Universal magnetic base build guide — the step-by-step build guide for the universal magnetic base is here

7.4V glue-stick mini fan tutorial, adjustable speed

Spent ¥127 on a high-power flashlight that lights up a whole building — no more fear of walking at night; 15 cells give 12 hours of runtime

Universal magnetic base — step-by-step

Ep. 61 | Last time a friend asked for one made from 18650s — today we build it; the full build is in the video, please watch patiently

I always looked up to the spot-welding pros, until I got one myself… turns out with full-auto anyone can do it

Hand-built monster fan

Found a new trick for the AWithZ spot welder, haha: spot-welding light bulbs

Ep. 31 | Very ‘open for business’, good morning, a workhorse’s daily grind, energy +1 — hand-building a 2S2P flashlight pack for the Wurkkos SP10 and other 8.4V flashlights

Ultra-low-voltage coilgun: the most powerful coilgun with the least copper

The batteries I planted are ripe — picking a few to make a power bank