3D printed test adapters

We design individual test adapters for you to electrically contact your assemblies. Whether you want to test a printed circuit board or an assembled device – thanks to our specialization in additive manufacturing processes, we can provide you with a cost-effective solution and short delivery times.
→ Discover our test fixture variety

Visit us at embedded world 2023

We look forward to showing you our range of services at embedded world in Nuremberg from June 21 to 23, 2023. You will find us in Hall 3A, Stand 3A-325d. Do you need a ticket for embedded world 2023?

No problem, just send us an email to: info@eloprint.de

Thanks to our customers for many exciting projects

Press reports about test adapters from eloprint

Your advantages with our test adapters


As all of our design, production and assembly happens in-house, we are entirely independent of external suppliers. Orders can be fulfilled within 1-3 weeks.


Thanks to our 3D printing optimised construction methods, our costs are far below the market average. Since we only charge our development costs once, additional, identical adapters are particularly inexpensive.

ESD Protection

For use in ESD protected areas, our test adapters are provided with a special coating or optionally manufactured from special ESD material.


Circuit boards? Single components? assemblies? Whole devices? We develop and produce the appropriate test adapter.


Our compact and robust needle adapters can be integrated into almost any production line.


Test several million assemblies without maintenance.

Testadapter designs

For common requirements we offer the 3 construction types BAL, PRL, POL and IDL. Completely individual constructions are also possible. The shape and size of all of our test adapters are always individually adapted to the assembly to be tested. Thanks to the additive manufacturing process, special features can be easily taken into account.

This not only applies to unusual designs of the test objects, but also to special features of the test fixtures such as:

  • Display and controls in the test adapter
  • Exemptions from certain areas of the examinee
  • Sensors in the test adapter
  • Test needles from any manufacturer or we will make a suggestion
  • Contacting test points, pads, vias, solder joints, connectors, …
  • Lateral contacts
  • Permanently installed electronic components in the adapter (e.g. ISP, measurement cards, multiplexer, etc.)


This BAL design was specially developed for small circuit boards. Double-sided contacting is also possible with this.


The PRL design is particularly suitable for small and medium-sized boards. It is characterized by very good usability and good accessibility of the circuit board when clamped.


The POL design is suitable for large boards. It can hold down the circuit board at any point and make double-sided contact if necessary. The robust mechanism allows contacting hundreds of test points.


This IDL test adapter was specially developed for very large boards. A robust adapter that reliably contacts even large quantities of very large circuit boards.

Individual Adapters

Are your requirements too individual for our standardized construction methods? Then we are happy to create individual constructions. This is worthwhile, for example, for assemblies that are installed in housings or if individual plugs have to be contacted.

Price calculator

Calculate the non-binding net costs for your test adapter

Testadapter specification

Following specifications reflect average cases. If you have different requirements, please contact us!,

CharacteristicStandardSpecial case
MaterialVisiJet M2S-HT90, FR2, PLA, ABS oder PCAluminium, Stahl, PA12, ASA, PEEK, PEI, Keramik oder Acrylharz
Temperature resistance50°C , 90°C oder 120°CHigh performance plastic: >200°C
In extreme cases the testadapters can be printed of ceramic or metal.
Izod impact strength, notched (at 23°C)Charpy impact strength (at 23°C)
Charpy impact strength (at 23°C)58 kJ/m² according to ISO 179
Hardness76 (Shore D, test method: durometer)
ESD protectionguaranteed by special coating
Contact resistance< 50 mΩ< 4 mΩ
Current1 amps> 100 amps
High frequencyNo special precautionsSpecial coaxial test pins, leads and connectors
Service life> 100.000 Cycles
(In practice often much more)
Design according to your requirements
Pitch≥ 1,27 mm≥ 0,5 mm (requires close examination)
ConformityCE (RoHS, REACH)

Ordering process

Step 1

Calculate price

Simply calculate the expected costs yourself using our price calculator. We ask for your understanding that the costs for individual requirements may vary.

Step 2


Send us your requirements. In particular we need:

  • Number of test points
  • Dimensions and shape of the board
  • Information about large, heavy or protruding components
  • Connectors to be accessible
  • Do currents flow above 1 ampere?
  • Special requirements

We accept all of the following data formats:

Photos / Screenshots / Drawings

3D data of the test object (.stp / .iges)

2D data of the test object (.dxf)

Download testpoint template

Step 3

Questions / Offer

We do our best to settle all outstanding queries and send you a binding offer within 24 hours.

Step 4


When ordering, we ask you to provide a test specimen for test purposes. This will be returned to you in sound condition upon delivery of the adapter.

Step 5

Development / Manufacturing

As soon as your order is in, we begin designing your adapter. Once your test specimen arrives, we are able to check the tolerances and smooth functioning of the device and its production can be completed.

Step 6


Within the agreed delivery time, we will hand over your test adapter to a suitable shipping service provider.

Frequently asked questions


For an error-free process, we ask you to specify your test points and the desired pin assignment in this template:

Contact information:


+49 711 50480481

Please fill out the contact form to get in touch:

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