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Fix bug in nut beveling, fix teardrop bugs, add chamfer to teardrop,

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add tap and self tap screw hole tolerances.
This commit is contained in:
Adrian Mariano
2022-10-25 22:33:22 -04:00
parent 3dd605f87b
commit 66fce69e4d
4 changed files with 177 additions and 129 deletions
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63
threading.scad
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@@ -143,7 +143,7 @@ module threaded_rod(
// bevel = if true, bevel the outside of the nut. Default: true for hex nuts, false for square nuts
// bevel1 = if true, bevel the outside of the nut bottom.
// bevel2 = if true, bevel the outside of the nut top.
// bevang = set the angle for the outside nut bevel. Default: 15
// bevang = set the angle for the outside nut bevel. Default: 30
// ibevel = if true, bevel the inside (the hole). Default: true
// ibevel1 = if true bevel the inside, bottom end.
// ibevel2 = if true bevel the inside, top end.
@@ -157,13 +157,13 @@ module threaded_rod(
function threaded_nut(
nutwidth, id, h,
pitch, starts=1, shape="hex", left_handed=false, bevel, bevel1, bevel2, id1,id2,
ibevel1, ibevel2, ibevel, bevang=15, thickness, height,
ibevel1, ibevel2, ibevel, bevang=30, thickness, height,
anchor, spin, orient
)=no_function("threaded_nut");
module threaded_nut(
nutwidth, id, h,
pitch, starts=1, shape="hex", left_handed=false, bevel, bevel1, bevel2, id1,id2,
ibevel1, ibevel2, ibevel, bevang=15, thickness, height,
ibevel1, ibevel2, ibevel, bevang=30, thickness, height,
anchor, spin, orient
) {
dummy1=
@@ -350,7 +350,7 @@ module trapezoidal_threaded_rod(
// bevel = if true, bevel the outside of the nut. Default: true for hex nuts, false for square nuts
// bevel1 = if true, bevel the outside of the nut bottom.
// bevel2 = if true, bevel the outside of the nut top.
// bevang = set the angle for the outside nut bevel. Default: 15
// bevang = set the angle for the outside nut bevel. Default: 30
// ibevel = if true, bevel the inside (the hole). Default: true
// ibevel1 = if true bevel the inside, bottom end.
// ibevel2 = if true bevel the inside, top end.
@@ -373,7 +373,7 @@ function trapezoidal_threaded_nut(
thread_depth, shape="hex",
left_handed=false,
starts=1,
bevel,bevel1,bevel2,bevang=15,
bevel,bevel1,bevel2,bevang=30,
ibevel1,ibevel2,ibevel,
thickness,height,
id1,id2,
@@ -388,7 +388,7 @@ module trapezoidal_threaded_nut(
thread_depth, shape="hex",
left_handed=false,
starts=1,
bevel,bevel1,bevel2,bevang=15,
bevel,bevel1,bevel2,bevang=30,
ibevel1,ibevel2,ibevel,
thickness,height,
id1,id2,
@@ -500,7 +500,7 @@ module acme_threaded_rod(
// bevel = if true, bevel the outside of the nut. Default: true for hex nuts, false for square nuts
// bevel1 = if true, bevel the outside of the nut bottom.
// bevel2 = if true, bevel the outside of the nut top.
// bevang = set the angle for the outside nut bevel. Default: 15
// bevang = set the angle for the outside nut bevel. Default: 30
// ibevel = if true, bevel the inside (the hole). Default: true
// ibevel1 = if true bevel the inside, bottom end.
// ibevel2 = if true bevel the inside, top end.
@@ -515,7 +515,7 @@ function acme_threaded_nut(
nutwidth, id, h, tpi, pitch,
starts=1,
left_handed=false,shape="hex",
bevel,bevel1,bevel2,bevang=15,
bevel,bevel1,bevel2,bevang=30,
ibevel,ibevel1,ibevel2,
height,thickness,
anchor, spin, orient
@@ -524,7 +524,7 @@ module acme_threaded_nut(
nutwidth, id, h, tpi, pitch,
starts=1,
left_handed=false,shape="hex",
bevel,bevel1,bevel2,bevang=15,
bevel,bevel1,bevel2,bevang=30,
ibevel,ibevel1,ibevel2,
height,thickness,
anchor, spin, orient
@@ -769,7 +769,7 @@ module buttress_threaded_rod(
// bevel = if true, bevel the outside of the nut. Default: true for hex nuts, false for square nuts
// bevel1 = if true, bevel the outside of the nut bottom.
// bevel2 = if true, bevel the outside of the nut top.
// bevang = set the angle for the outside nut bevel. Default: 15
// bevang = set the angle for the outside nut bevel. Default: 30
// ibevel = if true, bevel the inside (the hole). Default: true
// ibevel1 = if true bevel the inside, bottom end.
// ibevel2 = if true bevel the inside, top end.
@@ -782,14 +782,14 @@ module buttress_threaded_rod(
function buttress_threaded_nut(
nutwidth, id, h,
pitch, shape="hex", left_handed=false,
bevel,bevel1,bevel2,bevang=15,starts=1,
bevel,bevel1,bevel2,bevang=30,starts=1,
ibevel,ibevel1,ibevel2,height,thickness,
anchor, spin, orient
) = no_function("buttress_threaded_nut");
module buttress_threaded_nut(
nutwidth, id, h,
pitch, shape="hex", left_handed=false,
bevel,bevel1,bevel2,bevang=15,starts=1,
bevel,bevel1,bevel2,bevang=30,starts=1,
ibevel,ibevel1,ibevel2,height,thickness,
anchor, spin, orient
) {
@@ -907,7 +907,7 @@ module square_threaded_rod(
// bevel = if true, bevel the outside of the nut. Default: true for hex nuts, false for square nuts
// bevel1 = if true, bevel the outside of the nut bottom.
