#Beast-mode fan

Brushless motor turned monster fan, part 2 done. Installed + tested in one go, the sound takes off on the spot🔥 The spot welder locks the battery in solid — full throttle, spinning like mad, not budging an inch! This isn't a fan, it's a 'turbojet engine' strapped to your body… Take it out in summer — it works better than bringing an AC💨 #MonsterFan #BrushlessMotor #AWithZSpotWelder #UF20BSpotWelder #TechShenanigans

DIY monster fan | Hardcore conversion of a drone brushless motor into a monster fan🔥 Step-by-step tutorial, a spot welder builds super-strong airflow💨, enough wind to take off — the summer cooling wonder! #AWithZSpotWelder #UF20BSpotWelder #MonsterFan #DroneMotorMod #diy

A monster fan hand-built on 6 × 32140 cells. The 3D-printed model is his own design, prints well, and the whole structure is joined with heat-set inserts. The motor is a 3660KV brushless paired with aluminium blades; the small motor can burst to 1200W. Insulating rings go on the cells, then spot welding with the AWithZ U3 welder set to manual; the motor is rated 1200W, which by Ohm’s law is about 100A, and this nickel strip passes at most 33A, so three layers of nickel are stacked one after another to make sure the cells can deliver their full discharge rate; the welds come out perfectly smooth. Cells in, fan housing and grip screwed together, done; thrust tested at over 1000 grams. Comments: asking for the files (×2), no mould needed?, how much did it cost, ‘1200W? my e-bike is only 1200W’.

A follower recommended a so-called brushless “monster” mini fan, ¥19.38 paid (model FC-6638D, rated 1800mAh, 91×35×191mm, Type-C charging, folding). Features: about 10 speeds, a small LED digit display, plenty of airflow — about 50 grams of thrust on top speed, folds for carrying. Opened up: the main connections use plugs, easy to repair; lots of motor wires, confirmed brushless, the motor should be a 1503, 5-blade prop. The cells are dreadful: no capacity rating, no markings at all, negatives joined so they’re in parallel, and the unit has no BMS. Since it’s open anyway, he swaps in two high-capacity cells and adds a BMS against over-charge and over-discharge; welding with the AWithZ welder is handy, and it’s bumped straight to 5000mAh — over twice the original. Verdict: excellent value for ¥20, he suspects the seller is running a charity; a controller board alone for a home-built 1S brushless fan costs ¥20-plus online. 1368 comments: many say later batches cut corners and only have one cell, and the price went up; someone at the same shop plans to fit 2 EVE 33V cells; someone shows a fan with 800-plus grams of thrust.

A follower recommended a so-called brushless turbo mini fan, ¥19.38 paid (model FC-6638D, rated 1800mAh, 91×35×191mm, Type-C charging, folding). Features: about 10 speeds, a small 7-segment display, plenty of airflow, about 50 g of thrust at the top speed, folds for easy carrying. Inside: the main connections use plugs, easy to service; lots of motor wires, confirmed brushless, the motor should be a 1503, 5-blade prop. The cells are pretty poor: no capacity rating, no markings at all, negatives joined so they are in parallel, and the unit has no BMS. Since it is open anyway, swap in two high-capacity cells and add a BMS against over-charge and over-discharge, welded on the AWithZ welder, quite handy, straight up to 5000mAh, twice the original. Verdict: great value for ¥20, suspect the seller is running a charity — a controller board alone for a home-made 1S brushless fan costs ¥20-odd online. 1368 comments: many report later batches cut corners with only one cell, and a price rise; someone from the same shop plans to fit 2 EVE 33V cells; someone shows a fan with 800-odd grams of thrust.