Continuing his reverse-engineering of the Intel 8087, [Ken Shirriff] covers the conditional tests that are implemented in the microcode of this floating point processing unit (FPU). This microcode contains the …read more (https://hackaday.com/2026/01/11/the-intel-8087-and-conditional-microcode-tests/)

A New Kind of Inductively-damped Compass
https://hackaday.com/2026/01/11/a-new-kind-of-inductively-damped-compass/

At some point during our primary school careers, most of us probably constructed a simple compass, often by floating a magnetized needle on a cork in a cup of water. …read more (https://hackaday.com/2026/01/11/a-new-kind-of-inductively-damped-compass/)

EnderSpark: Convert Your Broken Creality FDM Printer Into An EDM machine!
https://hackaday.com/2026/01/11/enderspark-convert-your-broken-creality-fdm-printer-into-an-edm-machine/

https://www.youtube.com/watch?v=iLnna7q0drs
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2026/01/Screenshot-From-2026-01-08-16-59-57-featured.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2026/01/Screenshot-From-2026-01-08-16-59-57-featured.png?w=800">EDM (Electrical Discharge Machining) is one of those specialised manufacturing processes that are traditionally expensive and therefore somewhat underrepresented in the DIY and hacker scenes. It’s with great delight that …read more (https://hackaday.com/2026/01/11/enderspark-convert-your-broken-creality-fdm-printer-into-an-edm-machine/)

Smart Home? Make It Smart Quarters With This LCARS Dashboard
https://hackaday.com/2026/01/11/smart-home-make-it-smart-quarters-with-this-lcars-dashboard/

At the risk of starting a controversy: is there anyone who goes to the effort of setting up Home Assistant who wouldn’t really rather be living on the Enterprise-D? If …read more (https://hackaday.com/2026/01/11/smart-home-make-it-smart-quarters-with-this-lcars-dashboard/)

Taking a Look at Variable Vacuum Capacitors
https://hackaday.com/2026/01/11/taking-a-look-at-variable-vacuum-capacitors/

Variable capacitors may be useful, but the air gap that provides their capacitance is their greatest weakness. Rather than deal with the poor dielectric properties of air, some high-end variable …read more (https://hackaday.com/2026/01/11/taking-a-look-at-variable-vacuum-capacitors/)

Design of Common Emitter Amplifier
https://hackaday.com/2026/01/11/design-of-common-emitter-amplifier/

It used to be a rite of passage to be able to do the math necessary to design various bipolar transistor amplifier configurations. This doesn’t come up as often as …read more (https://hackaday.com/2026/01/11/design-of-common-emitter-amplifier/)

Making a CRT Spin Right Round, Round, Round
https://hackaday.com/2026/01/12/making-a-crt-spin-right-round-round-round/

If you’ve got a decent CRT monitor, you can usually adjust the settings to make sure the image scans nicely across the whole display. But what if you could rotate …read more (https://hackaday.com/2026/01/12/making-a-crt-spin-right-round-round-round/)

High-Tech Trailer Brings Water Home
https://hackaday.com/2026/01/12/high-tech-trailer-brings-water-home/