Please support Julian's electronics videos (and the new Mediterranean Workshop project) via Patreon: https://www.patreon.com/julian256
eBay Links:
DIY Battery Holder w 6 Pins for 3x 18650 Rechargeable Li-ion Batteries http://www.ebay.com/itm/-/111871342292
50PCS 10mm x 3mm Rare-Earth Neodymium Disc Magnets Super Strong Hole 3mm http://www.ebay.com/itm/-/401222003141
2PCS WS 2812 WS 2811 5050 RGB LED Lamp Panel Module 5V 8-Bit Rainbow LED Precise http://www.ebay.com/itm/-/401074460112
9V PP3 Battery Holder Box Case Wire Lead ON/OFF Switch Cover + DC 2.1mm Plug http://www.ebay.com/itm/-/401037606458
USB Detector Tester Adapter Test for QC2.0 QC3.0 Fast Charging Power Adapter #DIY http://www.ebay.com/itm/-/131726954289
eBay Links:
DIY Battery Holder w 6 Pins for 3x 18650 Rechargeable Li-ion Batteries http://www.ebay.com/itm/-/111871342292
50PCS 10mm x 3mm Rare-Earth Neodymium Disc Magnets Super Strong Hole 3mm http://www.ebay.com/itm/-/401222003141
2PCS WS 2812 WS 2811 5050 RGB LED Lamp Panel Module 5V 8-Bit Rainbow LED Precise http://www.ebay.com/itm/-/401074460112
9V PP3 Battery Holder Box Case Wire Lead ON/OFF Switch Cover + DC 2.1mm Plug http://www.ebay.com/itm/-/401037606458
USB Detector Tester Adapter Test for QC2.0 QC3.0 Fast Charging Power Adapter #DIY http://www.ebay.com/itm/-/131726954289
Hi Julian. I need your help to build a 5s 18volt battery pack with charger board for powertool. Please advise. Thanks n regards. Sham.
Showing this to my wife to prove I'm not the only one ……
Personaly I think if you want to avoid 18650 + smoke then get rid of those ultrafire cells. They dont have the stated capacity and they are junk !
It's gear mating season!
Come on!! Admit it!! You ARE alice1101983!! And these videos are just a way to drum up business!! 🙂
I love cheap, eBay electronics from China. they give me a purpose in life
That kits can't be for kids ,it to kiss off adults .does.t look fun to me anyone
Instead of screws try pop rivets with the pop on the other side.
mhm would be interesting how the postal service handles magnets ..
If you need to estimate lengths and sizes, don't forget that you have a cutting board with a centimetre-scale right underneath! =)
where do I buy robot
1) 3 x 18650 battery holder – typical Chinese junk. They could have spent 20 cents more to put proper coiled springs on the negative end, then it would not only handle protected cells, but last through dozens of times more insertion and removal cycles before the flat spring contacts became deformed, and fragile after repetitively bending more springiness into them.
2) Not sure why you had a problem with magnetism after soldering. Other people do this with success, so are you merely observing that the magnetism was not "as" good? Perhaps you merely chose too thin a magnet so it got hotter than those other people used?
3) Neopixels – Use smaller screws. How big do they really need to be to secure something that must weigh an oz. at most? No need for the threads to be barely smaller than the holes, so long as the head doesn't pull through.
4) Charge Tester – Isn't it a shame that there aren't people who can write proper instructions, translated well to English? I mean, actually doing so. Certainly there is at least one person in China that is capable of both, but doing something else for a living, lol !
that dinosaur will never end!! looks like it need some finger puppet to help on that!!!
How do you convert (or invert) DC to AC? I want to power a 12VAC microwave type stepper motor from the car battery, but don't know how. Also, is a choke necessary in this situation to limit the current?
very clear audio
You should check the 18650 holder by removing the cells. Some have clips that actually damage the plastic coating when you remove the cell and the battery is dangerous (easily shorted) at that point.