Budget Bee 90 - A brushless micro quad under 70€

thingiverse

Hi there, Half a year ago, I started getting into the miniquad hobby and was blown away by how affordable these things have become. As a hobbyist, I wouldn't even consider buying an RTF quad when I can build one myself. So here we go. Update 1: I completely removed the top plate + spacer to save a whopping 5g of weight. I also picked up this Lipo https://goo.gl/uzUhyF, which saved another 23g of weight. And I got these props https://goo.gl/s1RhKe - that thing flies like a rocket now. Update 2: With new flight controllers and ESCs coming out, the price of this quad has dropped down to an incredible 60€ (ESC 4 in 1 14,50€ https://goo.gl/RgndNd). However, some parts like this new ESC may not fit my frame anymore, so I've added the 123 design files, allowing you to edit them on your own. The parts - cheapest build possible Motors: Racerstar 1103 8000kv (4x 3.47€) https://goo.gl/59hkXr Flight Controller: F3 16mm (11.25€) https://goo.gl/MDHzSa ESC: Racerstar 6A 1-2s 4in1 (23.48€) https://goo.gl/SZm6fa Receiver: Flysky irangex (NO FAILSAFE) (3.11€) https://goo.gl/JJ2AAr FPV camera: 600TVL CMOS (5.70€) https://goo.gl/jjYmBt FPV transmitter Eachine VTX02 (7.82€) https://goo.gl/T8LBZM Propellers: Eashine 2035 5 pairs (3.49€) https://goo.gl/o8BdQ9 That's a total of 68.73€. As always, Chinese sellers' prices are constantly changing, so if something is much more expensive than listed here, maybe wait for the next flash sale. If you have some extra cash to spare, I can really recommend these upgrades: Better flight controller with OSD: https://goo.gl/Hy4Lo2 better receiver with failsafe: https://goo.gl/LywVcC FPV camera with higher resolution: https://goo.gl/PRjPgW Frame out of carbon: https://goo.gl/Rkb5G8 The weight without battery is 51g. I'm still tuning this quad and looking for a decent battery that's light enough but still delivers plenty of power. Don't waste your money on ZOP Power lipos - I had a brown out after only 2 minutes of flight. First flight: https://www.youtube.com/watch?v=2XRkdow9_do Flight with failsafe https://www.youtube.com/watch?v=AtjCswvAw5Y