A few friends and I picked up some hoverboard wheels for real cheap and are making a gang of little tricycles and carts to have fun with. I want nice drivers for them and they aren’t very high power so your cheap focers were a perfect fit (thanks so much for providing those designs) - however JLC is out of the older DRV8301 chips and will not restock them for us, but I want about 30 ESC’s so the labour and possibility of failure hand soldering 40 DRV8301 chips makes me uncomfortable. So we’re going through a local PCB manufacturer who just sources the components for the job rather than going through LCSC - we can get a similar price point and I feel like its worth it. This however opens us up to the newer DRV chip and with my previous experience with older VESC hardware I would really like to be running 12S on a chip with a bit more room to breathe in the voltage rating - for running 14S comfortably or 12S with a good safety margin.
That lead me to find this forum topic! We’re looking to get 30 ECS’s. I’d like to ask if this project is in a state where it would be smarter for us to order some of these newer designs you’re working on with the lower power TO-220 configuration or go with the cheap focer 2 on your github. If so, would we be able to arrange something where we pay/donate to you a margin and go through our manufacturer for the SMT assembly and delivery - we’d like to handle all the manufacturing side of things to save on cost and assembly work (since we got the wheels for so cheap we feel obliged), and we’re happy to pay/donate you a margin similar to what you’d be getting with the DIY kits.
For general info to everyone, I intend to have different price points based on quantity ordered. So ordering a batch of 50 gets you a better deal per unit. Ordering 100 is even more better…and so on. It’s good for business to business sales.
Longish video of some thermal testing with a large aluminum plate. Show’s how much this kind of thing helps. It also shows the Little FOCer in a slightly different assembly configuration where the connectors and large caps are on the top side instead. This allows one mount and install the controller onto a third party heatsink or whatever.
I want to do more videos like this but I’m just shy and don’t have much experience making videos. I’ll probably make a youtube channel for my business and start dumping stuff like this on it.
Need more sexual content on this forum, dont be shy. I hear “only fans” is a thing now.
In all seriousness tho, you’re a murican, english is your first language(as in excellent), no uncultured EU trash like myself, so informative videos is always appriciated.
Cudos on the motor bench, looks good
Would be intresting with some FLIR imaging if you have access to one! could potentially help in developing a good heatsink as well!
I prefer; “Fans only real FOC vids”, or
“Things get REAL hot in the latest fans only FOC vid” get exclusive Sam L Jackson approved content for only 30 bucks a month.
you get the idea
Fair enough, however, I wouldn’t mind a few “Ya’lls”, or other sudden southern outbursts (I might be clueless, but you’re somewhere south right? )
There are some pretty decent andriod thermal imaging things but a real FLIR camera takes the pie so far from my experience. plus they’re freaking cool as well.
Awesome man! Can’t wait to hear how it does for you!
There are some tricks though for motor detection with a large hub motor. So far, people doing the wizard with “2000g outrunner” setting has worked well for them. If there are still some issues, people have reported that reducing Ki as much as half has also dialed in their settings. Just let me know if you run into any weirdness in detection or operation.
Im trying to convince my buddy that he should try one of these controllers for his upcoming large hub motor ebike build. That build might be a while off now though, since he got laid off Do you know if this ESC is going to be compatible with existing vesc-based peripherals (metr, davega, iLogger, etc.)?
20S is the max operational voltage. Meaning you can safely use a 20S battery with this controller. That number already accounts for voltages spikes/transients and the controller is designed to have this safety margin
Ill hopefully have a chance to take you up on that offer sometime after COVID is much less of an issue. Maybe Ill ship one of my rigs down when I visit the in-laws I’d expect you’ll have your Mountain Board done by then heh.
Do you know if this ESC is going to be compatible with existing vesc-based peripherals (metr, davega, iLogger, etc.)?
I’d expect you’ll have your Mountain Board done by then heh.