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These are some posts from the old Meat and Networking blog. They're archived here for posterity, for random search traffic that might come rolling by.

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Nanino Upgrade

4 months ago, I read about Johan’s Nanino on Hack-A-Day, and thought it would be a great way to teach some folks how to etch their own circuit boards.  Although I’m increasingly shipping PCBs off to China, being able to etch your own boards is a valuable skill to have.  I’ve taught workshops on it in the past, and I’ve described the process on this blog.  Today, I set out to make a copy of Johan’s Nanino, but was almost immediately frustrated by the inability to manipulate and print the board file in a way that worked well for my process.  In the end, I redrew the thing using DipTrace.

Nanino ImprovedThe only change made to the original is the addition of a .1 uF capacitor on the DTR line of the FTDI header.  Some of the traces are a little closer together, but they’re still spaced out enough that etching this board is a cinch.

Here are the files:

Diptrace Schematic for Nanino

Diptrace PCB for Nanino

PDF of Nanino from the Back

You can use this PDF to etch directly.  No mirroring is needed.

Can be printed.  1200 DPI.

Can be printed. 1200 DPI.
Can be printed. 1200 DPI.  No mirror needed for etching.
Can be printed. 1200 DPI. No mirror needed for etching.

DXF of Nanino

And, because the original Nanino is licensed CC-BY-NC-SA, this one is also:

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.


It works!

It works!
Good toner transfer
Good toner transfer
The etch was drama-free
The etch was drama-free