// bevel2 = if true, bevel the outside of the nut top.
// bevang = set the angle for the outside nut bevel. Default: 15
// bevang = set the angle for the outside nut bevel. Default: 30
// ibevel = if true, bevel the inside (the hole). Default: true
// ibevel1 = if true bevel the inside, bottom end.
// ibevel2 = if true bevel the inside, top end.
@@ -921,7 +921,7 @@ function square_threaded_nut(
nutwidth, id, h,
pitch,
left_handed=false,
bevel,bevel1,bevel2,bevang=15,
bevel,bevel1,bevel2,bevang=30,
ibevel,ibevel1,ibevel2,
height,thickness,
starts=1,
@@ -931,7 +931,7 @@ module square_threaded_nut(
nutwidth, id, h,
pitch,
left_handed=false,
bevel,bevel1,bevel2,bevang=15,
bevel,bevel1,bevel2,bevang=30,
ibevel,ibevel1,ibevel2,
height,thickness,
starts=1,
@@ -1277,7 +1277,7 @@ module generic_threaded_rod(
// bevel = if true, bevel the outside of the nut. Default: true for hex nuts, false for square nuts
// bevel1 = if true, bevel the outside of the nut bottom.
// bevel2 = if true, bevel the outside of the nut top.
// bevang = set the angle for the outside nut bevel. Default: 15
// bevang = set the angle for the outside nut bevel. Default: 30
// ibevel = if true, bevel the inside (the hole). Default: true
// ibevel1 = if true bevel the inside, bottom end.
// ibevel2 = if true bevel the inside, top end.
@@ -1296,7 +1296,7 @@ function generic_threaded_nut(
shape="hex",
left_handed=false,
starts=1,
bevel,bevel1,bevel2,bevang=15,
bevel,bevel1,bevel2,bevang=30,
ibevel, ibevel1, ibevel2,
id1,id2, height, thickness,
anchor, spin, orient
@@ -1310,7 +1310,7 @@ module generic_threaded_nut(
shape="hex",
left_handed=false,
starts=1,
bevel,bevel1,bevel2,bevang=15,
bevel,bevel1,bevel2,bevang=30,
ibevel, ibevel1, ibevel2,
id1,id2, height, thickness,
anchor, spin, orient
@@ -1332,19 +1332,11 @@ module generic_threaded_nut(
bevel1 = first_defined([bevel1,bevel,shape=="hex"?true:false]);
bevel2 = first_defined([bevel2,bevel,shape=="hex"?true:false]);
depth = -pitch*min(column(profile,1));
bevel_d=0.975;
IBEV=0.05;
vnf = linear_sweep(hexagon(id=nutwidth), height=h, center=true);
attachable(anchor,spin,orient, size=shape=="square" ? [nutwidth,nutwidth,h] : undef, vnf=shape=="hex" ? vnf : undef) {
difference() {
intersection(){
if (shape=="hex")
vnf_polyhedron(vnf);
else
cuboid([nutwidth,nutwidth,h]);
if (bevel2) cyl(h=h+.01, d2=nutwidth*bevel_d,d1=nutwidth*bevel_d+h/tan(bevang), $fn=64);
if (bevel1) down(.01) cyl(h=h+.01, d1=nutwidth*bevel_d,d2=nutwidth*bevel_d+h/tan(bevang), $fn=64);
}
_nutshape(nutwidth,h, shape,bevel1,bevel2);
if (pitch==0)
cyl(l=h+extra, d1=full_id1+4*get_slop(), d2=full_id2+4*get_slop(), chamfer1=ibevel1?-IBEV*full_id1:undef, chamfer2=ibevel2?-IBEV*full_id2:undef);
else
@@ -1364,6 +1356,23 @@ module generic_threaded_nut(
}
module _nutshape(nutwidth, h, shape, bevel1, bevel2)
{
bevel_d=0.9;
intersection(){
if (shape=="hex")
cyl(d=nutwidth, circum=true, $fn=6, l=h, chamfer1=bevel1?0:nutwidth*.01, chamfer2=bevel2?0:nutwidth*.01);
//vnf_polyhedron(vnf);
else
cuboid([nutwidth,nutwidth,h],chamfer=nutwidth*.01, except=[if (bevel1) BOT, if(bevel2) TOP]);
fn = quantup(segs(r=nutwidth/2),shape=="hex"?6:4);
d = shape=="hex" ? 2*nutwidth/sqrt(3) : sqrt(2)*nutwidth;
chamfsize = (d-nutwidth)/2/bevel_d;
cyl(d=d*.99,h=h+.01,realign=true,circum=true,$fn=fn,chamfer1=bevel1?chamfsize:0,chamfer2=bevel2?chamfsize:0,chamfang=90-30);
}
}
// Module: thread_helix()
// Usage:
// thread_helix(d, pitch, [thread_depth], [flank_angle], [twist], [profile=], [left_handed=], [higbee=], [internal=]);