amorti

You can order some parts direct from CaDA website. However it's true that the available selection isn't massive.

Now this is exciting. Something missing from CaDA til now, has been unofficial B models on rebrickable. If your model can't be built using only TLG pieces it won't be allowed at rebrickable. I guess you have at least one or two different size alternating beams? I wonder if CaDA would be interested in hosting the instructions, make it more official?

I think the CV joints will be fine. Those front motors look a bit light...

@AVCampos yes it is. There's 3 clutch gears in the AMG, two like that in the doors and an older type one in the spoiler. Or at least, that's what I got. Maybe I got the remnants of the old type?

Too bad for us, but I get it. In any case - congratulations on being a published author!

There we go. That part is broken now. You need the bigger hubs.

Yes, we definitely should. What a lot of gears! What is the grey part above the blue gear? Can you give us any kind of a hint? The theme perhaps? construction equipment? military?

Someone just posted on my BugFixes video that they received one of each worm gear and have one door going up and one down. I'll leave a pinned comment in case anyone goes to the video for that problem. Prune as you see fit, chief. I've mentioned before - it's your ball and I'm just happy you let us play with it

Oh wow... you'd have one door up and one down! This guy's model also has the problem of ArcticGenes. https://youtu.be/cRJ-GXTNBEY?si=h58t4tjQV1cC-aB_ I have grey ones in the new design, so I don't think colour is definitive.

@brunojj1 great observation, would never have thought of it. @efferman Here's the bottom of mine. https://bricksafe.com/files/A_morti/amg-one-/amg-one-eurobricks/20230912_002206.jpg Here's the one from @arcticgenes. It definitely has opposite worm gears to mine.

Me neither at this point. He's told us the functions are not mirrored, shown us the gears are correct, but also told us the motors spin the same direction as expected (I had missed that point). Those things can't all be true. Feels like a video to explain the problem would be best.

But there's exactly the problem. He didn't make a mistake, and yet the doors go up simultaneously with the spoiler going up. It means that one motor is wired in reverse. Since the two function motors are hard coupled through a junction box, you cannot reverse one without reversing the other.

Can be I misunderstood, but here's what I got: He expects the doors to go up while the spoiler goes down as in the instructions. He has the gears all correct as the instructions. It's not working as expected, so must be one motor is reversed. Did you take different notes?

The gears are definitely correct so yes if the doors and spoiler are going up/down together rather than opposing, then one of the motors is wired incorrectly. As above, either request a new motor if you don't mind waiting for it, or swap the bevel gears on both linear actuators if space allows (no parts required but hard to access and you'll be tight against the lighting wires), or figure a way to swap the bevel gear at the doors (motor and gears are accessible but there is a pin in the hole directly opposite so not as easy as it looks to change). It's the first one I've heard where it was wired wrong and 9/10 times it wouldn't matter anyway, but this time it's half of a pair.

So, which CaDA model should I present next? Is the group interested in e.g. the Alfa f1 car?

I think the easiest solution would be to reverse the gears in the linear actuators. I believe CaDA will send a motor, but you'll have to wait for it from China. Still, glad you've worked out the problem and have some options to solve.

If you don't know German: He hasn't finished building it, but does mention it's a more challenging build than Lego with difficulty further increased by being all in black. He specifically says it's built stable. He likes it so far, especially the license and the effort made to exploit it fully e.g. the corresponding special AMG parts and is impressed with the favourable direct photo comparison of the real One to the model. He wishes there were a static version. He also mentions how CaDA parts were always good and now further improved in the last two years; no micro scratches, it's like building with Lego. He must have watched my videos already!

I'd say not really. Forwards works with just the drive motor, because the pullback plus the other motor provide enough resistance on the diff. Reverse doesn't have that, so the power just goes through the diff without moving the car (path of least resistance). I just reverse it on both motors, although I mostly drove outside so far so there's more space and less need to go backwards. I think in reverse there's only the other motor providing resistance. Might work with Lego motors, but CaDA motors are stronger/faster/have less resistance in the planetary reduction (idk, delete as appropriate) and will overpower the resistance of the other motor.

You've summed it up correctly. The differential and pullback behave just as you said. You can tell what it's doing because running just the pullback motor applies enough torque to the drive motor, that it becomes a generator and lights up the LEDs! For those who speak German, the biggest Lego YouTuber in Germany just dropped a review. I haven't watched it yet, let's see what he thinks.

There's only two ways I can see that happening, either one of the motors is wired back to front or you got the bevel gears on the spoiler backwards but both left and right sides. The motor being backwards seems more likely. It should be possible to figure out which is wrong by exactly following the setup instructions in the manual. I guess the correct solution is to tell CaDA what happened and have them send a replacement motor, but if it's the motor in the spoiler it's not easy to access. If you wanted to fix it without a big rebuild, maybe you could use a longer axle for the drive gear of the door mechanism and put that on the other side of the driven gears?

So where are we up to? You're busy criticising a CaDA model after building it with Lego parts but not telling that until halfway through the discussion. No one's denying the gears are a problem for anyone who will press the devil's button combination on the remote (or their kid will, etc). On the plus side it's a simple fix using two 5 cent pieces which most of us have as spares, and if you have a sharp knife and aren't scared to use it then it doesn't even require a big strip-down. The chassis flex criticism isn't a problem. It just isn't. This is a brick toy, it's not an RC model with a carbon or metal base plate, and in that light it is plenty strong. Or maybe in your 'copy' it is a problem due to worn out Lego pins like... Your doors flexing criticism, which is now hilarious, because the cause was a combination of a) not using CaDA parts and b) using worn/subpar Lego parts to build it. I think that'll do for this one.

Doors flexing: you didn't have the CaDA special pieces which make the hinges stronger so yes your statement is correct, that point doesn't count. Chassis flex - depends what you're comparing it to. I never claimed it's as rigid as e.g. the orange tow truck, but it's also nothing like the Lego weird flex Ferrari and now I see that you must know that was a disingenuous comparison. If the licensor wants it in grey, they get it in grey, regardless of what anyone else wants. Red is a good choice though!

I do have an Android Bluetooth pad with USB-b connection. Maybe that'll connect by wire?

I'll give you the one about the clicking gears, but I think we're already clear on that. Regards flex though... You've seen me deliberately grab and twist it to illustrate a different point, and surprisingly enough as a full-grown man yes I can twist some pieces of plastic when I put my mind to it. From that you've compared it directly to the Lego Ferrari which is much smaller and yet immediately bends when you pick it up. Sorry, but your opinion on that point is wrong and ill-informed. Come back when you have actually built it and held it yourself.

Btw, I wouldn't consider myself anti-Lego in terms of the product. I still buy an occasional kit if it brings something new. However it's fair to say I'm anti-monopolies and pro-free market forces.