Ab welcher Stückzahl lohnt sich Lohnfertigung im 3D-Druck?

Es gibt keine Mindestmenge. Wirtschaftlich interessant wird es überall dort, wo ein Werkzeug bei 200 bis 2.000 Teilen pro Jahr nie amortisiert wird oder wo Varianten häufiger wechseln als das Werkzeug es zulässt.

Können wir Rahmenaufträge mit Abrufen vereinbaren?

Ja. Werkstoff, Parameter und Prüfmaße werden einmal festgelegt, danach rufen Sie Teilmengen ab. Das hält den Preis stabil und die Lagerbindung niedrig.

Wie stellen Sie Wiederholgenauigkeit sicher?

Freigegebene Aufträge laufen mit festgeschriebenem Werkstoff, Düsendurchmesser, Schichthöhe und Orientierung. Kritische Maße prüfen wir stichprobenartig und dokumentieren sie. Ohne diese Festschreibung ist jede Nachfertigung ein neues Bauteil.

Übernehmen Sie auch Bauteile, die bisher gefräst wurden?

Häufig ja, wenn Last und Toleranzen es zulassen. Sinnvoll ist das vor allem bei komplexen Geometrien mit viel Zerspanungsvolumen. Wir sagen aber auch klar, wenn Fräsen das richtige Verfahren bleibt.

3D printing contract manufacturing

Recurring parts, blanket call offs and small series from a locked process. Approve once, then reorder without material or dimensions drifting unnoticed.

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Reorders with identical parameters

What customers use us for

Contract 3D printing does not replace injection moulding. It closes the gap between one off parts and tooling release, and it keeps parts alive long after series production ended.

Recurring small series

Fixed parts in lot sizes of 20 to 500, called off several times a year instead of stocked up front.

Tooling and fixtures

Assembly aids, gauges and nests that need adapting with every product variant.

Legacy and spare parts

Parts with no tooling and no supplier left, rebuilt from drawings or a measured sample.

Capacity peaks

Extra capacity when your own printer fleet is booked out or a launch gets tight.

Suitable materials

In contract work, reproducibility matters more than peak datasheet values. We work with materials we can source in consistent quality long term.

Read the materials guide

What we lock before release

01Material and manufacturer, so batch changes do not produce new dimensions.
02Part orientation, because it affects strength and tolerances more than any later setting.
03Inspection dimensions and their tolerances, sensibly limited to the ones that actually matter in assembly.
04Finishing: deburring, threaded inserts, marking or painting.
05Packaging and labelling, so parts pass goods receipt without queries.

Full DFM checklist

Contract manufacturing: how the work runs

Contract manufacturing depends on the data handover. We review every STEP file before quoting for wall thickness, hole diameters and unsupported areas, and report back what could be made cheaper or more durable with small changes. That costs a few hours and usually saves a round of rework.

Then comes a first article. It is measured, documented and approved by you before the remaining quantity goes into production. On running orders we measure the first, middle and last part of a batch so a deviation is caught while it can still be corrected.

For call-off orders we keep material and parameter set ready and deliver to schedule. That suits spare parts and production aids in particular, because you avoid holding stock while keeping a short replenishment time.

Manufacturing data at a glance

Location: Schleswig, Germany
Part size: up to approx. 250 x 250 x 250 mm, larger parts split and joined
Quantities: 1 to several thousand, no minimum order quantity
Tolerances: approx. ±0.2 mm for PLA, PETG and carbon grades, ±0.3 mm for ABS, ASA and PC
Layer height: 0.10 to 0.30 mm
Materials: 20 engineering filaments from PLA to PA12-CF and PC FR
File formats: STEP, STL, 3MF, OBJ, IGES up to 200 MB
Lead time: 2 to 4 working days for samples, 4 to 15 working days for series

Machines and capacity Quality assurance Costs and price estimator Frequently asked questions

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Contract manufacturing FAQ

From what quantity does 3D printing contract manufacturing pay off?: There is no minimum quantity. It becomes economically interesting wherever tooling never pays back at 200 to 2,000 parts a year, or where variants change more often than tooling allows.
Can we set up a blanket order with call offs?: Yes. Material, parameters and inspection dimensions are fixed once, then you call off partial quantities. That keeps pricing stable and inventory low.
How do you ensure repeatability?: Released jobs run with locked material, nozzle diameter, layer height and orientation. Critical dimensions are sample checked and documented. Without that lock, every reorder is effectively a new part.
Do you take over parts that used to be machined?: Often yes, when load and tolerances allow it. It makes most sense on complex geometry with a lot of material removal. We also say clearly when machining remains the right process.