Industrial 3D printing: manufacture in-house or outsource?

Define comparable parts and quality first

Function, geometry, material and required quality form the common basis for comparison. Only technically suitable parts belong in the calculation. Post-processing, inspection and approval must be treated consistently for both routes.

Capture total in-house and outsourced costs

For in-house production, record acquisition cost and useful life or leasing costs, plus financing costs where applicable. Add material, energy, consumables, maintenance, software, operation, preparation, post-processing, inspection, scrap and training. For outsourced production, record the quote, shipping and coordination, plus inspection and post-processing not included in the quote.

For comparison, one-off amounts and recurring costs are expressed over the same period. Working time is valued using the appropriate cost rates. The purchase price and depreciation derived from it are not counted as costs at the same time.

• Show one-off implementation and recurring costs separately.
• Use the same evaluation period and scope on both sides.

Available capacity rather than nominal machine hours

Maintenance, staff availability, preparation and other jobs limit usable capacity. Compare utilisation scenarios for your component families and variants. A fixed universal break-even quantity would not be reliable without these inputs.

Shared roles and supply dependency

Digital work can remain in-house while specialist partners manufacture. In the Hack case, I handle scanning and checking, partners print and Hack casts. The example shows how digital work and manufacturing can be shared among different participants. Also assess supply dependency, capacity and responsibility for data and quality.

When no new purchase makes sense

If existing conventional manufacturing meets the requirements, suitable parts are lacking or supported capacity is unavailable, retaining the process or outsourcing can make sense. A hybrid solution can print only the suitable interface and leave the rest conventional.

At what quantity is an in-house printer worthwhile?

It depends on suitable parts, quality, usable capacity and total costs. Compare several utilisation scenarios rather than a universal quantity.

Is comparing printer price with unit price enough?

No. Include acquisition cost and useful life or leasing, financing where applicable, material, energy, consumables, staffing and the other process costs. Compare the same period, value working time using appropriate cost rates and check services included or excluded from the external quote. Do not count both the purchase price and depreciation derived from it as costs.

What data helps with the assessment?

Example parts, quality requirements, quantities and variants, current workflows and available capacity. Data gaps are identified as assumptions or next verification steps.

What is the next step?

Describe your component family and upcoming decision. We agree what inputs are needed and whether a Process Check is appropriate.