r/VESC

So I’ve completed install of the V2 electronics kit for the ADV.

I found this kit is bitter sweet for these reasons.

-Safety. The kit is a safety upgrade the better protects the rider from voltage sag.

-Upgrade. In the kit Tony has included basically everything. He’s included a new ESC, a new
BMS a new front light, a new wiring harness, and two new frame parts that mount and fit all the new parts. Which also means you can save your old electronics for a rainy day.

-Cost. $200 is highway robbery for all of this stuff. Tony has to be taking a loss.

- Execution. This is probably different for everyone. My board had a rideable tune when it was first reassembled with the V2 kit. Motors are all a little different so a motor tune is necessary anyways. My board gave out during heavy braking at low speeds. The motor was loud and a bit rough at high torque demand and speed.

Tony helped me work through it for a bit.. and then seemed to give up. He thought I was having a failed hall sensor but I was testing fine.

Eventually I just tried tuning with Float Hub. Since it’s the V2 electronics kit for the ADV it’s hard to say which setup is appropriate, and without Tony responding…. Makes it more of a guess and check.

I’ve tuned the board a dozen times now in float hub, some time with the exact same settings as previous, sometimes trying different motors or ESCs or other values and yet I’ve got different results each time. My last tune I settled on the V2 motor and the early bird ADV2 ESC (which I couldn’t imagine is the ESC ive got… but it’s the best result..) My last tune feels the most comfortable. It’s the tune I’m now testing and hopefully will serve. It’s a little disheartening because the whole reason for the upgrade is safety but I have less trust in the board now than I ever have. I really don’t feel like the float hub parameters are correct. Mainly the ESC. But again, the the only tune so far to feel like I have appropriate power, my motor sounds good, I don’t click. So for now as I test and watch temps… this is the tune.

Other notes are that my detected motor resistance is slightly out of range measuring 89 ohms. This was not the case when I last tuned by board with the original ESC.

Photos : Reddit photos editor sucks so I’ll explain them here

1 - photo of the new build
2- photo of each part included in the V2 kit
3- New ESC vs Old (new one on top)
4- new BMS vs Old (new one on top)
5- Float Control warnings directly after completion
6- results of very first motor detection test

Flipsky 75100 dual is not detecting my hall sensors and phase wires get super hot and motor doesn’t spin properly except for in motor setup phase wires were actually steaming at one point

flipsky dual 75100 with proper wiring to ble module gives this error on v7 and 6.05

Quick little demo on FlowLED PRO - runs on VESC Express and maybe soon a lot for stock OW boards & esk8s!

I've been building this up for awhile, originally as a VESC package but now with dedicated hardware and a dedicated flash. If you like Float Accessories, you're gonna love FlowLED

Edit:

I am working on a custom LCM for FlowLED - but it'll be a bit before I have a demo unit ready!

If you want a full lighting experience with any pre-built boards from Fungi or even the ADVs (and other diy vescs), I'd recommend getting a LCM from Ava or flashing an esp32-c3 with FlowLED PRO if you're comfortable with soldering your own signal/power wires to the strips. This is what I've used/done during development.

If you have a purple UGLAND WLED controller, use FloWLED vesc package (in the RepairFlow discord) but assume it's half broken since I had a ton of hardware & memory constraints that no longer exist in FLED PRO. FloWLED runs on any standard VESC Express w/ CAN connection in Station Mode to connect to the WLED controller

• WLED info

• Ugland controller - don't buy a new one, just get an Avaspark module or ESP32

• FlowLED PRO installer & info

Hello all,

This is a quick review of the Makerbase VESC 75100, which I have been using nearly daily on my EBike for the past ~2 months. So far, this VESC has been fantastic and has put up with peaks of ~4kW and motor currents up to 140A; however, this device could likely take more! But, before getting into that, we have to start with the downside,

This ESC can not, or at least should NOT be used in its stock condition from the factory. As has been pointed out here on Reddit and on the forum.esk8.news forums, the 3x bulk capacitors inside are not secured to anything and are free to bounce around inside the enclosure. This is a ridiculous design flaw. Fortunately, this is quite easy to fix! The two options for fixing this are to either pot the entire device in a firm potting compound or epoxy, or to 3D print a bracket to which the capacitors are glued/epoxied. A user on Thingiverse has designed a 3D printable mount to secure the capacitors inside the enclosure. This model can be found here: Flipsky 75100 Capacitor Mount

I chose a combination of these two fixes, using the 3D printed bracket, and potting the entire device in SYLGARD 527 Dielectric Gel. I can't recommend using this compound as it remains very gel-like; I would have preferred something more viscous, but it has worked well thus far and is theoretically removable. However, once these capacitors are secured, the device is quite solid. If you don't feel comfortable investing the time in disassembling the device (relatively easy), securing these caps, and potting the ESC, I would recommend one of the newer VESC 75100 variants like the Pro V2 instead.

Once this has been remedied, you have quite a nice, waterproof, ESC which I have tested up to 140A of motor current pushing almost 4kW while remaining under 50°C. Another video of a similiar VESC 75100 from Flipsky shows it sustaining 200A of motor current at nearly 5kW, but their device overheats after ~20s, however this is due to the Flipsky design using a piece of Kapton tape between the TO-220 MOSFETs and the aluminum block, resulting in horrible thermal transfer between the FETs and the outer case. The Makerbase version instead has all of the TO-220 MDP10N027 MOSFETs, soldered to an aluminum-clad PCB, which is then directly mounted to an aluminum block and then onto the outer enclosure casing. This is a far more effective thermal solution and is why my device remains under 50°C in my demo video and in all of my most intense riding outside of it! For more firmware info and teardown pics of my ESC, refer to this thread.

In my demo video here, you can see my own personal test using this Makerbase VESC 75100 on my EBike. From timestamp 0:47 to 1:37, the ESC temp only rises by 5°C at an average of 1.5-2kW of output over the entire 50s interval.

If you are interested in potting this ESC, I have designed a simple potting fixture to hold the ESC upright while curing. I have also designed a simple mount for attaching the ESC to a bike tube. Both models are linked below:

• VESC 75100 Potting Fixture
• VESC 75100 Bike Tube Mount

Additionally, the ESC is currently on sale from AliExpress and can be had for under $47 shipped using the promo code USMS05 for $5 off. For under $50, the value really can't be beat. And no, I haven't been paid or compensated in any way for this post.