The Predator | Trampa Street Carver | 12S4P | Dual 6374 | Kaly motormounts and enclosure

ESK8 Builds
11

So, I finished the board yesterday 3:00am:

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It was worth it!, this board is nothing like any of my previous builds, it’s freaking fast, a lot of power to handle right off the bat, torque is ridiculous and it’s fun, FUN! to ride it.

I’m runing 40T drive pulley at the moment, still waiting on the 36T pullies from Kaly, buy I’m not sure why would I want more speed than this ever!

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The 6374 motors are amazing, I knew I was going to get more power but didnt think it was that much, they also look badass.

However, it was difficult to align those motor mounts, they always get crooked at different angles, I’ll try to align them tomorrow.

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Final board:

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Here a small bech test:

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Electronics ready!

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Nice build Eboosted !

Where did you get that Spot Welder ? Kaly is making a smaller 36T Pulley ??

Do you think those Thin Nickel Strips can handle all the Amps the 4P can putout ?

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the series connection is what has to handle high currents. so as long as his series connection cable is thick enough the single or double nickel strip should be sufficient.

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Some of the high current also flows through the Parallel connection also. (cumulative)

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I think it has to be silicone wire due to the flexiness of the Trampa Board. I hope he kept in mind that he should have soldered the series cable in the middle of the 4P pack - otherwise the nickel strip is part of the series connection and might exceed the recommended current.

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18

I solder some solid copper wire to Nicker Before i spot weld .

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19

I remember reading somewhere about this being a big nono due to dangerous fumes that can be released if you spot weld a solder joint. I believe I heard it from @chaka

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I have done the same thing on top of a double layer nickel strip just to be safe. @whitepony switched to using several layers and no copper AFAIK. I prefer solder wick now over solid copper though - makes reusing your pack simpler as the layout can be changed more easily.

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well you don’t spot weld on the solder - you put some spots of solder in between where the cells will be and then spot weld the prepared nickel strip to the cells - this is far easier than soldering after the nickel is welded and you don’t heat up your cells as much

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ah i see, makes sense

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Thanks man! The board is a fking rocket!

I got the spot welder from here Tindie shop, the seller is a know member of endless sphere:

Kaly didn’tsent me the pulleys by mistakwem so I’m waiting on those, I though he was doinf a 36T for these builds, I might have been mistaken though

I added flexible 14AWG cable between each pack as additional from the flexible cables, so it should work ok.

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Yeah, I did that, hope they can hold good.

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25

why do you have a red and black wire going across? Are they in parallel to double the current?

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Yes, the flat cable is not enough to hangle the demand of currrent, so I’m adding an additional flexible cable to connect the packs.

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ah okay :thumbsup: was just wondering why the two different colors.

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How much does this beast weigh?

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I ran out of black 16 AWG wire :confounded:

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Which size is the flat cable? If it is made of copper it should be more than enough.