Tag Archives: Pneumatic

Digging Cat

Lego Technic Caterpillar 914K

A digging cat usually only means one thing. This gives us a second use for Mr. Airhorn, who is normally only deployed for Elven-related incidents, to rid the office courtyard of the feline scourge.

Today’s digging cat is far more palatable, being this excellent pneumatically-operated Caterpillar 914K front loader from previous bloggee Thirdwigg. With pneumatic cylinders powering the lift and tilt of the boom and bucket, four-wheel-drive linked to a 4-cylinder piston engine, and Hand-of-God articulated steering, Thirdwigg’s Cat could be an official LEGO Technic set from the early 2000s (bring sets like this back please LEGO!).

There’s more to see of Thirdwigg’s Technic Caterpillar 914K at both Flickr and Eurobricks – click on the links to take a look.

Lego Technic Cat Digger

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Cat’s Claw

Lego CAT 434E Remote Control Backhoe

Digging cats. It normally means they’re doing something horrible in your garden. Not today though, because this CAT 434E backhoe is something rather wonderful.

Built by Zbiczasty of Brickshelf it’s near a perfect functioning replica of Caterpillar’s real 4×4 backhoe, complete with no less than fourteen working functions.

The all-wheel-drive is remotely controlled, including remotely operable pneumatic differential locks, pendular front suspension, and three steering modes (front, all, and crab), exactly as per LEGO’s own brilliant 42054 Claas Xerion 5000 tractor set.

Lego CAT 434E Remote Control Backhoe

Of course there’s a working front loader – also powered by remotely controlled pneumatics – with both bucket and boom movement, and a fiendishly complicated pneumatic backhoe with five different movements from elevation to slewing.

Finally there are pneumatic stabiliser legs mounted at the rear and a suite of LED lights. It’s a remarkable machine and one of the most realistically engineered Lego creations that we’ve ever come across.

There’s a whole lot more to see of Zbiczasty’s Caterpillar 434E backhoe at the Brickshelf gallery via the link above, but the only way to really appreciate how well this model works is to watch it in action – check out the video below to see just how good it is.

YouTube Video

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Towing Technic

Lego Technic Truck Trailer RC

We often feature Technic trucks here at The Lego Car Blog, but what they’re designed to pull less so. Even if a trailer is built, it’s often just a rolling slab of Danish plastic without any functionality whatsoever. Not so with Trawson21‘s latest creation, which packs realistic working features into both ends of the build.

Up front the truck includes remote control drive and steering, pendular suspension, and a working piston engine, whilst the huge trailer in tow includes pneumatically operated support legs and access ramps operated via a manual pump and pneumatic switch.

There’s more to see at Trawson’s Brickshelf gallery, where you can also find a link to a video of the model in action – click the link above to check it out.

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Cat’s Claw – Picture Special

Lego Technic Caterpillar 390F

TLCB favourite shineyu is back, and for his latest build he’s built big. This spectacular creation is a fully working replica of the Caterpillar 390F, and it’s absolutely packed with stunning engineering.

Inside the lifelike bodywork are a range of Power Functions motors and infrared receivers that allow the complete remote control of all of the Caterpillar’s functions.

Lego Technic Remote Control Caterpillar 390F

These include independent drive to each track with skid-steering, a motorised turntable enabling the rotation of the superstructure, and a powered on-board compressor.

Able to generate its own air pressure shineyu’s Caterpillar uses LEGO’s pneumatic system to control the boom arm’s elevation and extension, as well as the movement of the grab/claw-type thingumy mounted on the end (if you know what this is actually called let us know in the comments!).

Lego Technic Remote Control Caterpillar 390F

With four small pneumatic cylinders the claw is powerful enough to lift a variety of fruits (lemon pictured above), or – if you’re a TLCB Elf – grab your head really very tightly indeed and then drop you in the food recycling bin. It was strictly in the name of research…

Anyway, whilst we explore the multitude of ways in which this incredible creation can be put to use terrorising our slovenly workforce you can check out all of the top-quality images via the discussion on the Eurobricks forum – click here to join in.

Lego Technic Caterpillar Excavator Power Functions

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Arctic Roll

Arctic 01

It’s Technic! It’s Power Functions! It’s Pneumatic! It can smush 17 Elves into The Lego Car Blog carpet in one go! We’re still scraping up and plumping up our flattened workers after some of their colleagues brought this giant machine into the office. It has the perfect blend of Lego features to excite our excitable workers.

Russian builder Desert752 Kirill’s land leviathan looks as though some of his countrymen have put one of their mighty ice-breaking ships onto tracks. Weighing in at 6.9kg, the handle-like gantry in the middle is actually a handle, so that the machine can be carried around. Click this link to MOCpages to see more of this beast, plus diagrams of the pneumatics and drive-train and lists of all of the PF gear that makes it function. There’s also a video of the Arctic Explorer in action.

Arctic 02

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