Save with our Medium Run discount

Need 100 square inches or more?

Our 2 Layer Medium Run service is $1 per square inch and ships in 15 calendar days or fewer:

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$1 per square inch, 100 square inch minimum. You can have as many different designs as you want, as long as each design is ordered in a multiple of 10 boards.

For example, if you had two different 5 square inch designs, you could order 10 of each for a total cost of $100.

100 inches is just the minimum order. You can order as much as you’d like beyond that.

Turn Times

Fabrication time can vary for medium run orders, but boards will ship in 15 calendar days or fewer.

Medium Run orders cannot be expedited. For faster fabrications options, you may be interested in our 2 Layer Service or even faster 2 Layer Super Swift Service.

You can get a quote, approve a design, and pay for an order at OSH Park.

2 Layer PCB Specs

Quick Specs

  • 6 mil (0.1524mm) minimum trace width
  • 6 mil (0.1524mm) minimum trace spacing
  • 10 mil (0.2540mm) minimum drill
  • 5 mil (0.127mm) annular ring
  • PCB thickness of 1.6mm (.063”)
  • 1oz copper on both sides (1.4mil, 35um)

Detailed Specs

  • ENIG (gold) finish for superior soldering and environmental resistance.
  • Solder resist and silkscreen on both sides.
  • Minimum 15 mil (0.3810mm) keepout distance from traces to the board edge.
  • PCB substrate is FR4 (170 Tg).
  • PCB substrate is compatible with a lead-free process.
  • The boards themselves are also lead free and RoHS compliant.
  • PCB Substrate dielectric constant of 4.6 at 1MHz.
  • Minimum 4 mil soldermask web.
  • Maximum soldermask expansion, retraction, or shift is 3mil.
  • Minimum 100 mil (2.54mm) width on internal cutouts. See our Slots page for further information.
  • Manufactured in the United States.
  • Castellations are allowed, but not officially supported.
  • Non-plated slots smaller than 100 mil (2.54mm) are not officially supported.
  • Plated slots and smaller slots are possible, but not officially supported. See our Slots page for more.
Save with our Medium Run discount

Optimizing the 5v to 170v Nixie Tube Power Supply Design

From Mark Smith on the Surf ‘n Circuits blog:

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Optimizing the 5v to 170v Nixie Tube Power Supply Design

A few years ago, while managing the power management product line at work, I started an initiative with the development team to optimize new products by achieving ESE.  ESE stands for Equations = Simulations = Experimentation.   The idea is centered on the engineering goal of product design to verify that the systems design equations match the simulation results and ultimately the experimental results.

When these three items match, not only do you understand a system, but you have the best chance to optimize a better solution.  I’ll have to say that in today’s mad dash to get new products out the door, achieving ESE is not always possible.    But to break through the ordinary and have a chance for the extraordinary, I would say this is a requirement.    Since this power supply is just a fun design for an upcoming nixie tube clock project of mine, I have the time to achieve ESE.

The updated schematic, BOM, Kicad Layout, and design files are located at Github:

Screenshot from 2018-02-20 12-51-12

surfncircuits has shared the board on OSH Park:

NixieSupply5vto160vDCMBoost_Rev2_1804

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Order from OSH Park

Here is a quick video showing six IN-4 Nixie tubes being powered by a 5v iPhone charger:

Optimizing the 5v to 170v Nixie Tube Power Supply Design

Hackaday Dublin Unconference: Grab Your Tickets!

Hackaday comes together in Ireland on April 7th and we want you to be there. Get your free ticket right now for the Hackaday Dublin Unconference!

An Unconference is the best way to put your finger on the pulse of what is happening in the hardware world right now. Everyone who attends should be ready to stand and deliver a seven-minute talk on something that excites them right now — this means you. The easiest thing to do is grab your latest hack off the shelf and talk about that.

Talks may be about a prototype, project, or product currently in progress at your home, work, or university. It could also be an idea, concept, or skill that you’re now exploring. The point is to channel your excitement and pass it on to others in a friendly presentation environment where everyone will cheer as your story unfolds.

Hackaday hosted an excellent Unconference in London back in September to a packed house for dozens of amazing presentations on a huge range of topics. We heard about bicycle turn signals, laser enhancing NES zappers, telepresence robots with IKEA origin stories, tiny-pitch LED matrix design, driving flip-dot displays, not trusting hardware 2-factor, and much more.

All the tickets for that event were scooped up in a few hours, and a huge waitlist followed. Don’t wait to grab your ticket!

via Hackaday Dublin Unconference: Grab Your Tickets!

 

Hackaday Dublin Unconference: Grab Your Tickets!

Tinkerfest in Oakland this April

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Tinkerfest will be at the Chabot Space & Science Center in Oakland on Saturday, April 14th:

Tinkerfest is a one-day festival that celebrates the creative, curious, and innovative spirit in all of us. Tinkerfest brings together makers, artists, and tinkerers to showcase their work while inviting attendees of all ages to join in DIY fun.

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During the daylong event, the entire Center will be activated, both interior and exterior spaces, with activities that highlight creativity and curiosity.

A hallmark area of Tinkerfest is the “take apart” zone where tinkerers can see, touch, and learn how something works by assisting in dismantling it. Tinkerfest is geared towards a family audience but intriguing for everyone! The event is a platform for where all ages can experiment and learn together.

Tinkerfest in Oakland this April

Miasma: Classic Dual Voice Eurorack Synthesizer Module

Miasma is a pure analog oscillator module based on the Curtis CEM3340 chips used in legendary ’80s synths, with new & innovative signal patching:Screenshot from 2018-02-17 12-51-02.png

Miasma: Classic Dual Voice Eurorack Synthesizer Module

We designed the Miasma Voltage Controlled Oscillator (VCO) to bring that classic ’80s synthesizer sound back to Eurorack modular systems. We just couldn’t find any currently available oscillators with the sound textures and capabilities that we wanted, so we had to design our own; and now you get to own one as well.  

There are many unique capabilities built into Miasma that you won’t find in any other oscillator module, like the built-in patching and cross modulation structures that make Miasma so flexible in your rack. However, it’s all about the sound – so let’s start with some Miasma audio samples, before we go into the technical details of how we make that sound possible (best listening with Headphones!)

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Miasma: Classic Dual Voice Eurorack Synthesizer Module

Dock for Onion Omega2

Valerio Backslashnew has designed a small dock for the Onion Omega 2 and 2+:

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My Omega 2/2+ dock\new

I needed the smallest dock i could do, that featured:

  • Ethernet
  • Type A USB host
  • Micro USB for power

Here’s what i came up with, i called it dock\new.

layout

It has an onboard linear voltage regulation (i didn’t bother going with a switching one for such low power), magnetics integrated in the RJ45 connector to save space, USB host ESD protection (diode array), USB host PTC fuse.

On the left side there is the RJ45 connector and nothing on the back side of the board, so that you can easily access the MicroSD card on the Omega 2+.

On the right side (the antenna side of the omega) you have the USB type A connector, facing outwards, and the microusb connector for power, facing inwards.

The project is open source (CC-BY-SA 4.0), and the KiCad schematics, board layout and the other files are available on GitHub:

5N44P/omega-dock-new

schematic.jpg

5N44P has shared the board on OSH Park:

omega-dock-new.kicad_pcb

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Order from OSH Park

Dock for Onion Omega2