CNC Master Models & Mold Making — Overview

Before starting production, most metal components require either a master model or a mass-production mold.

This section explains the differences, timelines, costs, and technical requirements involved in CNC master modelling and mold making.

Whether you are developing prototypes, small batches, or large-scale production, these FAQs will help you choose the most suitable solution and understand what is required to move forward efficiently.


If you are unsure which option is right for your project, our team will guide you through the process based on your design, volume, and budge

FAQs

What is the difference between a Master Model and a Mass-Production Mold?

There are two levels of tooling depending on what the project requires:

Master Model

  • Used for prototypes, samples, approvals, and low-volume production.
  • Normally made in brass or bronze.
  • Confirm shapes, dimensions, details, or logo before production.
  • Useful for microfusion or when you want to test the market before investing more.
  • Lead time: about 4–7 working days.
  • Cost range: usually €80 to €250, depending on complexity.

Mass-Production Mold

  • Used for stable production, repeated orders, and industrial batches.
  • Always made in steel for durability and precision.
  • Required for zamak die-casting and high-volume production.
  • Lead time: about 10–14 working days.
  • Cost range: usually €500 to €2,800, depending on cavities and shape difficulty.

Why do I need a mold or a master?

Because molds create repeatability, detail, and structure.

If parts must be consistent in size, thickness, or alignment, a mold is the correct investment.

If you only need samples or a small batch, a master model is enough.

Can I send an existing sample instead of making a master?

Yes. If you already have a sample of the hardware, you can send it to us to speed up the process.

  • For buckles we normally need 10 to 15 pieces
  • For small components like studs we usually need 40 to 50 pieces
  • We use these to produce a silicone mold for test production

This option is faster and cheaper, but the client must accept that the thickness may be slightly reduced compared to the original. For most items, this difference is very small and does not change the use.

Can a mold or master be modified later?

Yes, but only if the internal geometry allows it.

Minor changes are possible, but big modifications may require a new tool.

For example:

  • Adding a logo = possible
  • Changing size or thickness = usually a new mold
  • Full redesign = usually a new mold

Choosing the Right Option

  • Use a Master Model if you need prototypes, samples, or adjustments.
  • Use a Steel Production Mold if you are ready for mass production and repeat orders.
  • Send a sample if you want to save time and cost, and accept small tolerance changes.

Why is a mold needed?

A mold is required when producing components in zamak, centrifugal casting, or wax injection for microfusion. It ensures repeatability and correct detail.

Who owns the mold after it is made?

You do (client). The mold is your property and is stored safely for reorders.

Can molds be shared between clients?

No. Every mold is custom-designed for a single client.

How long does mold construction take?

Standard lead time: 4 days –2 weeks, depending on complexity.

Can an existing mold be modified?

Yes, but only if the geometry allows it. Some molds must be remade if changes are significant.

What tolerances can CNC produce?

We generally work within ±0.1 to ±0.3 mm depending on shape, size, and alloy requirements.

Is a mold needed for prototypes?

Not always. Prototypes can be produced by 3D printing or centrifugal casting before mold investment.

Why do mold costs vary?

Shape complexity, size, cavity count, moving mechanisms, and surface detail all affect tooling requirements.

Can the cost of the steel mold be refunded?

Yes. For clients who commit to continuous production, the cost of the steel mold can be refunded once the total value of purchases reaches €50,000.

This applies only to mass-production steel molds (not prototype master models) and is valid when orders are placed consistently until the threshold is reached.

Once the €50,000 purchase amount is met, the original mold cost you paid is credited or reimbursed according to the commercial agreement.

This refund applies to:

  • Steel molds for zamak die casting
  • Clients with ongoing or repeated orders
  • Projects that enter continuous production

This refund does not apply to:

  • Brass/bronze master models for samples
  • Temporary silicone molds
  • Low-volume or prototype orders

If you start with prototypes or a master and later move into full production, we can transition to a steel mold and apply this agreement.