Every tapped hole now drills the tap maker's tabulated drill. ISO metric takes Yamawa YEU23's
drill size column for cutting taps (printed p.704, M coarse; pp.704 to 706, MF fine): M8 drills
6.8 mm and M12 10.3 mm, where the major less the pitch gave 6.75 and 10.25. A custom metric size
the table lacks keeps the major less the pitch. UNC/UNF (Guhring), G, Rp, Rc and NPT (Yamawa)
were tabulated already. The Thread command's suggested hole for a metric size follows.
The Hole dialog's Tap drill diameter is now a field, the tap maker's drill by default, and the
command's `diameter` with a thread is checked the same way: a drill is accepted from the
internal thread's standard minor diameter (or the tap maker's drill where that lies below it:
Rp, Rc, NPT) to 5% over the tap maker's drill. Outside that the command names the range and
why. The field's tooltip gives the drill, the minor diameter and the range. Presets keep a
chosen drill.
A saved design keeps the diameter it stored, so it builds as before, and editing such a hole
keeps its drill: no preference and no format change. Scripts that give a thread without a
diameter drill the new default; ladder 05/007, 11/003 and rig case threads/2115 follow
analytically, and their golden entries are re-measured from runs (tier 05 re-sorted by time).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LUXeKMoxpM7Vuv8Rb6E3K2
A thread of some length ran from "the end of the face nearest the pick", a coin toss for a
pick in the middle (rig 602's 4 mm thread meant for the free bottom end ran at the head end,
cutting 1.17 mm into the hex), and every thread end at a face end got a one-pitch overrun,
which at a shoulder gouged the material past it (ladder 06/004 cut 0.9% of its volume out of
the collar).
- kernel: material_in_ring, the exact intersection of a body with a ring about a cylinder
face's axis, by an SMLib boolean.
- doc: a face end is free when no material lies past it, over the span the groove's one-pitch
overrun reaches beyond its first pitch, within the radii the groove cuts (a cap, a chamfer
the groove runs out through, a counterbore). At a free end the groove runs out as before; at
a closed one (a shoulder, a head, a blind hole's bottom) it stops with its widest part clear
of it; inside the face it stops square.
- doc: a thread of some length starts at the end nearest `from`, else at the face's only free
end, else at the end the pick lies within a third of the face of; a pick in the middle of a
face whose ends are alike is refused, naming `from`. A length as long as the face runs the
whole face. `up_to` a plane or a point's place along the axis. New fields `from`, `up_to`
default to none, so saved threads keep their meaning where it was not a coin toss.
- engine: solid.thread takes extent (full|length|up_to), from and up_to.
- ladder 06/003 (now with `from`), 004 and 007 are graded by volume and centre of mass in
closed form (a square stop inside material removes exactly length/P turns, the section being
symmetric); rig 602's method says why the thread is at the bottom, tolerance 0.02%.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cases from the issues filed after #4160, each a synthetic recipe with its own answer
(analysis or invariants); every other issue in the range is listed with why it was skipped.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cases from the issues filed after #4160, each a synthetic recipe with its own answer
(analysis or invariants); every other issue in the range is listed with why it was skipped.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cases from the issues filed after #4160, each a synthetic recipe with its own answer
(analysis or invariants); every other issue in the range is listed with why it was skipped.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Cases from the issues filed after #4160, each a synthetic recipe with its own answer
(analysis or invariants); every other issue in the range is listed with why it was skipped.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
The kernel runs exact helical sweeps and never resizes; the check that
refuses a thread off its hole's or shaft's size is the engine's sugar
(AGENTS.md). So the seven cases (995, 1443, 2152, 2969, 3366, 2369,
2705) go back to expecting that refusal and its message, as 1375e905 had
them, reversing 1588dd70.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2822, 3952 and 4149 cut long modelled threads into filleted or revolved
bodies; each takes minutes on today's kernel, so they get timeout_s 600
instead of the default 180.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2969's description named another product's behaviour; 1443's and 2152's
still described the refusal. Each now says the hole is drawn at the
thread's nominal size and gets the fitted thread.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Reverts 1375e905. A modelled thread fits by default: a hole too wide for it
is filled to the tap drill, a shaft too thick is turned down to the major
diameter, so the seven cases (995, 1443, 2152, 2969, 3366, 2369, 2705) go
back to expecting the fitted thread and its volume.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A modelled thread never changes the size of the hole or shaft it is on
(#1018, #2853): one that isn't the thread's size is refused, naming the
size to use. The seven cases that expected the hole filled to the tap
drill or the shaft turned down to the major diameter (995, 1443, 2152,
2969, 3366, 2369, 2705) now expect that refusal, with its numbers worked
out from ISO 68-1 and the message in `refusal`. An opt-in fit option, if
it comes, gets cases of its own.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
An M8x1 thread in a 7 mm hole, and three booleans of finely faceted
prisms (1000 and 1200 flat faces) with planar and curved partners, each
with a closed-form volume. Three auto-reports without geometry are
listed in skipped.json.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
The rest of the thread cases (holes at the nominal size, shafts and holes
off the thread's size, the crash and sketch-attachment repros) and the
triage of the sources that are not kernel geometry.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
External and internal modelled threads, tapped holes and threads beside
other features, each graded against the ISO 68-1 groove volume (Pappus)
and the part's own closed-form volume.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
jyviko