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support threaded teardrop holes (passthrough to new teardrop support

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in threaded rod)
This commit is contained in:
Adrian Mariano 2024-01-17 19:34:07 -05:00
parent b5558009d1
commit d76d693a33
1 changed files with 3 additions and 5 deletions
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8
screws.scad
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@ -588,8 +588,7 @@ module screw(spec, head, drive, thread, drive_size,
assert(is_finite(length) && length>0, "Must specify positive screw length")
assert(is_finite(_shoulder_len) && _shoulder_len>=0, "Must specify a nonegative shoulder length")
assert(is_finite(_shoulder_diam) && _shoulder_diam>=0, "Must specify nonnegative shoulder diameter")
assert(is_undef(user_thread_len) || (is_finite(user_thread_len) && user_thread_len>=0), "Must specify nonnegative thread length")
assert(!_teardrop || pitch==0);
assert(is_undef(user_thread_len) || (is_finite(user_thread_len) && user_thread_len>=0), "Must specify nonnegative thread length");
sides = max(pitch==0 ? 3 : 12, segs(nominal_diam/2));
head_height = headless || flathead ? 0
: counterbore==true || is_undef(counterbore) || counterbore==0 ? struct_val(spec, "head_height")
@ -716,7 +715,7 @@ module screw(spec, head, drive, thread, drive_size,
pitch = struct_val(threadspec, "pitch"),
l=thread_len+eps_thread, left_handed=false, internal=_internal,
bevel1=bevel1,
bevel2=bevel2,
bevel2=bevel2,teardrop=_teardrop,
blunt_start=blunt_start, blunt_start1=blunt_start1, blunt_start2=blunt_start2,
$fn=sides, anchor=TOP);
}
@ -774,7 +773,7 @@ module screw(spec, head, drive, thread, drive_size,
// head = head type. See [screw heads](#subsection-screw-heads) Default: none
// ---
// thread = thread type or specification for threaded masks, true to make a threaded mask with the standard threads, or false to make an unthreaded mask. See [screw pitch](#subsection-standard-screw-pitch). Default: false
// teardrop = if true produce teardrop hole. Only compatible with clearance holes, not threaded. Default: false
// teardrop = if true produce teardrop hole. Default: false
// oversize = amount to increase diameter of the screw hole (hole and countersink). A scalar or length 2 vector. Default: use computed tolerance
// hole_oversize = amount to increase diameter of the hole. Overrides the use of tolerance and replaces any settings given in the screw specification.
// head_oversize = amount to increase diameter of head. Overrides the user of tolerance and replaces any settings given in the screw specification.
@ -852,7 +851,6 @@ module screw_hole(spec, head, thread, oversize, hole_oversize, head_oversize,
counterbore = default(counterbore, default_counterbore);
dummy = _validate_screw_spec(screwspec);
threaded = thread==true || (is_finite(thread) && thread>0) || (is_undef(thread) && struct_val(screwspec,"pitch")>0);
dummy2 = assert(!threaded || !teardrop, "Cannot make threaded teardrop holes");
oversize = force_list(oversize,2);
hole_oversize = first_defined([hole_oversize, oversize[0],struct_val(screwspec,"shaft_oversize")]);
head_oversize = first_defined([head_oversize, oversize[1],struct_val(screwspec,"head_oversize")]);