grey/BOSL2
1
0
Fork 0
mirror of https://github.com/BelfrySCAD/BOSL2.git synced 2025-01-06 04:09:47 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge pull request #588 from revarbat/revarbat_dev

Browse source 
Added starts support for helix_thread()
This commit is contained in:
Revar Desmera 2021-06-23 18:08:34 -07:00 committed by GitHub
commit b292797d25
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 6 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
threading.scad
View file

@ -22,6 +22,7 @@
// twist = Number of degrees to rotate thread around. Default: 720 degrees. // twist = Number of degrees to rotate thread around. Default: 720 degrees.
// --- // ---
// profile = If an asymmetrical thread profile is needed, it can be specified here. // profile = If an asymmetrical thread profile is needed, it can be specified here.
// starts = The number of thread starts. Default: 1
// left_handed = If true, thread has a left-handed winding. // left_handed = If true, thread has a left-handed winding.
// internal = If true, invert threads for internal threading. // internal = If true, invert threads for internal threading.
// d1 = Bottom inside base diameter of threads. // d1 = Bottom inside base diameter of threads.
@ -46,11 +47,11 @@
// thread_helix(d=10, pitch=2, thread_depth=0.75, thread_angle=15, twist=900, $fn=72); // thread_helix(d=10, pitch=2, thread_depth=0.75, thread_angle=15, twist=900, $fn=72);
module thread_helix( module thread_helix(
d, pitch=2, thread_depth, thread_angle=15, twist=720, d, pitch=2, thread_depth, thread_angle=15, twist=720,
profile, left_handed=false, internal=false, profile, starts=1, left_handed=false, internal=false,
d1, d2, higbee, higbee1, higbee2, d1, d2, higbee, higbee1, higbee2,
anchor, spin, orient anchor, spin, orient
) { ) {
h = pitch*twist/360; h = pitch*starts*twist/360;
r1 = get_radius(d1=d1, d=d, dflt=10); r1 = get_radius(d1=d1, d=d, dflt=10);
r2 = get_radius(d1=d2, d=d, dflt=10); r2 = get_radius(d1=d2, d=d, dflt=10);
tdp = thread_depth / pitch; tdp = thread_depth / pitch;
@ -73,7 +74,9 @@ module thread_helix(
dir = left_handed? -1 : 1; dir = left_handed? -1 : 1;
idir = internal? -1 : 1; idir = internal? -1 : 1;
attachable(anchor,spin,orient, r1=r1, r2=r2, l=h) { attachable(anchor,spin,orient, r1=r1, r2=r2, l=h) {
spiral_sweep(pline, h=h, r1=r1, r2=r2, twist=twist*dir, higbee=higbee, higbee1=higbee1, higbee2=higbee2, anchor=CENTER); zrot_copies(n=starts) {
spiral_sweep(pline, h=h, r1=r1, r2=r2, twist=twist*dir, higbee=higbee, higbee1=higbee1, higbee2=higbee2, anchor=CENTER);
}
children(); children();
} }
} }