self-select · before you buy

Read this first.

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One email, no drip — the walk-through renders in place. The outlet-free checkout stays on /sample.

editable · Word + Excel + PDF · no subscription

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also in the line

The four kits, the bio, and the sample.

Discoverability hops from the pricing page — the four live kit pages, the about bio, the comparison surface, and the free sample.

APQP kit

APQP for a 3-person plastic-parts shop

Phase gates, PPAP, and the control plan — the phase-4 paperwork the line tier 1 ships.

Open the APQP kit →

FAI kit

FAI prep kit for a CM hand-off

The DFMEA + dimensional inspection kit a studio hands a supplier on inspection day.

Open the FAI kit →

BoM kit

BoM ledger for a CM hand-off

Excel / Airtable / Notion ledger kit — the parts-list tracking the supplier revisions.

Open the BoM kit →

ECR kit

ECR loop kit for a 3-person studio ↔ CM

How the studio closes a change-order loop with the CM, end to end.

Open the ECR kit →

About

Chester / the Specvault line

Who is behind the kits, and where the four-sub-niche roadmap is heading.

About the line →

Compare

See Specvault vs. generic Gumroad template shops

Five axes side by side — provenance, specificity, walk-throughs, updates, and refund policy.

Open the comparison →

Free sample

Get the free sample walk-through

One email, no drip — the walk-through renders in place before any commit to buy.

Get the sample →

not settled?

The five-question FAQ →the five answers every small-shop buyer asks first.