Tag Archives: Mining Truck

Dumping Cat

As has been documented here before, TLCB Team – as a rule – dislike cats. We appreciate that’s a controversial thing to say on the internet, which is very possibly ruled by cats, so prevalent is their content, but we’ve probably said worse.

We do like this cat though, Sariel’s huge Caterpillar 797F dump truck – which is currently filled with Elves riding it up and down the corridor here at TLCB Towers – and it’s packed with functions.

Firstly, that enormous bucket they’re piled into features a remotely operable dumping mechanism thanks to a Mindstorms EV3 IR sensor, which we’ll test out on our unsuspecting workers shortly. The choice of a Mindstorms control unit is an usual one, as they don’t often feature in models here at TLCB, but Sariel’s decision to use one is rather cunning…

The Mindstorms EV3 not only controls the tipping bucket, it also measures the suspension tilt and applies an automatic motorised correction to keep the Caterpillar level. Self-levelling suspension is a system relatively common on SUVs (as well as mining trucks), but it’s one that requires such ridiculous ingenuity in Lego form that we don’t even know how Sariel began. But then our cleverness peaked with the title on today’s other post, so it’s no surprise that this is way over our heads.

Sariel’s Caterpillar also features remote control drive and steering via LEGO’s Power Functions system, non-LEGO ‘Baja Claw’ RC tyres fitted to standard LEGO wheels, and a host of accurate details and decals to replicate the real 797F.

A complete gallery of imagery is available to view at Sariel’s Caterpillar 797F Flickr album by clicking here and you can join the discussion plus watch a video the the model in action (including a demonstration of the clever suspension) by visiting the Eurobricks forum here.

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Elf Mining

Whir… Crunch. Whir… Crunch. Unhappy – if familiar – noises floated down the corridor and into TLCB Office today. TLCB staff looked at one another. One writer was eating a packet of crisps, one was rocking gently backwards and forwards in the corner, lips moving furiously repeating the words ‘not again… not again…’ following a recent Elven event, and one was pretending to take an important phone call. Sigh. This writer got up and trudged out of the office, knowing full well what he’d find.

What he found – as expected – were several Elves limping around in circles, and a couple more squashed into the carpet, having been run over by one of their colleague’s finds. The find in question was the model pictured here, a rather excellent fully RC Technic recreation of the world’s largest articulated mining truck, the Atlas Copco MT85.

Built by Superkoala of Eurobricks, this replica of the MT85 is controlled via a third-party BuWizz bluetooth brick, which delivers power to all six-wheels, the articulated and rear axle steering, plus the tipping bucket. Said BuWizz brick also unlocks up to eight times the power of LEGO’s own Power Functions battery system, giving the model a surprising burst of speed and explaining the Elven casualties.

Superkoala’s creation had also been rather cunningly filled with a variety of office objects to make it heavier, thus maximising its smushing ability. Hiding behind a pot plant was the Elf responsible, from which the controls were swiftly taken a meal-token begrudgingly awarded.

Whilst this writer tidies up, and has a well deserved drive of the Atlas Copco himself, you can see all the images and full build details at the Eurobricks discussion forum by clicking here, plus you can also watch the creation in action via the video below.

YouTube Video

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