Building a Custom ESC from Scratch (VESC Based) 

Also props for using a Chris rosser clip. He is quite intelligent when it comes to escs or just fpv stuff in general lol. He maybe goes a little to far on paper and it doesn't always translate to the quad in the air BUT it's still great information to introduce to fpv where for the last couple years it's always been "so and so is the best hardware because it feels the best" Feels aren't valid science haha

I am not sure if you know how much of a pain is it to prepare electronic device for sell. I did consider it but i just CBA to deal with all that plus customers and rma.

@@Brian-SChris’s videos are the only reason I was brave enough to try Vesc years ago, figured if I can tune a drone I can do a Vesc 😂

Pads being small isn't that big of an issue, needs a little more practice than usual, high voltage plus small pads was the biggest issue for me :D

@@KaminarisTech the buck converter IC I used relied on the resistance of the low side fet to calculate current, I found I had wildly different resistances. I really needed solder paste at a minimum to solder the fets correctly, I only had solder wire. I might try soldering them again and seeing if I can get them a bit more consistent

@@harrylenon9594 I actually wrote a guide how to solder them, paste is needed: Use 60/40 solder from a reputable source. Trying to use lead-free solder by hand will be extremely difficult. Using poor-quality products will also result in failure, and this applies to flux as well. This board has 4 layers, so it can absorb a lot of heat. Using high-quality solder is essential because the board is very sensitive to cold joints. Having a good soldering iron is crucial and can make the difference between success and failure. To solder GaN mosfets i strongly recommend using soldering paste instead, everything else can be done with wire tin. Apply solder paste with flux on the footprint. Position the GaN mosfet in place. Use hot air until the solder melts and the GaN device is securely in place, applying gentle pressure to ensure proper contact. Remove any excess solder with a soldering iron. Allow the solder to cool down. [Repeat] Heat the solder joint again with hot air. Apply flux. Use tweezers to gently swirl the MOSFET, ensuring each pad has an equal amount of solder. Reposition the MOSFET properly. Allow the solder to cool down. [Repeat until the GaN mosfet self-aligns perfectly.]

"I want to design my own motor controller at some point, but the BOM gets pretty high pretty quick" With a desire to help you, I am wondering why you would think a great many parts would be needed. It does depend on your design goals, but I designed a 12V/1A PWM motor controller, using a PIC12F683 (same as a ATtiny85, but with the power pins inverted.) That only required about 12 discrete common parts. I would be glad to send you a complete kit for free, if you are in the USA/Lower48. I do not own the software, so you would have to write that. We would need to find a private way for you to provide me with your address. HTH. Cheers.

@@t1d100 thanks for the offer, that's very generous. I have made an ESC on a breadboard and it works pretty well, but I'd want to make something that isn't just re-making what everyone else has already made. For example a Ganfet design, you'd probably want to order at least 10 fets and that could be up to 150 bucks for GaNfets alone. Not super expensive, but unfortunately more than I am in a position to spend

UC3842 is low voltage only so the only option is floaty ground which i tried and will explain why its a problem in upcoming video. Also transformers are problematic in general because they are hard to find/search and winding them manually is absolute no-go.

Yes I am aware that flyback with transformer would be better but again, not enough space. I did made version with OC protection with 10mOhm shunt and INA213

TL494 does not support it. I am simply using halfbridge driver because they are more common. Using only single part of it.

@@KaminarisTech so whats wrong with all these schematics with half bridges controlled with tl494, and also why they claim it support deadtime control by pin DTC