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ajandClaude Opus 5.5
667beb4334
Edits in the Cutting Parameters dialog only reached user settings, while a plate's stored parameters took priority, so a change was lost on any planned plate unless Apply succeeded. User settings now win; a plate's own are the fallback when none are saved or readable. WinForms tests saved to the real user-settings.json, and with user settings winning a test's lead-ins would feed real planning, so they now use a temp file and skip the legacy settings carry-over. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
56 lines
3.4 KiB
Markdown
56 lines
3.4 KiB
Markdown
# Machine cutting defaults
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A nest's assigned machine (`Nest.Machine`, see [nest file format](nest-file-format.md))
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supplies the starting lead-ins, lead-outs, kerf and cut-off settings for the nest's
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material and thickness, from that machine's Tools > Machine Configuration entry (in
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Database mode, the server's [shared machines](shared-settings.md) once it holds them).
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`MachineCuttingDefaults` (OpenNest.Data) holds the mapping; the desktop applies it.
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## Lookup
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The machine's material must match the nest's material name, and its grade when the nest
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has one (otherwise the first grade on file). The thickness matches within 0.001 in after
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converting the nest's thickness to the machine's units, so a thickness rounded to three
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decimals (PEP stores 3/16 as 0.188) finds the machine's 0.1875; the nearest one wins. With no match, or no machine on
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file, nothing changes and the previous behavior applies. Lengths are converted from the
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machine's units to the nest's.
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## Lead-ins and lead-outs
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Plan Cutting and Place Lead-in start from the user's last applied parameters, with the machine's
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leads and kerf laid over them and the machine, material, grade and thickness recorded on the
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parameters. A plate's own parameters are used only when no user parameters are saved or readable,
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so an edit reaches nests already planned. When the last parameters
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already record the same machine, material, grade and thickness, the machine's settings are not
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laid over them again, so lead and tab edits made for that job stick; the cutting panel keeps the
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record (and the kerf) through an edit. Plan Cutting saves its settings as the last parameters as
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soon as its settings dialog is accepted, not only on Apply. Changing the settings, machine,
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material or thickness does not rewrite the leads a plate was planned with: its programs and
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stored parameters stay until a plan is applied.
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Each thickness holds a lead-in and lead-out for outside cuts (the Outside Cuts tab, external
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contours) and, optionally, its own pair for inside cuts (the Inside Cuts tab, internal contours,
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full circles included). Inside cuts use the outside pair until "Same as outside cuts" is cleared,
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which starts them from a copy of it; configurations saved before the split have no inside pair
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and keep applying one pair to both. Both tabs use the shared `LeadsEditor` control that Cutting
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Settings uses, without the fields the configuration cannot hold (an arc's sweep; a clean hole's kerf,
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which comes from the thickness). Types map as follows:
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| Machine type | Lead-in |
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|---|---|
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| None | none |
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| Line | line (length, angle) |
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| Arc | arc (radius; the default 180-degree half-circle sweep) |
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| Line + Arc | line-arc (length, radius, angle) |
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| Clean Hole | clean hole (length, radius, the thickness's kerf), inside cuts only; an outside Clean Hole (older configurations) keeps the external lead-in |
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| Line + Line | not offered; an older configuration's is not mapped (it has no second segment): the lead-in it would set is kept |
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Lead-outs map None, Line (length, angle) and Arc (radius); any other type is none.
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## Cut-offs
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The plate view's part clearance, overtravel, minimum segment length and direction come from
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the machine's cut-off settings when a nest opens, when Nest > Machine changes the machine and
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after Nest > Edit saves. The head-locked overcut choice is kept. Existing cut-offs are not
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regenerated at that moment; they follow the settings the next time they regenerate.
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