Supplier's Category: All Jigs & Fixtures: Custom work-holding for assembly and inspection
Jigs and fixtures are custom work-holding devices that position a part precisely for assembly, machining, or inspection — built for one specific part or operation rather than sold as general-purpose equipment. They’re typically designed and built alongside the process they support, not bought off a catalog.
Fixture design quality directly determines the repeatability of whatever process it supports, so evaluate a fixture builder on their process understanding, not just machining capability.
- Confirm the builder understands the process the fixture supports (assembly, machining, inspection), not just mechanical design
- Ask about repeatability and locating tolerance the fixture is designed to hold
- Check durability expectations against your production volume, since fixtures wear differently than production parts
Related terms: assembly fixtures, machining work-holding, inspection fixtures, locating pin design, repeatability tolerance, quick-change fixturing, modular fixture systems, fixture wear and maintenance
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Where fixtures fit in a production setup
Fixtures are typically the last piece of tooling built, designed around a process and part that are already finalized.
Typical sequence
- Process and part design finalized first
- Fixture designed and built to support that specific process
- Fixture validated for repeatability before production ramp