LEGO remote controlled dune buggy - NXTDuneBuggy

[iPhoneSDKDeveloper]

woah!!!! how did you make it controlled by the joypad?!!!???

[NXTLiftBoy]

@iPhoneSDKDeveloper

it is a long story, see my homepage on MOCPages.

Pity i cannot insert a url here.

In short, i wrote a Java app against various libs to get DirectX input (JXInput) and translate into BT commands to the NXT (Lejos' iCommand).

[lomtafix]

nice buggy

[skylorz]

did you used a difirentail???

[NXTLiftBoy]

no differential was used.

the computer calculates the required speeds of the left and right motors each, depending on the steering angle of the third motor.

[skylorz]

how did you did that with the joystick???

[NXTLiftBoy]

long story, see my homepage on MOCPages

[thePECAFE]

nice....

[NXTLiftBoy]

thx

[Steutisteut]

als ik

[NXTLiftBoy]

idd dat is beter Nederlands :)

[Steutisteut]

je komt uit nl net als mij

[NXTLiftBoy]

klopt :)

[bazmarc]

Hi There, very cool buggy indeed!

so no sensor ports used only BT correct?

[NXTLiftBoy]

Hello bazmarc!

Yes this is just BT.

LEGO firmware on the brick receives BT commands from iCommand on a PC with Java.

A Java application periodically translates mouse/joystick input into Motor.setSpeed() on the iCommand API.

Just hoping that this makes some sense to you... either way, it was sure fun to drive it!

Few weeks ago i took it apart, now i am very satisfied with the NXTSkidSteerLoader i made. Will take some time to properly 'document' it. So now you know what's in the works, bye!

[pysen9333]

finaly :D make Instructions! :D

[NXTLiftBoy]

sorry for the huge delay on this one....:)

[pysen9333]

but thx :D:D:D::DD:D:DD:D:D:D:DD::D:D:­D:D:DD

[legoMan104]

just one nxt set right?

[NXTLiftBoy]

yep, a single retail set.

of course unless i seriously err, like i did on the Liebherr MK80, where i overlooked a second long axle NOT being in the two sets we used.

[NXTLiftBoy]

BTW if you rebuild it, mind you that this thing is hard to program and drive without the software or formulae i derived, so there is a challenge after building it....

let me know if any of you need help

[mxcnprd10]

lol @ 1:30 when he takes out the camera.

Very nice dude, as always.

How many kits do you have and how much did it cost you ?

[NXTLiftBoy]

This is from the single LEGO Mindstorms NXT retail set i have. It is very expensive imo, but i have been playing it for years now. That set got me 'hooked' on motorising technic sets from LEGO, so now i have bulldozer, excavator, hauler, truck, front loader (very old as well as new one) offroader...

I try to buy cheap, but still it must all in all be in the upper hundreds of euros.

thx for your comments:)

[ShoalinFunny]

once again it is perfection. :D

[NXTLiftBoy]

Thx ShoalinFunny

[752ada]

you are very good at making videos

[NXTLiftBoy]

thx!

[MiklosRabi]

Very nice! The Joystick remote is great.

[NXTLiftBoy]

Glad you like it

[trucks105]

Nice buggy u have done a great job

[NXTLiftBoy]

Thanks!