ukbajadave

Supported! The film is a firm favourite in this house and you've really captured it well with the details in the base. Good luck

I currently hold the world record for most Lego pieces kept in my spare bedroom if that helps?

JBL Go Essential. Currently £24.99 at Argos item no. 117 1402. It's a really nice fit if you remove the rubber band phone holder (all easily done) and sounds decent too. I put it with the speaker facing the grille. It's thin enough that the original radio back still fits too. If I was feeling really keen I'd remove the 2921 LBG 1x1 modified brick as well. Then you could rotate the speaker 90° for easy access to the charger port. You could even fit a small power bank in too.

That's a very satisfying thing to watch Nice work.

Thanks to @Carsten Svendsen for the explanation. So in the example below the cylinders currently push to lower the heavy yellow panel box, then have to pull and fight gravity to raise it back to vertical. They would be more efficient attached to the bottom mounting point.

Next question, are pneumatic cylinders stronger pushing or pulling? Instinct says its easier to suck air out than push it in but I suppose they should be equal as you are always pushing the air into either half.

Hmm, I don't usually buy sets anymore as I have enough Lego (according to my wife) but having read the thread and seen the racingbrick video I'm actually tempted by this now. It looks like the functions it has are easy to demonstrate and the decision not to do another defender gearbox was the right one IMO. Most of my sets get parted out for MOCs but I could see this staying built as a display piece because I like G wagens.

What a fantastic choice of subject! I think the 80s square styling will lend itself well to Lego. To me these are incredibly cool cars ever since our rich uncle took us out in his new Rolls Royce Silver Spur. I remember the mascot being spring loaded. Sadly not a feature of the Bentley equivalent though. These can be surprisingly affordable to buy £5000 ebay Bentley but I've always suspected not cheap to run. Until it broke it would be a magnificent place to waft about in though.

What do we think about 3rd party LEDs? I want to add some blinky lights but I could just leave them turned off for the judging...

This looks like something you would build just to see if it was possible. I'm eager to see what it turns out like.

There's no real need as I'm not motorising the drivetrain. I fear the axle may have to go in order to make room for the pistons. On the other hand perhaps I should push myself to find a solution rather than the easy option.

Update. I tend to build mechanisms in isolation and then connect them so I made a fun leaf spring rear axle and a basic front axle and joined them together. Then started work on the sign board getting the range of the pneumatics right. Did the same for the crash cushion. At this point (due to the fact I build things piecemeal) it becomes apparent that the rear axle and crash cushion mount collide and a single large cylinder is not beefy enough to raise the heavy cushion. Also I now realise I've put the sign where the lightboard should be. Good job the deadline is September

I've wanted to do one of these for a while and even mocked some stuff up using the classic 62.4x20 tyre. By entering the contest I'm hoping to push myself a bit with the smaller scale and give myself the incentive to finish a build As per the rules here are some pics showing actual progress (a little) The chassis is bare bones and easy to resize so I can play about with wheelbase and track. It's going to be longer I think. I might try and look at prototype vehicles for a rough scale. It's not going to be RC so no drive or steering motors. Just HOG steering and then 3 or 4 functions. The gearbox appeals to the Technic in me but pneumatics might give me more control over speeds. More progress soon I hope. This sort of thing

Good point. I've added a couple of frames for bracing. The grey 5L beam is a placeholder for the moment.

Yellow is the input shaft, I want 4 separate switchable outputs (the 4 red gears). Is this an optimal solution or am I missing a trick?