Destroyer 12s Urban Racer Build

Lightweight / Folding / Portable EVs - seats optional
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beto_pty   1 kW

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Re: Destroyer 12s Urban Racer Build

Post by beto_pty » May 06 2014 9:18am

made_in_the_alps_legacy wrote:Thxs bto_pty, runs very nicely.
could not rely on the Wp reading since the test was started without resetting the wattmeter,
Actually it was reset and accelerated to verifiy remote control bind... Id say Wp is definitly 250w on its own...

Also leads to conclusions regarding the maximum wattage that a motor should deliver...at 45-50 amps is probably not continiuus..

If we look at sebastians graph from his post http://endless-sphere.com/forums/viewto ... 35&t=59576
666yeti666 wrote:wow 90 amps, that's a lot. My measurement values are a lot more conservative, (singe drive 6374-170 motor+ 6s lipo) see my datalog :
http://endless-sphere.com/forums/downlo ... ?id=136531
we see that tough he maxed at 38 amps, his average was under 4 amps...
From aprox 300 data points, if we were to eliminate the top 15 (5% of the points) we would have a max amp rating of only 14 ams. Turning this into percentages. The average wattage is 10% of the max. 95% of the wattages were under 40% of the max... I tend toa gree fully with this info.

Overkill?
150 amp controller and 90amp connectors to pull somewhere around 35 amps continious in my case
2400 watt motor to pull probably around 800 continiuos...
Id like to know if anyone has burned up their ESC or motor for non Hobbyking-quality related issues?
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Re: Destroyer 12s Urban Racer Build

Post by beto_pty » Jun 04 2014 8:55pm

http://www.youtube.com/watch?v=HM35jK8Z9ew



Trying to learn to post a youtube link...

There i think that works..
Will try out the hero3 and destroyer tomorrow assuming it does not rain...
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Re: Destroyer 12s Urban Racer Build

Post by DodgyBob » Jun 05 2014 5:08am

How fast were you going in that vid? Seems pretty fast :D

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beto_pty   1 kW

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Re: Destroyer 12s Urban Racer Build

Post by beto_pty » Jun 05 2014 11:29am

Yea its a pleasure to ride.. usually ride between 630 and 730.. its nice and empty and cool.. Its a nice round trip of 22 kms..
Whenever you are in Panama please call me up and well ride.. :D I always have an extra board and helmet on hand..

I was going 37-39 kph.. first run on fully charged 6s bateries.
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Re: Destroyer 12s Urban Racer Build

Post by verruckt » Jun 05 2014 1:30pm

Thanks so much for the video!

I finally am getting an idea of what 39kph / 24mph will look like from the deck of a longboard, and to tell you the truth it scares the piss out of me. Which is exactly why I'm building one of these things! :mrgreen:

But in all seriousness... that speed seems like it would be "fast enough" for most people.

Great work and keep the videos coming!

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Re: Destroyer 12s Urban Racer Build

Post by beto_pty » Jun 05 2014 1:42pm

Verruckt
Thanks I will hopefully post two new videos tonight,, some more longboard Porn...

A few friends have learned to ride on my boards usually takes them 3 to 5 days and then they can ride with me.... the first day the bravest of the three went up to 22 kph (acording to map my ride app) that is the fastes anyone has gone on day one... after 3-4 days 30 kph (max) is achieved. but they continue to cruise around 20-25..
The fastest ive ever riden the detroyer is 54 kph and I probably wont ever do it again.. it just isnt fun anymore...and having repeatedly fallen at around 40 kph on several ocasions i have no interest in learning what it feels at 54... :oops:
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Re: Destroyer 12s Urban Racer Build

Post by beto_pty » Jun 05 2014 7:08pm



This was today.. just to show what the destroyer looks and feels like when riding... didnt go anywhere near 54 kph max.. probably somewhere around 35 to 40 or so...
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superpef   100 W

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Re: Destroyer 12s Urban Racer Build

Post by superpef » Jun 05 2014 8:23pm

Nice spot! But dude those are terrible shoes for any kind of skateboarding. You actually have heels on these boots :shock: You should wear flat soles, feel the board better. Especially since your feet stick out at both ends like that. I don't even wear sneakers that have a sole that's too thick

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Re: Destroyer 12s Urban Racer Build

Post by beto_pty » Jun 05 2014 8:29pm

superpef wrote:Nice spot! But dude those are terrible shoes for any kind of skateboarding. You actually have heels on these boots :shock: You should wear flat soles, feel the board better. Especially since your feet stick out at both ends like that. I don't even wear sneakers that have a sole that's too thick
Lol :D

totally disagree... they have steel toes..steel heels and awesome heels to brake on., plus they are super broken in...

Have several sets of gym sneakers as well as some skateboarding Vans or something like that lying around.. they just dont measure up..

However they do suck when I have to hoof it...which fortunately is less and less often

Here is a vid from about about a year ago before i disc0vered you guys... on my long deceased boosted boards reverse engineered Minimotor build...and you can see im sporting the same beauties...



And again in a not mentioned build which used the aluminum miniboard and my first hobbywing.. like 5 months ago...



