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My first Truggy - XXT

Started by rajathv8, May 16, 2011, 11:23:54 PM

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rajathv8

Hey guys,

Its been a long time since i wanted a RC Truck - from an evader st to phoenix st2 now this.
http://www.rcindia.org/beginners-zone/novice-rc-cars-query/

Was hard to convince parents back then. But now after many many attempts - i have my RC. Sparrowhawk XXT!! :)

I collected the truck on 15th - it came here with a friend i made recently.
Gave the truck a thorough cleaning and inspection.

Things that need to be done:
1. Should get an Antenna tube.
2. One screw is missing from the motor mount (3x4 BT machined screw)
3. Change connectors - the tamiya ones have become loose.
4. Need to get lipos :D
5. Need to do semething about the opening on the chassis for motor and spur - so that dirt doesnt get in.
6. Need to get some body clips.

I was informed about these before the purchase - deaing with the seller was pleasant.

I wont be running the truck till i fix the motor - it runs now but dont want to risk it as the spur gear may strip cos of a bad mesh. Got a Nimh 2400mah psck with it but no charger.

Thanks to everyone here for all the advice :) specially Divyam and Gandhar.

Here are the pics :)


rajathv8

Inners...

rajathv8

Tyres , radio . tools and spares ...

Divyam

No problem man! Great truck :D
1st thing that should go (Actually HAS to go) Are the Tamiya connectors..
They really can't deliver the power needed for BL systems :)
You want my NiMH charger? I don't use it anymore anyways :)

Looking forward to racing you at the track! :D
Thunder Tiger Phoenix BX
Associated RC18T2/B2 Kit
Walkera 5G4Q3
TechOne Angel
Hiller 450 v2
Futaba 7c 2.4Ghz
Slash 4x4 (sold)

rajathv8

Yeah i need a charger. Thanks man. Will get in tough with you soon. :)

iamahuman

GREAT job Rajat.Really thorough inspection.You know a lot about your car.  {:)}

Waiting to see you,your XXT and racing it. :)
"Chuck Norris once overcharged a lipo. Thank him for the Sun."

SSC LCG Slash 4x4.
JQ THE eCar.

Samanth

where is the RC track in bangalore ? I would love to drop by sometime and meet all you people ! :D
Rcpowers Extra 300
JAS-39 Gripen
F-117 Nighthawk
HK EPP-FPV 1.8m plane
Trex 450 Pro
Spektrum DX6i

Divyam

The track is in Jaynagar (or J.P. Nagar? Confuses me all the time). Its REALLY close to Brigade Millennium..  :)
Thunder Tiger Phoenix BX
Associated RC18T2/B2 Kit
Walkera 5G4Q3
TechOne Angel
Hiller 450 v2
Futaba 7c 2.4Ghz
Slash 4x4 (sold)

iamahuman

I think someone said it was in JP Nagar.But you guys had better ask someone who knows. :D
"Chuck Norris once overcharged a lipo. Thank him for the Sun."

SSC LCG Slash 4x4.
JQ THE eCar.

rajathv8

Thanks Gandhar :)
Yup i pulled it apart for a cleaning and put it back together. couldnt resist :D
I have read the manual and assembly manual also.

I checked on Rotor - they ddint have the antenna tube or the motor screw :( I really hope ModelArt has them else il have to resort to DIY. Looking for alternatives for the antenna tube already - any ideas? Also do you guys think i can get the screw in a normal hardware shop? Worth a try i guess.

Since im getting the charger from Divyam il keep the connector for a while - will change when i get lipos.
Now need to measure the battery bay and get select a lipo.

As for the connector i was planning for 4mm bullets because 5mm bullets do not have the plastic casing and there are chances for wrong polarity ( i am dangerous :D )

The track is in JP nagar 7.5th phase (some say 8th some say 7th phase :D)
Here's a link:
http://www.orkut.com/Community?cmm=95574667


Attaching pics of front and rear assembly.


rajathv8

1. ESC - max 60A
    Things can get crowded and care should be taken to ensure no wire touches the ESC else it can melt the wire insulation.

2. Motor - max 40A
   IBL 36/33 = Inrunner Brushless 36mm dia 3300Kv
    The motor has a rubber cover behind it for dust protection.

    Motors available - 3300Kv, 3900Kv , 4200kv and 6100Kv

3. The motor screw i need is the one marked 3.

iamahuman

damn you're good. :)

Try to check for an antenna tube from anyone else.I'm not sure whether there are standard sizes but you can try.

On the hardware,I don't know.
"Chuck Norris once overcharged a lipo. Thank him for the Sun."

