Episode 48 | The angler’s arms are all red

Class is in session, everyone — the ‘Whampoa Academy’ of the tool world

Ep. 37 | Batteries? I can’t repair them, but I can build them

Can't fix it, but I'll build it — POV hand-made pack

Ep. 41 | Whatever you like watching, I’ll make it — what else can I do

Ep. 35 | How handy is carrying 220V mains power outdoors? A homemade multi-function portable power station that can cook rice and run a hot pot on its own battery

Ep. 42 | Turning a storage box into a solar-charged outdoor power station? Build a fun, practical multi-function solar-charging outdoor power station from a plain storage box — so useful!

Ep. 56 | Reborn as the ancient Greek god of labelling

Ep. 28 | What if you bolt an afterburner onto a car turbocharger? Turbojet gen 14 doubles its thrust

Bring 220V mains outdoors — DIY power station

An afterburner on a car turbo? Hardcore mod

Ep. 37 | A high-capacity power bank this easy? Build one at home for ¥20-odd — a huge-capacity, honestly rated power bank worth ¥100+

Building a car jump-starter power bank from 8 tabless Ampace JP40 cells

Building a 32140 LiFePO4 battery

DIY high-power flashlight tutorial: three 18650 cells and an e-bike headlight for under ¥20

Ep. 41 | Home speakers built from car speakers — surprisingly good? Turning car audio into a home stereo that sounds this good

Ep. 45 | An adjustable power supply with high-end features at rock-bottom cost? Building a portable, precise, digitally controlled adjustable supply from simple materials at the lowest cost — the result is a surprise

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

Ep. 5 | Tearing down a ¥20 Pinduoduo brushless folding mini fan — incredible value

Ep. 5 | Teardown of a ¥20 Pinduoduo brushless folding mini fan — surprisingly good value

A primary-school kid builds a 20,000mAh power bank — a 20,000mAh high-capacity, fully transparent cyberpunk-style one for a neighbor

Teaching you the 8-cell car jump starter

7.4V glue-stick mini fan tutorial, adjustable speed

Ep. 36 | A Bluetooth speaker bought for under ¥1 sounds amazing after the mod! A junkyard speaker turned into a wireless Bluetooth speaker — the result is a real surprise

I built a ‘New Year atmosphere machine’? If your village had a voice-controlled remote firecracker toy like this, would you stay home a few more days over the New Year

Ep. 43 | A homemade electric grass trimmer? A simple electric trimmer built at home from scrap, and it works really well

A first-person, immersive day in the life of an appliance repairman

[T.O.P.] Getting into FPV on a budget — making money from it is easy; DIY long-range packs and power stations, AWithZ

A big power bank this easy? ~¥20 at home

DIY flashlight — 3×18650 + e-bike LED, under ¥20