Alien tan tien 2.0 dual 42mm build

Lightweight / Folding / Portable EVs - seats optional
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stuntmanmike
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Alien tan tien 2.0 dual 42mm build

Post by stuntmanmike » Feb 08, 2014 1:15 am

happy winter,
I'm currently suffering from cabin fever, Its been a brutal couple of months in Ny(& the rest of world)the roads here are a mess with huge holes, snow & ice. This should make for some pretty interesting spring riding..I hope to complete this by then.

My plan is to run 6s thru 2 mamba monsters using 2 350kv motors & the new Alien dual rear Caliber mount. I'm really not sure how these tiny motors are gonna hold up, but from beetbocks' videos they looked good. I'll use 4 3s 5000mah lipos(paired in parallel) going into 2 CC mamba monsters. It'll be amazing if these little motors hold up on 6s but they might, we'll see...
I really wanna build this one like a custom rc car using my idea of the Thunder Tiger battery box to hold all electronics & batteries neatly.

Loaded tan tien deck
Abec11 76mm wheels
Swiss Bearings
Death Rey 185mm front truck
Caliber 185mm rear truck
Spektrum dx3s transmitter

I'll update as i go->
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Last edited by stuntmanmike on Feb 08, 2014 8:52 am, edited 2 times in total.

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Re: Alien tan tien 2.0 dual 44mm build

Post by torqueboards » Feb 08, 2014 1:25 am

Those motors should hold up fine. They look like the 42mm SK3 motors - http://www.hobbyking.com/hobbyking/stor ... Motor.html? Where did you get your motors?
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Re: Alien tan tien 2.0 dual 44mm build

Post by stuntmanmike » Feb 08, 2014 8:44 am

torqueboards wrote:Those motors should hold up fine. They look like the 42mm SK3 motors - http://www.hobbyking.com/hobbyking/stor ... Motor.html? Where did you get your motors?
I got these from hobbyking a month ago I couldn't remember if they were 42 or 44mm but 42 must be correct then.


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Re: Alien tan tien 2.0 dual 42mm build

Post by stuntmanmike » Feb 09, 2014 10:38 am

beetbocks wrote:That's looking great mike ..
Thanks Richard, I'm gonna drill and tap the pulleys as you suggested also to m3.

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Re: Alien tan tien 2.0 dual 42mm build

Post by stuntmanmike » Feb 21, 2014 11:00 pm

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I made some time on this build & even came up with a name for it, the creeper. It fit together pretty easily & I was able to give it the look I wanted, like it "doesn't have enough parts to run". Its a nice height with no riser pads & 76mm wheels, too bad the pot holes are like craters after this winter....But it should fly.
I ran into a problem with one of the motor pulleys & broke a tap in the intended hole. So Ill have to order another from Richard. But Its all good at this point I think. Its not quite finished until I resolve the pulley issue but should be done in time for spring> Questions? comments?
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Re: Alien tan tien 2.0 dual 42mm build

Post by Nijsjol » Feb 28, 2014 9:14 am

Looks great.

How is the topspeed.

What gear ratio did you use?

Thanks!

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Re: Alien tan tien 2.0 dual 42mm build

Post by beetbocks » Feb 28, 2014 3:51 pm

Ooh. Them motors look rather near .. Does it run ok?
Is that a Rey truck on the front?
Jacob bloy .. Has some custom rey mounts that I made for him a while ago .. That's he's selling , I think ..

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Re: Alien tan tien 2.0 dual 42mm build

Post by Merj » Mar 01, 2014 9:54 am

Where did you get the battery box? Looks great. What material is it made from?

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Re: Alien tan tien 2.0 dual 42mm build

Post by torqueboards » Mar 01, 2014 11:14 am

How is the 6S holding up on the 42mm motors that are rated for 5S?
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Re: Alien tan tien 2.0 dual 42mm build

Post by psychotiller » Mar 02, 2014 1:09 am

The Creeper looks nice!
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Re: Alien tan tien 2.0 dual 42mm build

Post by stuntmanmike » Mar 02, 2014 10:56 am

Hey now, I'm building a new Yeti 303 Dh bike & have neglected this site for a while, my apologies.
@ Nijsjol, Its been really terrible here weather-wise, super cold every day. I haven't ridden it yet..& I still need to address my pulley problem.
@beetbocks, Hey Richard, they are close aren't they? I can still adjust a bit though, its still in the rough design form. I need to order some pulleys this week from you, please rush them.
@torqueboards, Yeah they are rated for 5s but they should hold for a while I think, I've over powered BL motors & had some surprising results in the past. They definitely wont last forever but should hold for a while...I hope.
@ Merj , This is a Thunder Tiger Rc battery compartment for the MT4G3 monster truck which I "hollowed out" & extended the latches to fit the lipo batteries. If you check through my older posts you'll see more about it.
@psychotiller , Thanks man, more to come.

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Re: Alien tan tien 2.0 dual 42mm build

Post by torqueboards » Mar 02, 2014 11:34 am

How many miles do you think they will last at 6S when rated for 5S?
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Re: Alien tan tien 2.0 dual 42mm build

Post by stuntmanmike » Mar 03, 2014 8:09 am

torqueboards wrote:How many miles do you think they will last at 6S when rated for 5S?
I really don't know but I have an Rc car that Ive been running for a couple years on 3s & It's mamba motor(in-runner 6800kv) was only rated for 2s..I think as long as the esc can hold, which it will (mamba monster), the motors will be ok for a while...we'll see.

