Monthly Archives: March 2020

Magnets Turn Flexible PCB Into Electric Grasshopper

Just because something doesn’t seem to have an apparent purpose, that doesn’t mean we shouldn’t try making it anyway. As flexible PCBs become cheaper and easier to order from low-scale fab houses, we’re seeing hobbyists experiment with new uses for them such as [Carl Bugeja]’s jumping circuit.

The circuit is …read more

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Posted in electromagnet, flexible circuit board, flexible PCB, flexible robotics, hardware, magnets | Leave a comment

Using A Vending Machine Bill Acceptor With Arduino

We’ve all seen, and occasionally wrestled with, bill acceptors like the one [Another Maker] recently liberated from an arcade machine. But have you ever had one apart to see how it works? If not, the video after the break is an interesting peak into how this ubiquitous piece of hardware …read more

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Posted in Arduino Hacks, bill acceptor, counterfeit, ir led, money, parts | Leave a comment

Fail of the Week: In CAD, Remember to Model the Environment

What’s wrong with the above picture? Failure can be an excellent teacher, and [J. Peterson] reminds us all of this when he says to remember to model the environment when designing things in CAD. He contrasts a failure with a success to demonstrate what that means.

The failure was a …read more

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Posted in 3d printed, 3d Printer hacks, advice, cad, design, Fail of the Week | Leave a comment

DIY Bagpipes Made From Common Household Items

The bagpipes, most commonly seen in their Great Highland form from Scotland, are a loud and imposing musical instrument. Known for being difficult to practice quietly, they’re not the ideal thing to pick up in these times of quarantine and isolation. But, if you must, here’s how you can craft …read more

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Posted in bagpipe, bagpipes, musical hacks, musical instrument | Leave a comment

Maxing Out Browser Tabs With 2TB Of Memory

Tabbed browsing was a gamechanger, allowing users to effectively browse multiple websites at once without losing context. It proved a better solution than using multiple windows, and was an efficiency boon celebrated by all. Many of us are tab fiends, opening great numbers at a time as a habitual part …read more

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Posted in browser, chrome, computer hacks, ram | Leave a comment

Professional Ventilator Design Open Sourced Today by Medtronic

Medical device company Medtronic released designs for one of their ventilators to open source for use in the COVID-19 pandemic. This is a laudable action, and there is plenty to glean from the specs (notable is that the planned release is incomplete as of this writing, so more info is …read more

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Posted in coronavirus, Covid-19, Coviden, Medical hacks, Medtronic, news, open source, PB560, ventilator | Leave a comment

Printed Door Handle Turns Key With a Servo

[Madalin Valceleanu] had a somewhat unique problem. He wanted to make his front door a bit “smarter”, but none of the IoT door locks he found were compatible with the style of reinforced door he had. So he set out to design and 3D print his own Internet-controlled door handle. …read more

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Posted in door lock, home automation, home hacks, key, servo | Leave a comment

Ammo Can Battery; 50 Ah LiFePO4 Clad in Army Green

For the price of a mid-range Android phone, [Kenneth Finnegan] turned a 50 caliber ammo can into a 50 amp-hour portable power supply. The battery pack uses four 3.5 V LiFePO4 cells wired in series to achieve a nominal 12 V supply that stands in for a traditional lead-acid …read more

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Posted in ammo can, ammo can power box, battery management system, bms, LiFePO4, Lithium-ion battery, misc hacks | Leave a comment

Rock Out While You Knock Out Germs

We don’t know about you, but we’re pretty tired of singing two rounds of “Happy Birthday” or counting Mississippi to 20 each time we wash our hands. It’s difficult to do it without thinking about the reason why, and that’s not good for positivity. If you’d rather have your spirits …read more

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Posted in copper tape, hand washing, lifehacks, lockdown life, Raspberry Pi, Raspberry Pi Zero W, spotify | Leave a comment

Can You Print With Highlighter Ink?

With huge swathes of people either out of work or working from home, many are now attempting all manner of exciting or silly projects in their downtime. [Emily Velasco] is no exception. She decided to explore the feasability of printing with highlighter ink.

The hack starts with a rather ancient …read more

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Posted in inkjet, peripherals hacks, printer, uv | Leave a comment