Repeat Job Looks Different? Compare a Parameter Snapshot
Stop retuning and first compare a saved parameter snapshot with the last accepted job.
Start with the decision, not a setting
A July 2026 user reported that settings changed without notice and damaged a repeat result; a compact personalization workflow needs a reconstructable snapshot.
The useful method here is before/after evidence card recording file ID, layer values, focus method, blank lot, fixture, and software version before any corrective change.
Record the comparison that can change the answer
| Field | Last accepted | Current repeat | Action |
|---|---|---|---|
| File and layer ID | A-17 / Name-Fill | Record current IDs | Restore only from approved copy |
| Focus method | Gauge + fixture F3 | Record actual method | Re-seat and reframe if different |
| Blank lot | C2406 | Record package lot | Use retained coupon if changed |
| Software state | Version and device profile | Export current state | Preserve both snapshots |
Follow the evidence in sequence
- Freeze the current job without editing it.
- Export the current layer and device values.
- Place them beside the last accepted snapshot.
- Change only the first proven difference and run an eligible retained coupon.
TYVOK P2 facts for file revision and layer values
The live P2 page describes a compact 450 nm blue-diode galvo machine; it is not a fiber or CO2 system; see the current TYVOK P2 configuration.
References for focus method and fixture ID
- Compare the retained coating lot
- Build a customer-item intake record
Buyer questions about file revision and layer values
Did the file change or only the machine values?
Compare the file ID, layer IDs, and saved values first; a matching filename is not proof that the contents match.
Can one accepted old-lot coupon still be reproduced?
Yes. A retained old-lot coupon helps separate a stock change from a file or setup change, but only for that documented condition.
When is a new baseline allowed?
Create a new baseline only after the changed state passes the shop's acceptance check and the owner records why the old baseline was retired.
