We all have those gnarly hacks that we still think about years after we first saw them. For serial tipster [Inne], one of those is [Patrick Baudisch]’s soap mouse, which …read more (https://hackaday.com/2022/05/28/soap-mouse-is-a-slippery-interface-for-mid-air-input/)

Annotate PDFs on Linux with PDFrankenstein
https://hackaday.com/2022/05/28/annotate-pdfs-on-linux-with-pdfrankenstein/

On Windows and Mac machines, it’s not too troublesome to add text or drawings (such as signatures) to PDF files, but [Mansour Behabadi] found that on Linux machines, there didn’t …read more (https://hackaday.com/2022/05/28/annotate-pdfs-on-linux-with-pdfrankenstein/)

Rackmount Hardware Placement Issues? IKEA LACK To The Rescue!
https://hackaday.com/2022/05/29/rackmount-hardware-placement-issues-ikea-lack-to-the-rescue/

[hackbyte] reminds us about a classic hack that, even though we’ve seen floating around for over a decade, has somehow never quite graced our pages before. Many of us keep …read more (https://hackaday.com/2022/05/29/rackmount-hardware-placement-issues-ikea-lack-to-the-rescue/)

Better Robots Through Gallium
https://hackaday.com/2022/05/29/better-robots-through-gallium/

In the movie Terminator 2, the T-1000 robot was made of some kind of liquid metal that could change shape among other interesting things. According to a chemical engineer at …read more (https://hackaday.com/2022/05/29/better-robots-through-gallium/)

Relax and Enjoy This Simple Drone Synthesizer
https://hackaday.com/2022/05/29/relax-and-enjoy-this-simple-drone-synthesizer/

You’d think that a synthesizer that makes as much noise and sports as many knobs as this one would have more than a dozen transistors on board. Surely the circuit …read more (https://hackaday.com/2022/05/29/relax-and-enjoy-this-simple-drone-synthesizer/)

Laser Driver Design Keeps Safety First
https://hackaday.com/2022/05/29/laser-driver-design-keeps-safety-first/

[Les] from [Les’ Lab] has designed a driver for laser diodes up to 10 watts, and decided to show us how it operates, tells us what we should keep in …read more (https://hackaday.com/2022/05/29/laser-driver-design-keeps-safety-first/)

Adjustable Workholding for Honeycomb Tables, With a Bit of DIY
https://hackaday.com/2022/05/29/adjustable-workholding-for-honeycomb-tables-with-a-bit-of-diy/

Honeycomb tables are often found on laser cutters, where they provide a way for work material to be laid flat while not interfering with things like airflow. This leads to …read more (https://hackaday.com/2022/05/29/adjustable-workholding-for-honeycomb-tables-with-a-bit-of-diy/)

Hackaday Links: May 29, 2022
https://hackaday.com/2022/05/29/hackaday-links-may-29-2022/