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/)

Hackaday Links: July 24, 2022
https://hackaday.com/2022/07/24/hackaday-links-july-24-2022/

OK, maybe that won’t buff right out. NASA has released a more detailed analysis of the damage suffered by the James Webb Space Telescope in a run-in with a micrometeoroid, …read more (https://hackaday.com/2022/07/24/hackaday-links-july-24-2022/)

Automated Hotend Swapping For Less Wasteful Multicolor Printing
https://hackaday.com/2022/07/24/automated-hotend-swapping-for-less-wasteful-multicolor-printing/

Multicolor printing on FDM machines can be tricky to get working flawlessly, and purging hotends when changing colors can end up wasting a lot of filament and material. To solve …read more (https://hackaday.com/2022/07/24/automated-hotend-swapping-for-less-wasteful-multicolor-printing/)

Complex Movements From Simple Inflatables, Thanks to Physics
https://hackaday.com/2022/07/24/complex-movements-from-simple-inflatables-thanks-to-physics/

Inflatable actuators that change shape based on injected pressure can be strong, but their big limitation is that they always deform in the same way. But by taking structural inspiration …read more (https://hackaday.com/2022/07/24/complex-movements-from-simple-inflatables-thanks-to-physics/)

A Tiny Forest of Resistors Makes for Quick and Dirty Adaptive Optics
https://hackaday.com/2022/07/25/a-tiny-forest-of-resistors-makes-for-quick-and-dirty-adaptive-optics/

The term “adaptive optics” sounds like something that should be really complicated and really expensive. And in general, the ability to control the properties of optical elements is sufficiently difficult …read more (https://hackaday.com/2022/07/25/a-tiny-forest-of-resistors-makes-for-quick-and-dirty-adaptive-optics/)

Custom Raspberry Pi Case Shows the Whole Workflow
https://hackaday.com/2022/07/25/custom-raspberry-pi-case-shows-the-whole-workflow/

If you are a process junkie and love seeing the end-to-end of how a thing is made and with what tools, then watch [Michael Klements] show off his Raspberry Pi …read more (https://hackaday.com/2022/07/25/custom-raspberry-pi-case-shows-the-whole-workflow/)

How Does the James Webb Telescope Phone Home?
https://hackaday.com/2022/07/25/how-does-the-james-webb-telescope-phone-home/