# Ep. 42 - Certifications

- Show: [Open Hardware Manufacturing Podcast](https://hardwarepodcasts.com/podcast/open-hardware-manufacturing-podcast)
- Published: 2025-07-18
- Length: 1h 09m
- Page: https://hardwarepodcasts.com/podcast/open-hardware-manufacturing-podcast/2025-07-18-ep-42-certifications
- Listen: https://opulo.io

## Summary

Steven Hoss and Lucy Trey Park of Opulo discuss the complex and expensive process of obtaining FCC and CE certifications for the Lumen PMP V4 3D printer. They detail the four main categories of EMC testing—radiated/conducted emissions and immunity—and explain how using pre-certified power supplies and open-source community feedback helped them pass on the first try. The hosts also share practical advice on budgeting, the importance of consulting certification houses early, and the specific marking requirements for different markets.

## Chapters

- [0:00](https://hardwarepodcasts.com/podcast/open-hardware-manufacturing-podcast/2025-07-18-ep-42-certifications#t=0) Introduction to Certification Challenges
- [6:24](https://hardwarepodcasts.com/podcast/open-hardware-manufacturing-podcast/2025-07-18-ep-42-certifications#t=384) EMC Testing Categories: Emissions and Immunity
- [17:05](https://hardwarepodcasts.com/podcast/open-hardware-manufacturing-podcast/2025-07-18-ep-42-certifications#t=1025) Radiated Emissions Testing in Anechoic Chambers
- [31:39](https://hardwarepodcasts.com/podcast/open-hardware-manufacturing-podcast/2025-07-18-ep-42-certifications#t=1899) Radiated and Conducted Immunity Tests
- [40:38](https://hardwarepodcasts.com/podcast/open-hardware-manufacturing-podcast/2025-07-18-ep-42-certifications#t=2438) ESD Testing and Design Mitigations
- [44:15](https://hardwarepodcasts.com/podcast/open-hardware-manufacturing-podcast/2025-07-18-ep-42-certifications#t=2655) The Role of Open Source and Pre-certified Components
- [46:56](https://hardwarepodcasts.com/podcast/open-hardware-manufacturing-podcast/2025-07-18-ep-42-certifications#t=2816) Costs, Logistics, and Pre-compliance Testing
- [54:01](https://hardwarepodcasts.com/podcast/open-hardware-manufacturing-podcast/2025-07-18-ep-42-certifications#t=3241) Marking Requirements and Hardware.cafe Resource

## Topics

- [Certification & compliance](https://hardwarepodcasts.com/topic/certification-and-compliance)
- [PCB design & layout](https://hardwarepodcasts.com/topic/pcb-design)
- [Sourcing & supply chain](https://hardwarepodcasts.com/topic/sourcing-and-supply-chain)

## Most relevant to

companies scaling up

## Mentioned

- Lumen PMP V4 (product)
- FCC (other)
- CE (other)
- Keystone Compliance (company)
- AP plus Keystone (company)
- Mean Well (company)
- Formlabs (company)
- Form 1 (product)
- Form 2 (product)
- STM32 (chip)
- ESP32 (chip)
- RTLSDR (tool)
- hardware.cafe (other)
- Opulo (company)
- HobbyKing (company)
- UL (other)
- Keysight (company)

## Related episodes from other shows

- [299: Reasonably Foreseeable Misuse](https://hardwarepodcasts.com/podcast/embedded-fm/2019-08-15-299-reasonably-foreseeable-misuse) (Embedded.fm)
- [A Keyzermas Story](https://hardwarepodcasts.com/podcast/the-amp-hour/2020-12-28-a-keyzermas-story) (The Amp Hour)
- [Intro  EMC: Compliance, Opportunities & Pitfalls with Anton Tishchenko](https://hardwarepodcasts.com/podcast/ontrack/2024-05-01-intro-emc-compliance-opportunities-pitfalls-with-anton-tishchenko) (OnTrack)
- [Oxide and the Chamber of Mysteries](https://hardwarepodcasts.com/podcast/oxide-and-friends/2023-02-07-oxide-and-the-chamber-of-mysteries) (Oxide and Friends)
- [The Return to the Chamber of Mysteries](https://hardwarepodcasts.com/podcast/oxide-and-friends/2026-08-25-the-return-to-the-chamber-of-mysteries) (Oxide and Friends)

## Citing this page

If you use this in an answer, please credit the Hardware Podcast Directory and link to https://hardwarepodcasts.com/podcast/open-hardware-manufacturing-podcast/2025-07-18-ep-42-certifications. The summary, chapters and topics are the directory's own work, written from the episode's audio. The episode itself, its title and its audio belong to Open Hardware Manufacturing Podcast.