Street Carve / Kaly 6374 190Kv / MBS 110 / Ollin VESC/ 12S4P

I heard from Ralph DIY that Trampa has been harassing them about selling VESC. I thought trampa was awesome till I heard that. Messaged trampa to see if it is true but haven’t been messaged back yet.

For me personally is not about who’s awesome or not, I am not anybody fanboy, what I appreciate is a good product or at least the intentions and effort to make a good product.

The Trampa equipment is not perfect but at least the deficiencies easier to overcome.

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Not the forum for critical Trampa talk. Their stuff is very nice. Works great for what we are doing.

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What you mean by that? Tampa has been presing Torqueboards to sell VESCs? They already sell VESCs I don’t get it

Trampa probably wants to enforce the VESC name trademark and keep people from selling the VESC 4.12 under the VESC “brand”.

We don’t stop anyone from selling VESC, since we can’t do that. TM is in Benjamins hand, not ours. Nearly ever open source Project has TMs, so that customers can identify the original source. If you download Firefox you want to be sure its the Mozilla distribution and not a virus infected clone. TMs serve the purpose that people can be sure with whom they deal and what quality they can expect.

The VESC project is 98% Software and safety relevant. Benjamin wants other Brands to use their good name to promote their products and not the name of the OS-Project.

Example: Brand X-Controller, based on the VESC* ® Open Source Project.

*Vesc is a registered TM by Benjamin Vedder.

That is what he wants, fair use. Otherwise bad products (software or hardware) have a negative impact on the entire project. As a Brand you should stand for the quality you make with your own name, not with someone else’s.

http://www.vesc-project.com/trademark_policies_page

Frank

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@Kaly any word on your site? When will it be up to view your products? Do you currently have a list of what items you are selling?

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What VESC settings are you using on your board @Kaly?

These are my current settings but I’d like to know if I could get more power/torque with new settings:

Motor Max: 80A Motor Min (regen): -65A Battery Max: 40A Battery Min (regen): -8A

I wonder if increasing motor max, from 80A to like 100A, could lead to more power/torque

Hi Alan, increasing the motor amps will (after a certain point) not increase the motor power. Your stator will eventually go into saturation, generating more heat, in consequence the motor will be less efficient and generate even more heat and in consequence get even less efficient etc. etc.etc. Its a vicious circle if you continue to pump in more amps. Every motor (stator) has a limit.

If your Battery max is 40A, your VESC will not be able to shoot 80A towards the motor anyway. It does not make to much sense to use different values for Motor max and Battery max, nor for Motor min and Battery min. If your Motor generates -65 A when braking, these 65 A need to go somewhere. If you only allow -8A into your Battery, you have a leftover of -57A. Since there is probably no device installed that could transform the -57A into heat, your VESC will in consequence protect the system by decreasing the regeneration to -8A. Its always the lowest value that is effective in the very end. This explanation is a bit simplified, but in the very end the energy needs to come from somewhere and needs to go somewhere. In consequence you can’t pump more into the motor then you allow to drain from the battery and vice versa. You should also watch out for overstressing the VESC. If it’s a VESC 4 design, 80A is far of any scale. 45A is appropriate, if its for a short period of time, continuous is more like 25-30A, depending on the cooling. Benjamin stressed a VESC 4 in a test and compared that to VESC 6.

Frank

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Hola This are the settings I am using

Motor max 65 Motor min -65 Battery max 30 Battery min -20 Absolute 130

Incrementing the motor max to 100 will not do much since the VESC 4.12 will not deliver it continuously to the motor.

Thats wrong. Just make a test yourself using for an example 30A motor current and 30A battery current and compare to 60A motor current and 30A battery current. From your explanation you will not see any difference. You will see a better acceleration before hitting 50% duty cycle and the battery current limit kicks in. So there is an advantage using different motor and battery current limits.

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That is true @hexakopter and thank you for sharing this detail for sub 50% duty cycle. As I stated my explanation was a bit simplified. I was referring to the total amount of power you can squeeze out of your system, since I thought @Eboosted was hoping to gain more total amount of power, full on at speed. In that case the lowest value or weakest part of the chain is pretty much the limiting factor. Have you tried the new throttle curves yet?

Frank

Well in my case I was not shooting for only more power at high speed, I’m looking to increasee the overall pwerformance on the setup een though I could only increase at 50% DC or less.

Right now I’m runing 80A motor max -65 motor min (regen), braking is perfect now acceleration is pretty good as well, I’ll try lowerering motor max to 65A to see any differences and will report back.

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Wow this looks awesome. Totally new to this as I purchased a prebuilt inboard m1 but I see that I can get a far cooler board when building it myself. This is next on my shopping list since the inboard can’t take me up hills :S

@Eboosted So did you actually noticed any differences when lowering Motor Max ?

Sorry I still haven’t tested it. I might today after work

Oh ok…I was just curious …I have just set my motor max to 80a as well but it’s raining now. I’ll see if there is any difference between 60a and 80a. I have Carvon v2.5 Single Hub - 85kv.

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Looking damn nice. What battery enclosure are you using ?

Thx The enclosure i build :slight_smile:

Hi there Kaly…love your builds! Please allow me to make an off topic question.

I’ve seen you have built both Trampa and MBS mountain boards. And have used both Trampa vertigo trucks and the newer MBS matrix II. Can i get you opinion on which decks and trucks you prefer?

I’m just an old school street skater and I’ve never ridden a mountain board so i have no idea what to expect from either types of setup.