For parents

Whirlwright is a six-month engineering season for children aged 10 to 12: serialised chapters pose real mechanism problems, your child’s decisions become bespoke printed parts in the post, and the parts build into one working wind-up creature. It belongs in the education column of the family ledger, and the arithmetic sits comfortably there: £129 across six months is £21.50 a month — £129 ÷ £37.50 an hour ≈ 3.4 hours of private tutoring at the going UK rate (July 2026).

Will my child stick with it?

It is the fear we designed against first. The season is built as a question-ladder: every chapter answers its own question completely, then opens the next — no cliffhanger debt, no manipulation mechanics, nothing that nags. Month one ends with a win by design: the frame stands, tested by your child’s own push. From month two onward, the object on the shelf is visibly becoming an animal — and stopping would mean leaving it unfinished, in view, on the shelf.

Two structural things carry the slow months. The letters echo your child’s own decisions back to them, so re-entry never starts cold. And the decisions are genuinely theirs: the bench never hints, so the creature that emerges is one they can defend point by point. Ownership is the retention plan.

And if life intervenes anyway, the promises hold: every restoration gets finished, refunds are pro-rata, and nothing renews itself.

What do they actually learn?

Gear trains and ratio. Cam profiles and the motion they store. Linkages and mechanical advantage. Regulation — the governor, the part school never quite reaches. Your child meets each one as a story problem, predicts before testing, decides at the workbench, then holds the decision working in their hands a few weeks later.

Each parcel includes a parent note: one line on what the stage taught, one line on what comes next, nothing promotional. The outcome we design against is specific — a child who can explain the mechanism, unprompted, to someone who didn’t build it.

We already have too much stuff.

So do we all, which is why a season adds exactly one thing. Each month’s parts join the same creature; the box empties into the build; nothing accumulates but the animal itself. At the end there is no drawer of dead kits — there is one machine on a plinth, a certificate beside it, and both stay.

Why not a £30 kit?

A kit is one build, identical for everyone, finished in a weekend. A season is six months of decisions where the parts are printed to your child’s choices after each decision — designed by your child, built for your child — inside a story that makes next month wanted. A kit teaches assembly. A season teaches deciding: predict, test, commit, and live with your commitments, six times over.

On price: £129 across six months is £21.50 a month, and the finished creature is not the same product as a boxed kit — it is one of 3⁷ = 2,187 mechanical outcomes, and your child can name the reason for every one of its differences.

Is this another subscription trap?

No, and the structure is the evidence. The season is £129, paid once; it ends after month six, and there is nothing to cancel because it never renews itself. Season two exists, and it is a separate, deliberate choice — the Guild does not assume. The monthly way in is £24 a month, and cancelling is a button, not a phone call. Refunds are pro-rata; failed parts reprint free.

Stopping never needs a reason and never turns into a negotiation: at any point in the season you pay only for what has been made and sent. The law adds a floor beneath that promise — a 14-day cooling-off with a full refund, under the Consumer Contracts Regulations 2013, running from the day the first parcel is delivered — and our promise stands above it for all six months.

Screens, and what we never do

Screen time that turns into something real: the workbench is a place to predict, test and decide — roughly one good sitting a month, taken whenever your child likes — and everything decided arrives as a physical part in the post.

• No timers, and nothing that expires. The bench waits.
• No streaks, points, scores or progress theatre.
• No feeds, no strangers, nothing social: your child cannot see, or be seen by, any other member.
• No advertising technology, no third-party trackers, no analytics scripts — in the workbench or on this site.
• A first name and initial, the creature’s name, and the committed decisions — because the parts and letters need them. Prediction answers and exploration behaviour are never recorded. That is the whole list.

These are not settings you have to find. They are the architecture, and the Guild wears them as law: ‘The Guild does not hurry its members.’

Safety and materials

Whirlwright is designed for ages 10 to 12. Every decision commits to one of three named options from a finite, enumerable catalogue — 3⁷ = 2,187 configurations, every one known in advance, none improvised. No design contains uncertified magnets.

[TESTING-GATED: materials and testing statements publish here when the evidence exists. This section states nothing it cannot show.]

Given as a gift

A season makes an unusually safe gift: you pay once, the family begins it when they choose — a Christmas gift can start in January — and it never renews itself, so it is a gift, not a liability planted in someone else’s inbox. Add a message at purchase; it travels with the invitation.

How gifting works →