| -rw-r--r-- | another.scad | 29 |
1 files changed, 16 insertions, 13 deletions
diff --git a/another.scad b/another.scad index 297c1fc..ed18874 100644 --- a/another.scad +++ b/another.scad @@ -32,16 +32,17 @@ module the_extruder( knob_h = 10, knob_bore_l = 4, knob_indent_d = 4, knob_indents = 12, // spring tensioner st_nut_d = 9, st_nut_h = 4, st_screw_d = 5, st_thickshell = 8*extrusion_width, st_thinshell = 2*extrusion_width, + st_split_w = 4*extrusion_width, // screw it mount_screw_d = 3.1, mount_screw_l = 20, mount_screwhead_d=6, mount_screwhead_h=3, idler_screw_d = 3, idler_screwhead_d=6, idler_screwhead_h=3, pf = pushfit_embeddest, @@ -232,17 +233,17 @@ module the_extruder( cylinder(d=gearbox_d,h=body_h,$fn=fnd*gearbox_d); // spring tensioner part translate([-gearbox_d/2,0,0]) hull() { translate([0,-longwing,ls_z]) rotate([0,90,0]) cylinder(d=lever_thickness,h=fsw,$fn=fnd*lever_thickness); hh=body_h-ls_z; translate([0,0,ls_z]) - mirror([0,1,0]) cube(size=[fsw,longwing+(st_thinshell+st_split_w_tolerance)/2+st_thickshell,body_h-ls_z]); + mirror([0,1,0]) cube(size=[fsw,longwing+(st_split_w+st_split_w_tolerance)/2+st_thickshell,body_h-ls_z]); hhh=ls_z; translate([0,0,0]) mirror([0,1,0]) cube(size=[fsw,longwing-hhh+lever_thickness/sqrt(2),hhh+lever_thickness/2]); }//hull translate // pushfit bracket translate([0,0,filament_elevation]) rotate([0,0,45]) translate([pulley_d/2+filament_offset,0,0]) @@ -356,33 +357,35 @@ module the_extruder( 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, $fn=fnd*bigd); - translate([0,-(st_thinshell+st_split_w_tolerance)/2,0]) - cube(size=[body_h-ls_z+1,st_thinshell+st_split_w_tolerance,fsw+1]); + translate([0,-(st_split_w+st_split_w_tolerance)/2,0]) + cube(size=[body_h-ls_z+1,st_split_w+st_split_w_tolerance,fsw+1]); }//translate translate([0,0,st_thickshell+st_nut_h+st_nut_h_tolerance+st_thinshell+hf-epsilon]) cylinder(d=bigd,h=fsw+1,$fn=fnd*bigd); }//mirror }//translate // label label_thickness = 2*layer_height; label_len = len(label); - labelspace = [gearbox_d/2-mount_screwhead_d/2-min_xy_shell,longwing-(mount_screwhead_d-st_thinshell-st_split_w_tolerance)/2-2*min_xy_shell-mount_d/2]; - 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_thinshell+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"); + if(label_len) { + 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"); + }//if(label_len) }//difference }//body module module springpad() { smalld=st_screw_d+st_screw_d_tolerance+min_xy_shell; bigd = spring_d+spring_d_clearance/2; @@ -392,21 +395,21 @@ module the_extruder( 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,$fn=fnd*spring_d*3/4); l = body_h-ls_z; - w = st_thinshell; - hull() translate([0,-st_thinshell/2,0]) mirror([1,0,0]) { + w = st_split_w; + hull() translate([0,-st_split_w/2,0]) mirror([1,0,0]) { translate([0,0,w]) - cube(size=[l,st_thinshell,w]); - cube(size=[l-w,st_thinshell,2*w]); + cube(size=[l,st_split_w,w]); + cube(size=[l-w,st_split_w,2*w]); } } translate([0,0,-epsilon]) cylinder(d=st_screw_d+st_screw_d_tolerance,h=2*hf+epsilon,$fn=fnd*(st_screw_d+st_screw_d_tolerance)); } } module knob() { |