There are a lot of PCB rulers available. Everybody makes one. I own a collection of them myself, and sometimes a ruler is pretty handy.
In addition to being rulers, most of them are filled with a bunch of helpful stuff I've never found that helpful. They've got hole sizers, footprint examples, design formulas, reference tables, and a lot of other things I've never used. I thought about how it could be better and this is what I came up with.
It's a PCB ruler you can cut up and use for small projects and hacks.
Snap off the main perfboard area and use it alone as you would any other prototyping perfboard. Most of the perfboard area is in a 3-hole-per-pad configuration, with some longer labeled buses thrown in too. The silkscreen indicates which holes are connected.
The Arduino UNO may be the world's most popular small microcontroller board, but it's not that interesting by itself. The hole spacing and alignment of the perfboard area is designed to mount to an UNO for any quick kludge, including the weird .040"-off-grid Arduino Gap. Headers pick up:
Regulated power (3.3V, 5.0V, GND) are connected to labeled buses on the perfboard.
Want to do some quick testing with SMT components? The adapter half of the multitool contains breadboard adapters for some of the most common basic surface-mount footprints. Snap out the adapters, add your parts, headers, and use them in a breadboard or any .100" pitch perf board, including this one! Adapter listing:
For low-volume and prototyping reflow, the single-piece right-angle shape can be used for frameless solderpaste stencil alignment and tooling. Use only one if your custom PCB is .032" thick. If your custom PCB is the standard .062" thick, stack two frames on top of each other and solder into a couple of the through-holes to get the correct thickness. Add a couple strategic pieces of Scotch tape and you'll be applying paste like a machine.
Inches on one side. Metric on the other. Tick mark showing which is which and where zero is.
It's a ruler. Maybe a straightedge if you're some kind of maniac.
Dann | June 24, 2016
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United States Postal Service: First-Class Mail
Just a regular paper envelope with first-class domestic postage. Available only for multitools. No tracking. Not much padding. But pretty cheap!
United States Postal Service: USPS Priority Mail
Flat-rate shipping service, typically in USPS "small" size box. Includes tracking.
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