SSC LCG Slash 4x4.
JQ THE eCar.

Divyam

I have an extra antenna tube too, if you want it! And I also have a spare 2400 MaH 7.2v NiMH Ace RC battery with Tamiya connector.. Come to the track and I'll give you all of it :)
Thunder Tiger Phoenix BX
Associated RC18T2/B2 Kit
Walkera 5G4Q3
TechOne Angel
Hiller 450 v2
Futaba 7c 2.4Ghz
Slash 4x4 (sold)

rajathv8

Woah you are a goody bag :D Will do.

rajathv8

Another reason why i bought this - dimensions showed that this would fit in my backpak. This is important for me as i have a bike. Turns out that it is a tight fit - too tight :D. All i need is a slightly bigger bag and im set for the track. Well once i learn to drive that is :D


mail4ajo

Get a good set of tyres. These tyres have hopeless grip unlesss the surface is hard packed or tarmac.

Dont go to hobby shop for screws. Just pull out the other ones and take it to a nice hardaware shop that sells fastners. Blue threadlock it when you get them.

Chuck the Tamiya plugs, they become loose, go for deans/traxxas.
*Mugen Seiki MBX7 with Novarossi P5 engine*
*Mugen Seiki MBX6T M-Spec with Novarossi P5 engine*
*Mugen MBX6 Eco with Mamba Monster 2200kv*
*HPI Mini Recon with BL system*
*Team Losi 1/24 rally*
*Team Associated RC8 onroad GT Car, Team Orion power system coming soon...
*Hobbyking 1/18 Rally Extreme BL*
*Sanwa MT-4 radio*
Previously owned - Mugen Seiki MBX6 M-Spec, Thunder Tiger MTA4 S50, ST-1, Sparrowhawk XB, HPI BAJA 5Bss, TRAXXAS REVO 3.3

ANTA

Tie the spring cups using wire like this before running, otherwise get the spares ready.

himank

Quote from: ANTA on May 17, 2011, 08:00:09 PM
Tie the spring cups using wire like this before running, otherwise get the spares ready.

Excellent tip sir, always faced this Prob.
Great sir, where do u get thse tips from?

rajathv8

#18
Did that :) Thanks for the tip.

These tyres seem quite soft. Will they withstand tarmac?

Divyam thanks for the antenna tube, battery and charger. It fits just fine :)

shashank

I'm a little late but congrats on your truggy man !!! You know your truggy well dude, for the amount of time u've spent with it  :) or am i missing the numerous hours spent researching on which one to get   :P
Traxxas Revo 3.3

rajathv8

Thanks shashank.  :)  Believe it or not the only thing thats in my way from using this truck is a tiny 4mm screw!!!!!!!!!!!!!!!!!!!!!!!!!!!! Grrrrrrrrrrrrrrrrr...........

shashank

Man! I'm in the same situation as you are. Truck is ready for some action but stupid neighbor issues  :banghead: cant wait to hit the track
Traxxas Revo 3.3

rajathv8


Divyam

No problem man!
Waiting to race ALL you guys at the track! :D
Thunder Tiger Phoenix BX
Associated RC18T2/B2 Kit
Walkera 5G4Q3
TechOne Angel
Hiller 450 v2
Futaba 7c 2.4Ghz
Slash 4x4 (sold)

rajathv8

Searched the whole house for screws today morning. Found 2 cerelac tins full of screws. Searched the entire lot. Found ONE screw with fine threading similar in diameter to the one i needed but was 2cm in length. Then used a hacksaw blade and cut it to 4mm length with great difficulty. It  fit but the head was too big so then filed that down.  And finally it worked!!!! The motor is secure and tight now :) :)

Took it for a test on the road - slowly first then generous on throttle. Hit my neighbours car then drove into a ditch ( quite hard ), after 15 mins on the road (slow :D ) i realized that one shock was leaking. By now the battery was dead. So got it home. Found quite a large stone sitting happily next to the motor - scary! So fixed the shock - i didnt have shock oil so i used coconut oil :D :D . Its kinda fine but not as good as shock oil - will get it soon. Covered the hole on the chassis - completely for the spur and partially for the motor, hoping that the air flow will help in cooling.

Motor and ESC was quite warm but cant call it hot.

Had many people looking from the main road. And neighbour kids as spectators. Haha :D

Pics:

1. DIY motor screw. The actual one is a hex. It is available in a pack of 20 for $7 on tower hobbies.
2. Remaining part of the modified screw :D
3. Cover made form shirt price tag. Made sure that none of the screws are covered.

PS: The shock mod worked! Found a spring cup dangling on the shock.