[MOC] 1:18 flat bed B-Train Trailer Combination with attachable Forkli

[motomatt]

Since I'll probably be taking this apart soon, I thought I'd share this here.

This was supposed to be a build of a simple flat bed trailer for a 1:18 scale big rig truck. After seeing alot of B-train combination trailers being towed on the show "Highway Thru Hell", I thought it would be cool to make this simple flat bed a bit longer. But then I saw that Ingmar (2LegoOrNot2Lego) had previously published a double combination flat bed, albeit with a different linkage geometry. Then one day I saw a truck go by on the road with a forklift attached to the rear... and so I thought it would be cool and a bit unique to add one too :-) And so, this thing was born.

If I still have your attention then it's best to just view the youtube video which shows the trailer, it's powerfunctions, and the forklift in action.

A view from the back showing the mini forklift.

So the trailer combination is about 5 feet long. With the truck and forklift, it's just slightly under 6 feet.

Ok, so driving it isn't that easy, at least if you have furniture around. Trying to park the truck and trailers in reverse is just too hard for me :-)

The front trailer has a small battery box with 6 AAA batteries and two m-motors, one for raising the liftable axle, and one for raising and lowering the trailer legs. Here is a pic of the under-side of the front trailer.

The rear "pup" trailer has two m-motors as well and gets it's power from the front-trailer, or the truck. One m-motor is used to run the elevator liftgtate, and the other raises and lowers the trailer legs. Here is the shorter rear "pup" under-side.

All the tail lights are made to be switched on/off in unison from a remotely controlled pf-switch located in the towing truck.

The whole thing is up on MOCpages http://www.mocpages.com/moc.php/412801

Some more pics can be found on bricksafe http://bricksafe.com.../Btrain_flatbed

Youtube:

[Kiwi_Builder]

Pretty cool

The axle configurations are a bit different to the ones on NZ B-trains, it looks good, I've been wanting to see another B-train. It goes pretty quickly too, what motor/s did you use for propulsion?

[motomatt]

If anyone is interested, full instructions are available to build the front trailer, jeep with fifth wheel, rear pup trailer, and attachable forklift.

http://rebrickable.com/mocs/motomatt/b-train-rocky-mountain-double-flatbed-trailer-combination-wi

[Lakop]

The forklift interests me the most. Great build by the way and thanks for sharing.

H

[Tommy Styrvoky]

Cool model, the forklift is a cool concept, I don't think I have seen a technic forklift mounted on the back of a trailer before.

[timslegos]

I dont know how I missed this the first time around! The truck and trailer combo looks great, especially with the forklift on the back. Forklift seems to work well, though it has no cabin?

tim

[lcvisser]

That is very impressive! The forklift is way cool. Very playable, it seems

I'm a bit puzzled by the side loading lift. Is that actually something you'd find on a truck? Seems dangerous to have something sticking out like that...

Is the truck also your own design? It's very cool

[motomatt]

To be honest, I'm a bit disappointed in how the forklift came out as it's not as playable as I originally envisioned. It's good enough to maneuver empty pallets off and on the flatbed. The biggest problem is that since there is not enough rear counterweight to it, the steering doesn't work quite well if you put much weight onto the forks. Also, to make it remotely attach and dismount onto the trailer would require making it quite bigger, with two separate worm screw driven axles, and I wanted to keep it as small as possible.

I'm a bit puzzled by the side loading lift. Is that actually something you'd find on a truck? Seems dangerous to have something sticking out like that...

I originally made the trailer with the elevator lift at the rear, but then I had the idea to add a forklift. I didn't want to ditch the idea of the lift, since it worked quite well! So with dual trailers, the only way I saw to keep everything was to move the lift off to the side. The lift's floor deck can actually manually swivel from horizontal to vertical when the truck is being set to be driven, so that it doesn't stick out to the side as much. I didn't show that functionality in the video though.

Is the truck also your own design? It's very cool

Yes the truck is a 1:18 Kenworth T680 which I built sometime after the trailer. It's up on MOC pages http://www.mocpages.com/moc.php/413530 Maybe when I build an enclosed cargo trailer for it I'll post it on here.