Topic created by Onloop - Is the Ollin VESC using upgraded components?

Can you please tell us a little bit more about it? What is so exciting that is coming?

The bldc-tool is being restructured to make it easier to make changes.

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@Blasto my apologies for the delayed reply, I was a little busy yesterday.

At least one component is upgraded by @chaka to a higher capacity model, we spoke about this a while ago after he saw my VESC’s. I found it interesting/strange that vedder used 50V ceramic caps on places where up to 50V is applied since capacity drops extremely fast when a ceramic cap is operated close to its designed voltage. Yes this component is easily way more expensive (the cap alone costs 5 euro @ mouser = same price as DRV chip :fearful: ), but hey its that or very little low impedance capacity on the main power bus.

I would never claim that these type of upgrades will eliminate random blow-ups of VESC’s. Lets approach its safe: I think that some component upgrades will reduce the damage in case of wrong settings / los of battery while braking.

A VESC (just like any other BLDC ESC) will most likely blow if you short any of its phase outputs with the other. There should always be at least some inductance in the line close to that what is configured as the motor inductance. The whole current monitoring + regulation is based on the presence of the motor inductance!

You can understand that if the motor inductance is configured incorrectly the current that realized vs. the current that is desired is very different ( since the parameters do not correspond with the real system ). So the current could exceed the max allowed values easily when motor parameters are wrong. (even the motor parameter measurement is sometimes wrong in its estimation).

Another way to easily kill any BLDC ESC is operate it close to its voltage limit, brake, and while breaking disconnect the battery. The ESC will boost the back EMF/energy trying to pump it to the battery, the battery however is gone and the only thing to pump the energy in is the CAPS. The energy storage capabilities of the caps are minimal, thus voltage will rise fast. The VESC has a system to disable when the input voltage is to high, but it might be to slow to react when there is no battery.

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This is exactly my motivation to having a 50V TVS at the input, the TVS will be much faster to react and give an alternative current path to avoid an overvoltage situation.

Are you talking about your platinum service? Chaka offered this a long time before you, and he is the reason you even offer it. There was a whole debate here, because he offered it before you, so what are you smoking?

You host this forum cause if the industry doesn’t grow, you have no customers to sell your products to. It also doubles up as freeing you up from having to give advice to people using your parts. You can point them to the forum, and have us answer them for free, instead of taking up your time, which is worth a lot of money.

You did this to show us how much they cost to be made, not cause you want others to make them. I tried to get them made from your designs, but unless I buy in huge bulk, they would have been over $200 USD each. So they are effectively useless, since the design requires more dimensions on a cnc machine then your new design, which you haven’t released the files for.

If people don’t know how to build them, you have no one to sell your parts to. So it’s not about the goodness of your heart, it’s about keeping a steady flow of customers, and it’s a smart business move for you to inform people how to use your parts.

Same as above, the second you started making all these videos is around the same time your company started blowing up. It’s a smart business move to inform your customers of how to use your products.

Look, at the end of the day, you are brilliant business man. You know what to pick your arguments about and how to effectively argue. You do a good job of spinning things you do that are crucial to the survival of your company as favors to the community.

You are growing the industry and you are allowing others to sell their products on the forum, and that I applaud you for. It’s hard to argue that certain parts you sell like your motors are not high quality motors (whether they are over priced or not is a whole nother argument).

But your a business man. What features have you added to the vesc? Do you even know C? How deep is you electrical engineering education (do you have a degree in electrical engineering)? I just created the first 4wd board I’ve seen on this forum in a working state. I just created the first deck I’ve ever seen that was built from cnc milled 1/16th" veneers and pressed with a hollow core, and 100% Canadian maple (no CF of FG). And I invite you to participate in my thread, and you don’t care to even say anything about these innovations. Your too caught up in your business to see things from a builders eye anymore. You outsource everything you can. Do you even own a cnc milling machine? Or a jig saw or a press or anything that can be used to fabricate parts?

I’m surprised to see Jerimiah actually rip into you, but he’s been very patient, and I think he’s finally done putting up with this hoax you have going of being for the community when you care more about keeping your business going instead of being willing to lose your company because you chose to use shitty Chinese factories multiple times to make shitty quality vescs. If you haven’t significantly studied electrical engineering and can’t explain everything that’s happening at the board level, then stop hating on others that do. I am going out of my way to take more electrical physics class, and C class, just so I can understand the vesc better, and try to offer something to the community. Did you take through calc III? did you take general physics II with applied calculus? Have you taken computational physics (which I’m taking right now)? Stop acting like your smarter than everyone and be willing to admit your mistakes, and man up to them. If I can have my dream of starting a board company, and I make shitty boards, I won’t blame my customers, but accept I picked the wrong company to make them, and accept that my company might go under because of that, instead of my customers bank accounts.

