Product development

What development work actually needs

It needs to be wrong quickly. Every design decision that cannot be settled on a screen — how it feels in the hand, whether it assembles, whether the cover fouls the bracket, whether a person can reach the fastener — has to be settled by holding the thing, and each one is cheap to fix early and expensive to fix late.

Printing suits that because there is nothing to commit to. No tool, no minimum quantity, no setup that has to be amortised. A revision costs a few hours and some filament, so the number of rounds stops being the thing you are managing and the design gets to be right instead of defensible.

The ongoing mount job is this pattern in practice: many versions printed, more expected, a design being arrived at rather than handed over.

Starting from nothing is normal

Plenty of development enquiries arrive without a file, and that is a starting point rather than an obstacle. A drawing, a sketch, a photograph of a mock-up, or a description of what the thing has to do are all enough to begin.

The pump housing job began with a conversation and nothing else — no file, no part to copy — and ended with a modelled and prototyped assembly. That job also carried a constraint worth naming, because it comes up constantly in product work: the design had to be printable on the customer's own machine. Designing something to be made on equipment you do not control is a different discipline from designing something you will make yourself, and it shapes the geometry throughout.

Checking a design before committing to it

Simulation can be run where it helps — comparing two approaches, or sanity-checking one before it is committed to. It is an indication only. A printed part is layered and its strength depends on orientation, infill and how well the layers bonded on the day, and no analysis of a solid model captures that. Useful for direction, not a substitute for testing the real part, and it will not be presented as though it were.

Destructive testing can be arranged for smaller parts — loading and impact, at small scale. It is controlled and genuinely informative for the duty these parts see. It is not certification, not testing to a published standard, and not aerospace-grade validation. Where a part matters that much it needs a testing house and a different process, and you should be told that rather than reassured.

Where development usually goes next

Being honest about this is more useful than pretending printing is the answer at every stage.

If the product ends up being made in hundreds or thousands, it will be moulded, and the prototypes here will have done their job — settling the geometry before the tool was cut, which is where the real money was. If it ends up being made in tens, printing may well remain the production process, and short-run production covers that with its ceiling stated honestly.

A prototype also has to be read for what it is. It answers questions about fit, ergonomics, assembly, clearance and general behaviour extremely well, and questions about the exact strength of a future injection-moulded part poorly. Knowing which question you are asking is most of the value.

Your design stays yours

This matters more in development than anywhere else, because the design is the asset. Anything you supply is used for your job only and never reused, adapted or printed for anyone else. Where we model for you, the model comes with you — the STL with the job and a neutral solid model on request. The file policy sets this out in full, and it is worth asking any supplier the same question before they start.

Who this suits

Businesses developing a product or a piece of equipment, engineers working a design through, and anyone whose next decision depends on holding the thing. Funded work with several rounds ahead of it is the best fit, and it is welcome as an ongoing relationship rather than a series of unrelated orders.

Frequently asked questions

We do not have a CAD file. Can you still help?

Yes. A drawing, a sketch, a photo of a mock-up or a description of what the thing has to do are all valid starting points. One of the jobs on this site began with a conversation and nothing else.

How many prototype rounds should we budget for?

There is no useful average, and the number matters less than you would think once each round is cheap. A design that takes six rounds and ends up right beats one that takes two and does not.

Can you design it so we can print it ourselves?

Yes, and it is a distinct piece of work. Designing for equipment you do not control means keeping overhangs printable without difficult supports, using wall thicknesses that suit a common nozzle, and avoiding anything that only works on a well-tuned machine. It has been done here before.

Will you tell us if printing is the wrong process for production?

Yes. If the product ends up needing hundreds or thousands, it should be moulded, and you should hear that from us early rather than late. The prototyping work still pays for itself by settling the geometry before a tool is cut.

Do we own what you design for us?

Where you have paid for the modelling, you get the model — STL with the job, a neutral solid model on request. Anything you supply stays yours and is never reused.