:D they rock...
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beto_pty   1 kW

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Re: Destroyer 12s Urban Racer Build

Post by beto_pty » Jun 06 2014 12:33pm



Racing a bike.. however after defeating the poor soul.. it was faster than i could record/skate/not die...
Beetbocks more of the scenery.. it is really a pleasure to board here..
I love Panama
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Re: Destroyer 12s Urban Racer Build

Post by LEVer » Jun 06 2014 1:03pm

I LOVE IT!!! That board with those pads just looks so freaking BADASS! It's like Mad Max in Panama. :mrgreen: Lovely country, BTW.

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Re: Destroyer 12s Urban Racer Build

Post by beto_pty » Jun 06 2014 2:51pm

LOL :D

Dont forget I got a gun in my hand...
ScreenHunter_02 Jun. 06 14.51.jpg
Gun toting eboard Vigilante protects Panama's oceanfront bike lanes
ScreenHunter_02 Jun. 06 14.51.jpg (80.74 KiB) Viewed 2391 times
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Re: Destroyer 12s Urban Racer Build

Post by torqueboards » Jun 06 2014 5:03pm

Hahaha that's funny. Nice photo though.
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Re: Destroyer 12s Urban Racer Build

Post by beto_pty » Jun 07 2014 1:13pm



Again trying new things... maybe a different hold on the Hero3+
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Re: Destroyer 12s Urban Racer Build

Post by LEVer » Jun 07 2014 1:46pm

beto_pty wrote:LOL :D

Dont forget I got a gun in my hand...
ScreenHunter_02 Jun. 06 14.51.jpg
Hehehe. I know what I'm going to be on Halloween. I'm going to wear a grim reaper costume and hide the board under, then I'm going to scare the heck out of everybody! :mrgreen:

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Re: Destroyer 12s Urban Racer Build

Post by beto_pty » Jun 07 2014 3:49pm

LOL awesome idea...
Great potential for getting in trouble...
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Re: Destroyer 12s Urban Racer Build

Post by psychotiller » Jun 07 2014 6:23pm

Pediglide wrote:
beto_pty wrote:LOL :D

Dont forget I got a gun in my hand...
ScreenHunter_02 Jun. 06 14.51.jpg
Hehehe. I know what I'm going to be on Halloween. I'm going to wear a grim reaper costume and hide the board under, then I'm going to scare the heck out of everybody! :mrgreen:

What a great idea Pedi! Halloween is going to be a blast. Beto it looks really really nice where you're riding.
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Re: Destroyer 12s Urban Racer Build

Post by Nikimce » Jun 08 2014 10:23am

Did you find that kick pushing on the 42mm motors was much more difficult/ you had more resistance? I find my board is quite hard to push and I'm wondering if it is the small motors.

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Re: Destroyer 12s Urban Racer Build

Post by beto_pty » Jun 08 2014 2:45pm

Hi Nik
Pushing was a little harder but no imposibly so.. mi minimotos had 5:1 gear reductions so going at a decent pushing speed made them spin up pretty fast. So basically calculate your battery consumption.. or carry an extra one so you don't have to kick... :D
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Re: Destroyer 12s Urban Racer Build

Post by Barndom » Jun 10 2014 6:38am

Really nice, perfect EL-Skb scenery. I see a big mountain in the backround the way the shadows point. Can you take on some steep hills there?

Looks like you ride backwards?

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Re: Destroyer 12s Urban Racer Build

Post by beto_pty » Jun 10 2014 7:06am

Hi Barn
That little mound in the back is cerro Ancon it's about 250 meters high and has only 1 old access 1 lane road, Its a national park of some sort.. :shock: very ignorant..sorry so i guess that would not make for any meaningfull downhill, probably more of a problem with upcoming traffic than anything else... might actually have to go find out though... The band brakes on the destroyer should hold up to any kind of descent..

Are you saying I'm backwards? :shock: or that my board is backwards :D ... LOL
Actually my board has to be ridden backwards since my bandbrakes only work in one direction.. and as the mount is welded I cannot change the direction it works in.. so I ride the board backwards...However that said, after I saw the awesome rolling diference and the way the wheels "pull around corners and on startup all my latest designs incorporate front (as oposed to rear) wheel drive. The reasons are that the motor rolls with the hits, and any obstacles are "flowed over" as opposed to impacted... the breaking is a little wierd however as the board slightly sinks in the front..I do not see myself using rear mounted trucks again unless it's a 4x4 mountainboard.
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Re: Destroyer 12s Urban Racer Build

Post by Barndom » Jun 11 2014 3:59am

Nice solution to the problem :)

I thought, -why not just switch the trucks? But then I see the deck is milled to the electronics underneath.

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Re: Destroyer 12s Urban Racer Build

Post by beto_pty » Jun 11 2014 10:23am

Exactly. the underside was milled to hold them.
However Im working on a full enclosure to house them and might just forgo the milled areas, level everything off and enclose it. since I have decided to go from 5ah to 10 ah on 8s and the second set does not fit in the initial milled space... If i do so it will be no problem switching the trucks to they ride "correctly"
Nice catch though :D
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Velociraptor: 6s 10.4ah, Ezrun150, 9.8 mm abec11s, Quanum, 5060NTM, 16/48 hdt5, Piggyback Charge

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Re: Destroyer 12s Urban Racer Build

Post by beto_pty » Jun 13 2014 10:36am

Today's ride..



the end of the cinta costera... towards the end you can see a skating pit.. and finally the Maracana stadium (of course not the original Maracana which is in Brazil)...
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