In the era before PCB shops would make almost any PCB imaginable, as well making many other manufacturing processes for prototypes available to hobbyists, there were several ways of making …read more (https://hackaday.com/2026/09/29/improved-double-sided-toner-transfer-method/)

Designing a Fully 3D-Printed Mechanical Calculator
https://hackaday.com/2026/09/29/designing-a-fully-3d-printed-mechanical-calculator/

Even if almost tragically impractical in a world where digital calculators are cheap as chips, mechanical calculators and their big mechanical computer brethren remain an absolute marvel of engineering. Using …read more (https://hackaday.com/2026/09/29/designing-a-fully-3d-printed-mechanical-calculator/)

The Deep Magic of 3D Graphics Perspective
https://hackaday.com/2026/09/29/the-deep-magic-of-3d-graphics-perspective/

Many of us of a certain age will have had their first true, good 3D video game experience with Super Mario 64. Unlike previous 3D games, the camera was an …read more (https://hackaday.com/2026/09/29/the-deep-magic-of-3d-graphics-perspective/)

Determining Diamond’s Properties Under Extreme Pressures
https://hackaday.com/2026/09/29/determining-diamonds-properties-under-extreme-pressures/

Although graphene gives diamond a solid run for its money when it comes to being the most useful assembly of carbon atoms, both have the distinct property of material scientists …read more (https://hackaday.com/2026/09/29/determining-diamonds-properties-under-extreme-pressures/)

No More Windows For The Dutch Government, Ze Kiezen Nu Linux
https://hackaday.com/2026/09/29/no-more-windows-for-the-dutch-government-its-linux-all-the-way/

The events of the last few years have caused many in Europe to re-evaluate their reliance on large offshore technology companies, with a corresponding move to home-grown EU-based alternatives. It’s …read more (https://hackaday.com/2026/09/29/no-more-windows-for-the-dutch-government-its-linux-all-the-way/)

A Simple Solution for Streamlining Battery Recycling
https://hackaday.com/2026/09/30/a-simple-solution-for-streamlining-battery-recycling/

Lithium batteries have become the backbone of many modern devices ranging from toothbrushes to semi trucks, so what are we going to do with them when these rechargeable cells finally …read more (https://hackaday.com/2026/09/30/a-simple-solution-for-streamlining-battery-recycling/)

Sheety Turns Spreadsheets Into Binaries, For Some Reason
https://hackaday.com/2026/09/30/sheety-turns-spreadsheets-into-binaries-for-some-reason/

Ever wanted a spreadsheet as an executable with a built-in terminal interface? No? Well, that’s a pity because [Roberto Alsina]’s Sheety project does exactly that. Sheety compiles spreadsheet definitions into …read more (https://hackaday.com/2026/09/30/sheety-turns-spreadsheets-into-binaries-for-some-reason/)