PyJig Fixture
A KiCad-native, parametric hardware and software system that automatically generates production-ready bed-of-nails test fixtures from PCB design data. Hardware is open source — buy a kit, or build it yourself.
Open source on GitHubPyJig Fixture
A KiCad-native, parametric hardware + software system that automatically generates production-ready bed-of-nails test fixtures from PCB design data.
The problem
Today's bed-of-nails fixture workflow is a manual, time-consuming process: interpreting PCB test points by hand, custom CAD per board revision, one-off CNC tooling, hand-wired pogo pin boards, and ad hoc test scripts.
- High engineering time per fixture — days to weeks
- No reuse between products or revisions
- No standard pogo pin or alignment ecosystem
- Tight coupling between mechanical, electrical, and test logic
- Hard to version control or regenerate fixtures
- Expensive iteration loop for early production builds
The opportunity
There is a missing layer between KiCad PCB design and manufacturing test fixture — a layer that behaves like "Prusa Slicer for electronics test fixtures" or "OpenSCAD for pogo-pin bed systems." This enables rapid fixture generation from PCB files, standardized reusable primitives, automated test point mapping, and turnkey production test stations for low and medium volume hardware.
Product vision
A unified system that converts a PCB into mechanical fixture CAD, an electrical test interface, test software scaffold, and a complete manufacturing package.
Fixture product lines
We sell open-source hardware kits for each fixture type. The design files are free on GitHub — the kits save you the sourcing and assembly time.
Pogo Fixtures
Bed-of-nails test fixtures using pogo pins to contact PCB test points. Kits include the pin boards, alignment, and compression mechanism.
View productsFunctional Fixtures
Functional test fixtures that exercise a board's full electrical and software behavior under controlled conditions.
View productsAssembly Fixtures
Assembly aids that locate, hold, and support parts during manual or automated manufacturing and rework.
View products