The latest addition to this library comes from our collaboration with NextPCB. Their new manufacturing-ready templates provide pre-configured fabrication parameters, reducing guesswork and ensuring a smoother transition to production.
Starting from a blank PCB layout means manually setting up constraints, verifying design rules, and ensuring compatibility with fabrication processes. NextPCB templates in Flux handle these steps upfront, allowing you to focus on circuit design rather than manufacturability concerns.
We’ve worked with NextPCB to create a range of templates suitable for different PCB complexities and applications:
To demonstrate how these templates streamline the design process, we developed a compact IoT-enabled sensor board using one of the NextPCB templates in Flux. This design also takes advantage of NextPCB’s latest Accelerator campaign, which subsidizes users who incorporate the RP2350 microcontroller.
This example highlights how pre-configured templates simplify PCB development, allowing you to iterate and prototype more efficiently.
Once you’ve selected a template, Flux Copilot and Auto-Layout streamline the design process, allowing you to focus on functionality rather than manual layout work.
Once your design is finalized, NextPCB templates make the transition to manufacturing straightforward. With a single click, you can export your Gerber files, ensuring they align with NextPCB’s fabrication requirements. This eliminates compatibility issues and speeds up the production process.
NextPCB has recently upgraded its PCB Assembly Quote System, allowing for instant, automated cost estimation. This removes the need for manual review, significantly accelerating the quoting and ordering process.
For more details, visit NextPCB’s official ordering guide.
Leveraging pre-configured templates optimizes your PCB design workflow by integrating manufacturing constraints from the outset. You can iterate faster, reduce potential errors, and ensure manufacturability without additional design rule verification.
Flux already offers a wide range of templates from leading manufacturers and community contributors. If there's a specific template you'd love to see added, let us know! We’re always looking to expand our library with designs that help you build faster and smarter.

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A practical guide to diagnosing and fixing PCB failures, covering common symptoms, a step-by-step debugging workflow, essential tools (multimeter, oscilloscope, logic analyzer, thermal camera), a pre-power-up checklist, and the design mistakes that most often lead to broken boards.

A practical guide to PCB impedance control, covering why it matters for signal integrity, the four physical variables that shape trace impedance, and how to enforce impedance targets from stackup planning through routing and fabrication.

A practical guide to reducing EMI in PCB design through grounding, return path control, shielding, and layout best practices. Covers EMC compliance with CISPR 32 and FCC Part 15.

A step-by-step guide to designing accurate PCB footprints — covering pads, silkscreen, courtyards, IPC-7351 density levels, origin setup, and common mistakes to avoid.

A practical guide to PCB grounding techniques — ground planes, return paths, star grounding, and analog/digital partitioning — with best practices for reducing noise and improving signal stability.