longwing,body_h-scale_thickness]) + difference() { + for(x=[x0:(x1-x0)/(nscales-1):x1]) let(w=w0+(w1-w0)*(x-x0)/(x1-x0)) + translate([x-st_bump_tip/2,-w/2,0]) + cube(size=[st_bump_tip,w,scale_thickness+epsilon]); + let(w=st_split_w+st_split_w_tolerance+extrusion_width) + translate([-gearbox_d/2,-w/2,-1]) + cube(size=[fsw,w,scale_thickness+2]); + } + } module body_label() { if(body_label) { label=body_label; label_thickness=body_label_thickness; label_len = len(label); 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"); }else sphere(d=epsilon); // to avoid makefile breakage } st_bump = 4*extrusion_width; st_bump_tip = 2*extrusion_width; + st_smalld = st_screw_d+st_screw_d_tolerance+min_xy_shell; + st_bigd = spring_d+spring_d_clearance/2; + st_hf = (st_bigd-st_smalld)/2; + st_h = max(st_hf*3,fsw-st_screw_l+st_hf); + st_w = sp_ch; 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 = max(hf*3,fsw-st_screw_l+hf); + smalld=st_smalld; + bigd = st_bigd; + hf = st_hf; + h = st_h; translate([-gearbox_d/2+fsw-h,-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,$fn=fnd*spring_d*3/4); l = body_h-ls_z; - w = sp_ch; + w = st_w; translate([0,-st_split_w/2,0]) mirror([1,0,0]) { hull() { translate([0,0,w+st_bump]) cube(size=[l+st_bump,st_split_w,w]); cube(size=[l-w,st_split_w,2*w]); } translate([l,0,w+st_bump]) hull() { cube(size=[st_split_w,st_split_w,st_bump]); translate([0,-st_bump+st_bump_tip,st_bump]) mirror([0,0,1]) cube(size=[st_split_w,st_split_w+2*(st_bump-st_bump_tip),st_bump_tip]); } } } translate([0,0,-epsilon]) cylinder(d=st_screw_d+st_screw_d_tolerance, h=min(st_screw_l,fsw-hf)-fsw+h+2*epsilon,$fn=fnd*(st_screw_d+st_screw_d_tolerance)); } } module knob() { ch = knob_indent_d/2; knob_bore_l = body_h-protrusion_h-pulley_elevation-pulley_h-knob_v_clearance; translate([0,0,body_h+epsilon]) { mirror([0,0,1]) translate([0,0,-epsilon]) { @@ -477,42 +501,45 @@ module the_extruder( // lever axis debug cutout translate([mount_d/2,0,-1]) rotate([0,0,-45]) cube(size=[gearbox_d-mount_d,gearbox_d-mount_d,body_h+knob_h+2]); // idler debug cutout translate([0,0,ls_z]) place_idler() rotate([0,0,-45]) translate([0,0,-lever_thickness/2-epsilon]) cube(size=[lsd*sqrt(2)/2+1,lsd*sqrt(2)/2+1, lever_thickness+2*epsilon]); // pushfit debug cutout place_idler() translate([-idler_d/2+filament_offset,0,ls_z]) cube(size=[gearbox_d/2,gearbox_d/2+pf_h(pf),body_h-ls_z+knob_h+1]); }//if debug }//difference } mirrorleft() debug() if(what=="lever") color("green",0.7) lever(); else if(what=="body") color("yellow",0.7) body(); else if(what=="body.label") color("brown",0.7) body_label(); + else if(what=="body.scale") color("brown",0.7) body_scale(); else if(what=="knob") color("red",0.7) knob(); else if(what=="knob.label") color("brown",0.7) knob_label(); else if(what=="springpad") color("blue",0.7) springpad(); else if(what=="both") { color("green",0.7) lever(); color("yellow",0.7) body(); color("brown",0.7) body_label(); + color("brown",0.7) body_scale(); }else{ color("green",0.7) lever(); color("yellow",0.7) body(); color("brown",0.7) body_label(); + color("brown",0.7) body_scale(); color("red",0.7) knob(); color("brown",0.7) knob_label(); color("blue",0.7) springpad(); } } the_extruder(what="*",left=false,debug=true); |