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His motors arent overpiced, and the vesc com from texas… Please stop choosing sides, like @longhairedboy said, chaka’s makes excellent vescs and enertion makes excellent drive systems… And the best parts, it works absolutely fantastic together, so stop the childish behavior and both shoukd work on further developping their own products…

The VESCS only recently started coming from Macrofab. Previously, he has used multiple different vendors, one being Maytech.

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for the last year before this new factory in texas, he went through 3 factories in china. I bought vescs from 2 of those factories, 1 was broken on arrival, the other broke the second day of use. I was told It was my fault, I likely configured them wrong or something. Bought from chaka, did the same thing to set them up in the same setup, and rode for 4 months and they still work great.

Even now with this new texas factory, they ignored vedders warning about the pins needing to be clipped so it doesn’t puncture the main positive lead to the cap board.

His drive system for a mono drive used to suck. His old motor mounts had a small screw to adjust tension. You need to locktite them or they will come loose due to vibrations. Both of the ones I bought, The screws broke off when trying to turn them and take them out. After the first one, I was extremly carful taking out the second screw, but the head still broke off, and the screw threads are stuck in there. They looked like shitty quality screws, and beyond that, a bigger screw should have been used their from the beginning so this would have never happened.

He also used to sell only 9mm belts for mono drive systems. He said they will work fine on hills, but they didn’t I ate through 8 belts in 6 months of riding. Every time, I tried new belt tensions, because I was told it was either too lose or too tight. But the problem was that a 9mm belt can’t handle 10%+ grades with a 200 pound rider. Having told him everything, he assured me I was doing something wrong and his products were great.

I wasted over $1000 on enertion products and I have nothing working 8 months later except a motor to show for it. His products are better now IMO than they ever have been, but he never once offered to replace ANYTHING (excpect after months of arguing, he ddi send me a 12mm belt, which fixed the issue and proves my point that he should never of sold 9mm belts for mono drive systems, despite requesting it and advertising it like crazy.

I have a right to be pissed off, because I was naive and fell for his marketing scams.

This isn’t childish behavior, its using logic, experience, and science to back up my claims. So stop being a fan boy and realize that your experience may not have been everyone else’s.

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Yep. 2 minute fix with a dremel’s sanding drum and some blue tape. Clipping still leaves sharp points of not done with flush snippers.

Ollin’s are very nicely snipped.

if you cut them to the right length before they are soldered on, this problem is 100% avoidable. I remove my canbus ports and solder wires straight through the board. I am careful with the wire length, so that I don’t have pins sticking out. that could short something or poke something. It’s about being aware of what your building and taking the time to build something right the first time.

i want to do somethign similar with the USB ports so i can start having them accessible from outside the box.

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YES!!! That’s a great idea. The only good thing about the broken vescs I bought from enertion is I’ve been using them to practice my soldering skills, and learn to desolder ports correctly.

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why am i a fanboy now? Im not talking past but im talking present… Im just repeating longhairedboy words… If i would be a fanboy id also say that his vescs are super awesome… Wich i did not do… So keep your thoughts about me for yourself…

Would it aslo be possible to switch to micro usb (the one u get on a phone charger) usb type c (newest version of usb, alot of opportunities…)?

Sorry if I upset you, not my intentions at all. I’ve just had a very bad overall experience with enertion.

What benefits do you think the micro usb would have that makes you want it? Other than being smaller of course.

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Smaller and i think that usb type is more common so youd always have a cable to connect it with ypur computer, and hahah no problem bro, i understand ypur frustration, i would be to, and behold me, i ordered my vesc from enertion a while ago before i read al these bad topics about it, and im really scared of braking it

I personally think these ones from Texas should be fine for the most part if you do that quick fix that longhairedboy suggested. But like chaka has said, I think he’s done more to try to protect it from abuse or harder uses than than enertion. If your using all enertion parts, I think your less likely to have issues. It’s not that their systems today suck, the designs are way better. And they are geared and powered efficiently. But when someone advertises warranties, and does nothing when problems arise, that’s when I start to really have a problem. The math and science behind his products (besides the vesc) are great, it’s just the way he’s pushed inferior products in the past and letting his customers pay for his mistakes (whether that be a overlooked flaw in a design or choosing a bad manufacture).

The problem I’ve had with micro usb ports in the past is they are more fragile, and break quite easily if just a tad bit of pressure up or down is applied. It’s been a while since I last looked at the pin schematics which would tell you if its possible or not. But if there’s the same number of pins, it’s likely possible. It would make stacking 4 of thes ports way easier and nice looking :stuck_out_tongue:

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Well said.

The end solution is that instead of privately communicating with Vedder, we should all use his lovely forums to track our research.

There is A forum on Vedder site, juste for that.

Exactly, all the info I have is freely available on Vedder’s forum. Don’t be lazy.

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