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Re: Alien tan tien 2.0 dual 42mm***RIDDEN in AWE***

Post by stuntmanmike » May 11, 2014 9:00 pm

I finally had the time to ride this one....WOW! These 42mm motors are truly amazing, at 6s they didn't even get warm. I'm totally surprised being that as Torqueboards pointed out they're rated for only 5s...I would say conservatively this one will do 20mph+ on 6s. I am currently running 2 3s 5000mah 30c lipos in series to each motor, run time at 1/2-3/4 throttle was about 30 minutes. This is typical neighborhood riding with some steep grades & some longer uphill burners. The beauty of these 3s batteries is that they are small, light & cheap. For longer rides you can just keep a fresh batch in a back pack then charge them in parallel to save time once you get to point b..

Thank you Richard from Alien as always your mounts are F-ing killer! No one should take these little motors for granted anymore, at 1/2 throttle I can pull and ride manual on command....AMAZING! Now go build one & see for yourselves...

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Re: Alien tan tien 2.0 dual 42mm***RIDDEN in AWE***

Post by torqueboards » May 11, 2014 9:38 pm

stuntmanmike wrote:I finally had the time to ride this one....WOW! These 42mm motors are truly amazing, at 6s they didn't even get warm. I'm totally surprised being that as Torqueboards pointed out they're rated for only 5s...I would say conservatively this one will do 20mph+ on 6s. I am currently running 2 3s 5000mah 30c lipos in series to each motor, run time at 1/2-3/4 throttle was about 30 minutes. This is typical neighborhood riding with some steep grades & some longer uphill burners. The beauty of these 3s batteries is that they are small, light & cheap. For longer rides you can just keep a fresh batch in a back pack then charge them in parallel to save time once you get to point b..

Thank you Richard from Alien as always your mounts are F-ing killer! No one should take these little motors for granted anymore, at 1/2 throttle I can pull and ride manual on command....AMAZING! Now go build one & see for yourselves...
Nice those are just the 42mm Sk3 motors? They are rated for 5s but they should work with higher voltage. How long they're capable of lasting is other question - guess you don't know until you try.

Yeah by far the 3S 5000mah packs are nice and thin. I have 3 packs (2x3S) total that I can charge the 6 batteries in about 30-45 minutes capable of 18-30 mile range using 350W HK Power Supply and an iCharger 208B Charger. Charging at 20 amps.

At $20 a pack, you definitely can't beat that.
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Re: Alien tan tien 2.0 dual 42mm build

Post by 666yeti666 » May 12, 2014 3:41 am

nice built Mike,
how do you deal with the flex of the Loaded Tan Tien board ? Or does this one have no flex ? What's the weight of the (empty) deck ?

I'm searching for a lighter board for my project. Currently using a "Vault the doctor" downhill board but it appears to be quite heavy with 4.1kg
(https://endless-sphere.com/forums/viewto ... 35&t=56568 )

thx!
regards
Sebastien

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Re: Alien tan tien 2.0 dual 42mm build

Post by stuntmanmike » May 12, 2014 6:45 am

666yeti666 wrote:nice built Mike,
how do you deal with the flex of the Loaded Tan Tien board ? Or does this one have no flex ? What's the weight of the (empty) deck ?

I'm searching for a lighter board for my project. Currently using a "Vault the doctor" downhill board but it appears to be quite heavy with 4.1kg
(https://endless-sphere.com/forums/viewto ... 35&t=56568 )

thx!
regards
Sebastien
This deck does flex a lot but I like it, it feels predictable almost like a snowboard. I mounted the battery box with spacers & rubber bushings so it's suspended by a few mm w/o actually touching the deck. My thinking was that I didn't want it to interfere with the flexing. I have another Loaded model called the Bhangra, its an odd shape with a nice defined tail. I plan to use this one for my next build. I would say the board w/o any batteries weighs around 18lbs with batteries maybe 22lbs.

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Re: Alien tan tien 2.0 dual 42mm build

Post by 666yeti666 » May 12, 2014 7:43 am

stuntmanmike wrote:
I mounted the battery box with spacers & rubber bushings so it's suspended by a few mm w/o actually touching the deck. My thinking was that I didn't want it to interfere with the flexing.
Aha ! that's sounds interesting, do you have any detail pictures where this can be seen ?
Because that would be my main worry of a too flexy deck; keep hold on the electronics...

thx
Sebastien

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Re: Alien tan tien 2.0 dual 42mm build

Post by superpef » May 12, 2014 8:12 am

Tan Tien is pretty flexy..
The stars on your motors remind me of the shooting barrels in Donkey Kong^^

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Re: Alien tan tien 2.0 dual 42mm build

Post by stuntmanmike » May 12, 2014 8:16 am

^^
I'll take a few more pics of it up close & post them for you tonight.

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Re: Alien tan tien 2.0 dual 42mm build

Post by stuntmanmike » May 12, 2014 8:34 am

superpef wrote:Tan Tien is pretty flexy..
The stars on your motors remind me of the shooting barrels in Donkey Kong^^
It's definitely is lively & springy makes for a lot of fun when electrified. & The motors totally do look like Donkey Kong Barrels, Good eye!

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Re: Alien tan tien 2.0 dual 42mm build

Post by stuntmanmike » May 19, 2014 9:36 pm



My first time using my Replay XD camera and some editing software, a bit shaky but hey, its the first one.

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