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authorMichael Krelin <hacker@klever.net>2018-08-03 16:58:16 (UTC)
committer Michael Krelin <hacker@klever.net>2018-08-03 16:58:16 (UTC)
commit741e17207d7e98237eee3b2f1957ab21f067f153 (patch) (side-by-side diff)
tree570fdb8f4c4c3b8f3e682704fdf7a30a3aa69b1e
parent1d8c4abb1fb534d52aa4d221aa3052b77f473932 (diff)
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another: thicker shell to support spring nut
Diffstat (more/less context) (ignore whitespace changes)
-rw-r--r--another.scad10
1 files changed, 5 insertions, 5 deletions
diff --git a/another.scad b/another.scad
index 7d2dfb3..efc553d 100644
--- a/another.scad
+++ b/another.scad
@@ -25,25 +25,25 @@ module the_extruder(
// filament path properties
filament_d = 1.75,
filament_path_d = 2,
filament_guide_d = 4, // PTFE filament guide diameter
// knob properties
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_shell = 4*extrusion_width,
+ st_thickshell = 8*extrusion_width, st_thinshell = 4*extrusion_width,
// screw it
mount_screw_d = 3.1, mount_screw_l = 20,
mount_screwhead_d=6, mount_screwhead_h=3,
pf = pushfit_embeddest,
// empty spaces
idler_travel = 3, // how far should idler travel when pressed
idler_clearance=1,
pulley_clearance=2,
lever_v_clearance=.7, // vertical clearance for the lever
@@ -200,35 +200,35 @@ module the_extruder(
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]);
hhh=ls_z;
translate([0,0,0])
mirror([0,1,0]) cube(size=[fsw,longwing-hhh+lever_thickness/sqrt(2),hhh+lever_thickness/2]);
}
}
translate([0,-longwing,ls_z]) rotate([0,-90,0]) {
if(!tensioner) finger_indent(d=lever_thickness-1,r=15); else {
if(debug) translate([0,-lever_thickness/2-1,-gearbox_d]) cube(size=[body_h/2+1,lever_thickness/2+1,gearbox_d+2]);
mirror([0,0,1]) {
- translate([0,0,st_shell])
+ translate([0,0,st_thickshell])
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=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])
+ translate([0,0,st_thickshell+st_nut_h+st_thinshell-epsilon])
cylinder(d1=st_screw_d,d2=bigd,
h=hf+epsilon, $fn=fnd*bigd);
- translate([0,0,st_shell+st_nut_h+st_shell+hf-epsilon])
+ translate([0,0,st_thickshell+st_nut_h+st_thinshell+hf-epsilon])
cylinder(d=bigd,h=fsw+1,$fn=fnd*bigd);
}
}
}
} // translate
// pushfit bracket
translate([0,0,filament_elevation])
rotate([0,0,45]) translate([pulley_d/2,0,0])
rotate([-90,0,0])
translate([0,0,mount_d/sqrt(2)/2+mount_screw_d-gearbox_d/2/*TODO:*/])
cylinder(r=min(body_h-filament_elevation,filament_elevation)/sin(60)-epsilon,h=pf_h(pf)+gearbox_d/2/*TODO:*/,$fn=6);
@@ -326,25 +326,25 @@ module the_extruder(
for(zr=[-65:(65+50)/7:50])
rotate([0,0,zr]) translate([0,-extrusion_width/2,0])
cube(size=[gearbox_d,extrusion_width,body_h]);
}
}
}//body module
module springpad() {
smalld=st_screw_d+2*extrusion_width;
bigd = spring_d+spring_d_clearance/2;
hf = (bigd-smalld)/2;
- translate([-gearbox_d/2+st_shell+st_nut_h+st_shell+smalld,-longwing,filament_elevation])
+ translate([-gearbox_d/2+st_thickshell+st_nut_h+st_thinshell+1,-longwing,filament_elevation])
rotate([0,90,0]) difference() {
union() {
cylinder(d1=smalld,d2=bigd,h=hf,$fn=fnd*bigd);
translate([0,0,hf-epsilon])
cylinder(d=bigd,h=hf*2,$fn=fnd*bigd);
translate([0,0,3*hf])
sphere(d=spring_d*3/4,$fn=fnd*spring_d*3/4);
}
translate([0,0,-epsilon])
cylinder(d=st_screw_d,h=2*hf+epsilon,$fn=fnd*st_screw_d);
}
}