Small batches that change every season: producing without molds
The customer makes small batches of ever-changing pool components and revises the geometries every year. An industrial mold would make no sense. With 3D printing it produces only what it needs: over 900 pieces across 18 orders, with monthly reorders.
Anonymized at the customer's request
The problem: too many variants for a mold
The customer, active in the pool sector, needs to produce small batches of components that differ from one another: 5, 6, 7 and 8-outlet manifolds, angled fittings and a water-drainage part. The quantities of each variant aren't huge, and above all the geometries aren't final: year after year the customer changes shapes, improves products and introduces new versions.
In a situation like this, buying industrial injection molds makes no sense. They are high investments, with large minimum batches and long lead times, and as soon as a component's geometry changes the mold becomes useless. Tying up capital in tooling destined to age quickly is exactly what a constantly evolving company must avoid.
The solution: additive production on reorder
We moved the entire family of components to additive 3D printing, choosing the material based on real use: ASA, resistant to UV and weather, for the water-drainage part; ABS, tough and reliable, for the multi-outlet manifolds. Production happens in batches, on reorder: no molds, no huge inventory, no prohibitive minimums.
A material for each function
For the drainage part, exposed to water and sun, we used ASA (172.5 g per piece): resistant to UV and weather. For the manifolds, which are technical parts, silver ABS guarantees toughness and stability.
Batch production, no mold
Each variant is printed in the requested quantity, from the 6-outlet manifold (284 pieces) down to the rarer versions made in very few units. No tooling investment: we produce what is needed.
Fast reorders, files always ready
The drawings stay archived: every monthly reorder is a simple confirmation. And when the customer updates a geometry, we just reprint the new version.
Timing: a supply that follows the seasons
From January to May 2026 we produced over 900 pieces across 18 orders. The monthly reorders tell the most important part: the customer orders only what it needs, when it needs it, without planning months ahead or building up stock.
Customer impact
- Produces exactly what is needed, in shapes and quantities.
- No stock to build up and no capital tied in inventory.
- No investment in industrial molds to amortize.
- Total freedom to do R&D, changing products from season to season.
When shapes change every year, a mold is a cage. 3D printing does the opposite: the customer produces only what it needs and stays free to evolve its products without constraints.
Frequently asked questions about this case study
Is 3D printing worth it for small batches of different components?
Yes, this is precisely the ideal scenario. When per-variant quantities are limited and geometries change over time, injection molding is too expensive and too rigid. 3D printing requires no dedicated tooling, so each variant and each change only costs production time.
Can I change a component's geometry from one year to the next?
Absolutely. It's one of the main advantages: we update the file and reprint the new version, without scrapping a mold. This lets the customer pursue continuous R&D.
Which materials do you use for water-exposed components?
For parts exposed to water and sun we use ASA, resistant to UV and weather. For non-exposed technical parts we use ABS or other technical polymers, chosen according to function.
Got a product line that keeps evolving?
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