🖼 Reply to “Pictures and nothing else” thread 2023

whoa you can just jam big thumbtacks into the ends of the cells like that… cool :smiley: I had no idea.

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But they’re magne-

You fuck.

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Even quicker with a gun

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Time for an update video of your free roll.

Donnie thinks it’s a vacuum.

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are you spot welding or is this fine art??? :slight_smile:

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Thanks man!

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i hate to be that guy (and by “that guy” I mean “that guy who still has not updated the KitPCB build guide to reflect these new kits”) but the nickel tabs are supposed to be folded down onto each other, not away from each other.

Depending on how much current you are planning to draw from this pack, I suggest bridging those tabs with something like copper braid or wire, because the traces on the PCB are going to be a pretty high resistance connection between each p-group.

This is for an older version of the kit, but a lot of the basic principles are still the same. I think I’m going to start including a QR code that links to this guide (and the new one, when it’s done) in every battery kit order.

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Thank you for the looking out! About how many amps can it handle? I do have some 0.02mm I can put between them, thanks! :pray:

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Repurposed lacroix pack?

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That would work nicely :+1: i made exactly the same mistake on the first pcb kit i made too

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Yep! Going in the basket of a tandem bike :joy:

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deskpad where to buy?

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With the nickel spread to either side of the slots like you have it now, I would not recommend pulling more than 30A maximum from it, and even that is going to heat up those traces pretty bad.

Definitely best to bridge them with something. 0.2mm nickel would work, but copper braid would be better.

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Cool, I appreciate the help!

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… tell me more

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dual trigger with a deadman switch? damn, fingers be busy :joy:

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Ya idk about that part - I’ve never been a fan of deadman switch

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It’s transmitter for my electric skateboards I made while ago. Briefly, it uses Bluetooth Low Energy (LE) technology and is based on the Nordic Semiconductor nRF52832 microcontroller, mainly due to its compatibility with the new Bluetooth 5.0 specification

The controller is equipped with an OLED 128x32px SSD1306 display used to display information about the electric skateboard’s operating parameters, such as:
• current speed
• current throttle and brake position
• activation of the safety button, preventing accidental starting of the engines
• the charge level of the electric skateboard
• controller charge level

To read the position of the throttle and brake it uses two hall sensors.

The controller is powered by a 900mAh lithium-ion battery with a rated voltage of 3.7V, size 18350. To charge the battery I placed in the controller, a charger with an input voltage of 5V. A DC-DC voltage converter from 3.3V to 5V was used to power the development board with the nRF52832 microcontroller on it :nut_and_bolt:

The skateboard has an identical development board with the same nRF52832 microcontroller connected to the VESC6 via the UART port. Thanks to this I could use standard VESC protocol to communicate transmitter with esc.



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It looks very interesting, do you have any pictures of you holding it in your hand? Or a short video of trigger actuation?