8421 Mobile Crane Lego Technic everything Power Function

[billieguitar]

The new legos suck, thay're just cheap good-lookers, no longer can I find mechanicly complicated, functional and educational sets like this one. It's simply a pity it's discontinued.

[kokosmx]

great job 5\5



[BraydenXBox360]

yup the new version is 8053

[mrmvk1999]

hi can you hjelp me whit the same project

[matuzikas]

is this the older version? the new version is 8053

[MrLetwix]

Can you send me the instructions please on how to make 8421 remote control.

[achalorocks]

U have to buy it at lego.com 

[BraydenXBox360]

but theres a problem i cant find a place to put the XL-motor to make it drive the crane 1 second ago

i just motorized my crane only with 1 XL-motor about a week ago1 sec ago

sives1pwse you just motorized your crane by putting motors all over the 8421

it probably wasn't ment to be motorized

[thenairolf01]

I got the 8053 to ( Look to mine Video)

[BraydenXBox360]

from preston mall in TX DALLAS FRISCO

8053 is more newer

[BubuSnow93]

@BraydenXBox360 but hte 8053 sucks compared tho the 8421 beast !

[BraydenXBox360]

i got 8053

[Blast1820]

where did u get this

[real18000]

cool

[Jf1elds123]

how did u connect this

[jakewood12]

first off awesome job!

but... the boom doesn't rotate, and I wonder if you could get all eight wheels to turn and put the pwer and differential on atleast 2 wheels?

[bachaddict]

@jakewood12 For all-wheel steering and drive on steered axles, you'd have to design a larger version of this truck from scratch. The necessary pieces can't fit into this one.

[Cognetto]

That Spider gear is awesome

[Pilot4Z8D]

Can you send me the instructions please on how to make 8421 remote control, if you will then I will send you my email in your youtube inbox

[lorirocks777]

The only thing left is to motorise the turning of the arm...

[Matty231]

Mean!!! Open diff looks so sweet.

[omarbaaghil]

very nice!

[lorirocks777]

I'm not sure if you've seen my video... but mine's similar except I couldn't put the boom on after Adding my power functions... I should've put in more time! A couple of your motor placements look similar to mine =)

[SunDeathStar]

sorry i'm so noob, but, for me that i don't now hot to asemble it, is it easy to put fully automatic? and what about the remote control, is easy to install?

thanks

[GamingElf]

The instructions are very detailed and easy to follow. Don't worry, it's made that maybe not a child, but an older teen can make it.

[UnrealGlider]

I would NOT put that on the table, lol :)

Nice work

[9TheManiac]

That pretty nice