When a brand moves from catalogued models to its own shapes, it meets a one-time cost that does not appear on any per-unit quotation: tooling. A mould charge can be a few hundred dollars or several thousand, and deciding whether to pay it is a one-off financial call that shapes the next few years of the product line. This article sets out what the charge covers, how it is recovered through unit price, and the order volume at which a new mould beats an existing one.

What the tooling charge covers (and what it usually excludes)

A tooling or mould charge pays for the physical tools and the engineering to make a frame shape repeatably. For acetate, that means cutting jigs and tumbling fixtures; for metal and TR90, it means the dies and moulds themselves. The charge typically includes the first set of samples and the machining time, but it usually excludes:

·      Design and engineering time if the drawing is developed from scratch rather than supplied.

·      Colour-specific tooling — a new colour way may need its own fixtures even when the shape is shared.

·      Revisions after the first approved sample; changes to the approved tool are charged again.

·      Packaging and logo tooling, which are separate even though they are part of the same launch.

The first question to settle is therefore not "how much is the mould" but "what is in the mould price and what is quoted separately". A low headline tooling fee that excludes engineering and revisions is not cheaper; it is just incomplete.

Open mould vs private tooling

Most factories, including those with large catalogues, offer two routes:

The decision is commercial, not just technical. If the shape is what sets the brand apart, an open mould that any competitor can buy defeats the purpose, and private tooling is the right spend. If the shape is commodity and the brand lives in colour, packaging and logo, an open mould is the rational choice and paying for a private tool is wasted margin.

Amortising development cost into unit price

The standard way to recover a tooling fee without a separate invoice is to spread it across unit price. If the mould costs a fixed amount and the order is a fixed number of units, the amortised cost per unit is simply the fee divided by the units, added to the base price.

The relationship is linear and the lesson is direct: the same mould is dramatically cheaper per unit at higher volume. A buyer comparing a private-tool price at 2,000 units with an open-mould price at 2,000 units is comparing two different amortisation bases; the fair comparison is at the volume actually planned.

Break-even: the order quantity where a new mould becomes cheaper

Private tooling carries a per-unit premium (to recover the fee) but usually a lower base manufacturing cost than a branded open mould that the factory marks up for its own IP. There is a volume at which the private route, despite its fee, costs less in total than buying the open mould at its per-unit price.

The arithmetic is: find the quantity Q where (open-mould unit price × Q) equals (private base unit price + amortised fee) × Q. Above that quantity, private tooling wins; below it, the open mould wins. For a line expected to sell steadily across seasons, that crossover is often reached within the first one or two reorder cycles, after which every additional unit favours the private tool. For a one-off promotional run, the open mould almost always wins.

Timeline reality: from drawing to first shot

Tooling is not only money; it is calendar. A realistic sequence:

1.      Drawing confirmation— your approved 2D/3D drawing; changes here are cheap.

2.      Tool manufacturing— typically several weeks for metal dies or acetate jigs.

3.      First shot / first samples— the factory produces trial pieces.

4.      Fit and finish revision— adjustments to the tool; each round adds time.

5.      Approved sample and production release— mass production begins.

Buyers routinely underestimate step 4. A tool that needs two revision rounds takes materially longer than the quoted "tooling lead time", which usually counts only step 2. Building the revision time into the launch plan is the difference between a mould that ships on schedule and one that misses a season.

Five questions to settle in writing before paying a tooling fee

1.      What exactly is includedin the fee — tools, first samples, engineering, revisions?

2.      Who owns the tooland where is it stored; can you retrieve it if the relationship ends?

3.      Is exclusivity granted, for which territory and which period, and at what unit volume does it lapse?

4.      What is the revision policy— how many change rounds are included before new charges apply?

5.      What are the lead-time definitions— does the quoted time include sampling and revision, or only tool making?

These five answers, written into the purchase order or agreement, prevent the two most common disputes: a mould that turns out to be shared, and a delivery date that ignored the revision rounds.

Frequently asked questions

Is a mould fee refundable?

Usually not. It pays for physical tools and engineering already consumed. Some suppliers offer to refund it against a volume commitment; treat that as a rebate contingent on hitting the volume, not as money held.

Can I take the mould to another factory?

Only if ownership and retrieval are written into the agreement. Absent that, the tool belongs to the maker and stays with them regardless of who paid the fee.

Do I need private tooling for a simple colour change?

No. Colour is a production choice, not a tool change, for most frames. Private tooling is for a uniqueshape; colour ways are handled in production and finishing.

Why is the per-unit price sometimes higher after I paid the mould?

Because the quote may have been open-mould with the factory's IP markup; the private base price can be lower, but the amortised fee is added on top. At low volume the fee can outweigh the saving — which is the break-even point in action.

How many revisions should I expect?

There is no fixed number, which is why the policy must be written. Plan for at least one revision round in the calendar even if the drawing looks final, because tool behaviour rarely matches the drawing on the first shot.