CREATOR: gd-jpeg v1.0 (using IJG JPEG v62), quality = 82
" data-medium-file="https://hackaday.com/wp-content/uploads/2022/07/speaker-battery-main.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2022/07/speaker-battery-main.jpg?w=798">Perhaps the weakest point in modern electronics when it comes to user servicability is the lifecycle of the batteries included from the manufacturer. Without easily replaceable batteries, many consumer goods …read more (https://hackaday.com/2022/07/23/adding-a-battery-to-extend-speaker-life/)

Hack Your Brain: Bionic Reading — Panacea or Placebo?
https://hackaday.com/2022/07/23/hack-your-brain-bionic-reading-panacea-or-placebo/

In the Star Trek episode Space Seed, [Khan] famously said, “Improve a mechanical device, and you may double productivity. But improve man, you gain a thousandfold.” Most of our hacks center …read more (https://hackaday.com/2022/07/23/hack-your-brain-bionic-reading-panacea-or-placebo/)

Condemned Precision Capacitors Find New Home, Refuse To Become Refuse
https://hackaday.com/2022/07/24/condemned-precision-capacitors-find-new-home-refuse-to-become-refuse/

Ah, the age old tradition of Dumpster diving! Sometimes we happen to spot something that’s not quite trash, but not quite perfect, either. And when [dzseki], an EEVblog.com forum user, …read more (https://hackaday.com/2022/07/24/condemned-precision-capacitors-find-new-home-refuse-to-become-refuse/)

A ’70s TV With ’20s Parts
https://hackaday.com/2022/07/24/a-70s-tv-with-20s-parts/

Keeping older technology working becomes exponentially difficult with age. Most of us have experienced capacitor plague, disintegrating wire insulation, planned obsolescence, or even the original company failing and not offering …read more (https://hackaday.com/2022/07/24/a-70s-tv-with-20s-parts/)

Turn Drone Into A Large Propeller To Increase Hover Efficiency
https://hackaday.com/2022/07/24/turn-drone-into-a-large-propeller-to-increase-hover-efficiency/

Multirotor drones are significantly more popular than conventional helicopter designs for many reasons, which do not include efficiency. Making use of the aerodynamic effects behind this, [Nicholas Rehm] was able …read more (https://hackaday.com/2022/07/24/turn-drone-into-a-large-propeller-to-increase-hover-efficiency/)

Interesting Optics Make This Laser Engraver Fit in a Pocket
https://hackaday.com/2022/07/24/interesting-optics-make-this-laser-engraver-fit-in-a-pocket/

We’re going to start this post with a stern warning: building a laser engraver that can fit in your pocket is probably not a wise idea. Without any safety interlocks …read more (https://hackaday.com/2022/07/24/interesting-optics-make-this-laser-engraver-fit-in-a-pocket/)

Stackable 3D-Printed Gearbox For Brushless Motor
https://hackaday.com/2022/07/24/stackable-3d-printed-gearbox-for-brushless-motor/

Affordable brushless motors are great for a variety of motion applications, but often require a gearbox to tame their speed. [Michael Rechtin] decided to try his hand at designing a …read more (https://hackaday.com/2022/07/24/stackable-3d-printed-gearbox-for-brushless-motor/)