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Author Archives: Matt Varian

Bearing Witness: Measuring the Wobbles in Rotary Build

Posted on July 21, 2025 by Matt Varian
3D printed rotary table

3D printing has simplified the creation of many things, but part of making something is knowing just how much you can rely on it. On the [BubsBuilds] YouTube channel, he …read more Continue reading Bearing Witness: Measuring the Wobbles in Rotary Build→

Posted in 3d prining, metrology, rotary table, tool hacks

USB-C Rainbow Ranger: Sensing Volts with Style

Posted on July 15, 2025 by Matt Varian
USB VSense

USB-C has enabled a lot of great things, most notably removing the no less than three attempts to plug in the cable correctly, but gone are the days of just …read more Continue reading USB-C Rainbow Ranger: Sensing Volts with Style→

Posted in Hardware, USB Power Delivery, USB-C, USB-C PD

From Leash to Locomotion: CARA the Robotic Dog

Posted on July 13, 2025 by Matt Varian
Cara robot dog

Normally when you hear the words “rope” and “dog” in the same sentence, you think about a dog on a leash, but in this robot dog, the rope is what …read more Continue reading From Leash to Locomotion: CARA the Robotic Dog→

Posted in capstan drive, inverse kinematics, robot dog, Robotics, robots hacks

Wire Like a Pro: Peeking into Wire Harness Mastery

Posted on July 12, 2025 by Matt Varian

There are many ways to learn, but few to none of them compare to that of spending time standing over the shoulder of a master of the craft. This awesome …read more Continue reading Wire Like a Pro: Peeking into Wire Harness Mastery→

Posted in cable harness, Connectors, how-to, wire harness, wiring

Solder Smarts: Hands-Free Fume Extractor Hack

Posted on July 10, 2025 by Matt Varian
fume extractor

[Ryan] purchased a large fume extractor designed to sit on the floor below the work area and pull solder fumes down into its filtering elements. The only drawback to this …read more Continue reading Solder Smarts: Hands-Free Fume Extractor Hack→

Posted in esphome, fume extractor, home assisstant, Microcontrollers, tool hacks, wemos d1 mini

Budget Brilliance: DHO800 Function Generator

Posted on July 8, 2025 by Matt Varian
DHO800 function generator

The Rigol oscilloscopes have a long history of modifications and hacks, and this latest from [Matthias] is an impressive addition; he’s been working on adding a function generator to the …read more Continue reading Budget Brilliance: DHO800 Function Generator→

Posted in DSO800, function generator, oscilloscope, rigol, tool hacks

Splice CAD: Cable Harness Design Tool

Posted on July 7, 2025 by Matt Varian
splice-cad assembly

Cable harness design is a critical yet often overlooked aspect of electronics design, just as essential as PCB design. While numerous software options exist for PCB design, cable harness design …read more Continue reading Splice CAD: Cable Harness Design Tool→

Posted in cable harness, CAD, Connectors, tool hacks, wire harness

Fastener Fusion: Automating the Art of Counting

Posted on July 7, 2025 by Matt Varian
fastener counter

Counting objects is an ideal task for automation, and when focusing on a single type of object, there are many effective solutions. But what if you need to count hundreds …read more Continue reading Fastener Fusion: Automating the Art of Counting→

Posted in 3d printed, assembly line, fasteners, Hardware | Tagged Automation

Open-Source Knob Packed with Precision

Posted on June 29, 2025 by Matt Varian
Ploppy knob

The world of custom mechanical keyboards is vibrant, with new designs emerging weekly. However, keyboards are just one way we interact with computers. Ploopy, an open-source hardware company, focuses on …read more Continue reading Open-Source Knob Packed with Precision→

Posted in AS5600, magnetic encoder, open-source, peripherals hacks, rp2040

Modern Tech Meets Retro 7-Segment

Posted on June 23, 2025 by Matt Varian
IOT 7-segment display

At one point in time mechanical seven segment displays were ubiquitous, over time many places have replaced them with other types of displays. [Sebastian] has a soft spot for these …read more Continue reading Modern Tech Meets Retro 7-Segment→

Posted in 7-segment display, ESP32, Hardware, open-source, PCB coil

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