When Standard Isn't Enough#
Most test fixture needs fit within standard configurations: rectangular boards, common test point patterns, straightforward signal interfaces. That's what our Dev, Dev Pro, and Production fixtures handle.
But some projects don't fit the mold. Unusual board geometries, non-standard actuation requirements, complex multi-board assemblies, or specialized test interface needs that go beyond standard options.
A Different Recommendation#
Before you go custom, consider whether standard fixtures can meet your actual requirements.
Custom fixtures cost more. Engineering time, specialized components, and one-off manufacturing all add to the price. Make sure custom features deliver real value, not just theoretical elegance.
Standard fixtures ship faster. Our standard configurations are optimized for speed. Custom work requires engineering cycles that extend lead times.
Standard fixtures are easier to maintain. Replacement parts, documentation, and support are all simpler when you're working with standard configurations.
When Custom Makes Sense#
Custom fixtures are the right choice when:
- Board geometry doesn't fit standard base sizes or requires unusual clamping approaches
- Multi-board testing requires simultaneous access to multiple PCBAs in a single test cycle
- Specialized actuation is needed for boards that can't tolerate standard clamping forces
- Complex signal routing requires custom wiring harnesses or interface boards beyond standard TPCB options
- Integration requirements demand specific mechanical interfaces with existing test equipment or automation
Our Custom Fixture Process#
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Requirements review. We start by understanding what you're trying to test and why standard configurations won't work.
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Design proposal. Our engineers develop a fixture design that meets your requirements, with clear documentation of trade-offs and alternatives.
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Approval and build. Once you approve the design, we build and validate the fixture before shipping.
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Support. Custom fixtures include the same support as standard configurations, including documentation and replacement parts where applicable.
Alternative: Standard Fixtures + Self-Integration#
For many "custom" requirements, the better path is a standard FixturFab fixture combined with your own integration work:
- Custom wiring harnesses you build to interface with your test equipment
- Integration fixtures that mount standard test fixtures into larger assemblies
- Software integration using our open-source testing resources
This approach often delivers faster results at lower cost than fully custom fixtures.
Request a Custom Fixture Quote#
If you've determined that custom fixtures are the right path, contact us to discuss your requirements. We'll provide honest feedback on whether custom is necessary and a proposal if it is.