Category Archives: how-to

Can Solder Paste Stencils be 3D Printed? They can!

[Jan Mrázek]’s  success with 3D printing a solder paste stencil is awfully interesting, though he makes it clear that it is only a proof of concept. There are a lot of parts to this hack, so let’s step through them one at a time.

First of all, it turns out …read more

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Posted in 3d Printer hacks, how-to, KiCAD, openscad, solder paste, solder stencil, tool hacks | Leave a comment

Don’t Scrape Magnet Wire, Do This Instead

[Tom] doesn’t much like breadboarding. He prefers to wire up prototypes with perfboard and solder point-to-point with enameled magnet wire. That may sound troublesome to some of you, but [Tom] has come up with a few tips to make prototyping with perfboard and magnet wire easier and more effective, and …read more

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Posted in how-to, magnet wire, perfboard, prototyping, tool hacks | Leave a comment

Magnets Make Prototyping E-Textiles a Snap

How do you prototype e-textiles? Any way you can that doesn’t drive you insane or waste precious conductive thread. We can’t imagine an easier way to breadboard wearables than this appropriately-named ThreadBoard.

If you’ve never played around with e-textiles, they can be quite fiddly to prototype. Of course, copper wires …read more

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Posted in conductive thread, f'n magnets, how-to, magnets, prototyping, rapid prototyping, wearable hacks, Wearables | Leave a comment

Cheap Strain Relief By Casting Hot Glue in a 3D Print

[Daniel Roibert] found a way to add cheap strain relief to JST-XH connectors, better known to hobby aircraft folks as the charging and balance connectors on lithium-polymer battery packs. His solution is to cast them in hot glue, with the help of 3D printed molds. His project provides molds fitted …read more

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Posted in 3d printed, 3d Printer hacks, battery, casting, drone hacks, hot glue, how-to, JST, jst-xh, lipo, mold, rc, strain relief | Leave a comment

Converted Car Lets Toddlers Tool Around

A few years ago, a professor at the University of Delaware started a project called Go Baby Go. It’s designed to bring fun and affordable mobility to small children with disabilities. The idea is to modify Power Wheels cars to make them easier for disabled kids to operate, and to …read more

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Posted in assistive device, how-to, Joystick, lifehacks, Power Wheels, PVC, ride on car | Leave a comment

Little Hex Tricks Make Little Displays a Little Easier

Depending on the device in hand and one’s temperament, bringing up a new part can be a frolic through the verdant fields of discovery or an endless slog through the grey marshes of defeat. One of the reasons we find ourselves sticking with tried and true parts we know well …read more

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Posted in 7 segment, bit manipulation, bit twiddling, c++, computer hacks, excel, how-to, ISSI, led, Microcontrollers, registers, spreadsheet | Leave a comment

Automate Your Life with Node-RED (Plus a Dash of MQTT)

For years we’ve seen a trickle of really interesting home automation projects that use the Node-RED package. Each time, the hackers behind these projects have raved about Node-RED and now I’ve joined those ranks as well.

This graphic-based coding platform lets you quickly put together useful operations and graphic user …read more

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Posted in Hackaday Columns, home automation, how-to, node-red, node.js, Nodejs, Skills, Software Development, tutorial, web app, webapp | Leave a comment

Drill Thrice, Solder Once

If you design printed circuit boards, then you will have also redesigned printed circuit boards. Nobody gets it right the first time, every time. Sometimes you can solder a scrap of 30gauge wire, flip a component 180°, or make a TO-92 transistor do that little pirouette thing where the …read more

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Posted in copper, drill, fr4, ground plane, hole, how-to, pcb, Printed Circuit Board, solder, Tech Hacks, wire wrap | Leave a comment

Tidy Board Rework Uses Flex PCBs, No Wires

PCB rework for the purpose of fixing unfortunate design problems tends to involve certain things: thin wires (probably blue) to taped or glued down components, and maybe some areas of scraped-off soldermask. What are not usually involved are flexible PCBs, but [Paul Bryson] shows us exactly how flex PCBs can …read more

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Posted in flex PCB, how-to, pcb, repair, repair hacks, rework | Leave a comment

Drive A Plasma Ball With An ATV Ignition Coil And A 555

[Discrete Electronics Guy] sends in his short tutorial on building a high voltage power supply from simple things.

The circuit is a classic, but we love the resourcefulness shown. The ignition coil comes from a three wheeler, the primary power supply is a ATX supply from a computer and the …read more

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Posted in 555, high voltage, how-to, ignition coil, plasma bulb | Leave a comment