Gimmick

If your phone does dupport it, maybe try to connect the gamepad with an OTG-USB cable to your phone to reduce the load on the bluetooth connection.

Sounds like it's a mechanical monstrosity :D

One extension to two motors? Should be the same as two motors on one port.

Usually the electronics will simply cut off the power and the motors will run slower and completely cut of if the temperature gets too high. Bad electronics will be damaged, worst electronics will create a smoke-cloud ;D

Yes, MouldKing sells licensed models, stolen designs, own designs, advertises c-model-mocs with the TLG a-model.... they go all-in ;) One of the companies I avoid even reading about ;D Each internal connection of each port has a maximum power it can supply a short time and continuous. Plus the whole package has a limited combined power. The maximum stable power delivery per port is usually lower, than the combined power. Therefore the combined power of two motors can be ok for the whole package but not for one port. Depending on the electronics and mechanical contacts two much power can damage the electronics or melt the contacts. Buwizz describes it nicely on their page. And btw. buying copied designs in germany is no problem at all and Amazon is a bad reference, you can even buy products with fake "CE" labels, powerbanks filled with sand,... and so on... xD

You can do what ever you want. The fun always begins when it's about business and that includes promotional gifts, advertising and the actual printing-job itself. But you( = you at home) don't have to care about that.

Too much current.

Depending on what exactly has been copied it's definitely not legally ok - in europe, USA,... most western countries ;) But since it's about companies in china anyway: The consequences are, that you have the choice to either not publish anything anymore and kill most Lego-forums/communities or live with the fact, that companies will copy everything, sell it everywhere and people on youtube and other platforms will present the stolen model/images/... from companies like mouldking as "great insider tip". Like you said "there is moral and there is money" - that also applies to the customers, and even members in this forum buy such stuff ;). But I still think, that the quantity is relatively low. There are more totally fine companies and sources for models than ever before, so unless someone is realy trying or has an addiction problem, it should be possible to fulfill all wishes without shady sellers :D Edit: I'm still loughing and wondering about one seller who added images of some librarians from the US as "staff photo" - and people just don't care and still buy from sites like that xD.

Maybe some of those were old prices. Lego.nl lists the set for 270€. I realy like this set. From the first sight it looks like no flaws + bonus mechanics/features, maybe I rise the bar very high, but the set itself without the pricing looks like a 11/10. :X Therefore a price slightly over 200€ would be something I would accept instantly., because the pure PPP would not reflect that. But 270€ is too much... I will wait for >20% discount after release and place one on my desk :) [except some miracle happens and the technic crane arives :X]

On those images it looks like this model almost perfectly balances out the unsolveable equation of visible-but-hidden-technic-inside + functions + educational behavior + playability + looks + motorization + kind-of-old-fashion/nostalgic-but-new. So i guess there will be a lot discussion about the license and the gear colors :X

@Jayden Hmm, not sure if that's enough. If there realy is variable load on each motor you would have to check the load-%, too. Otherwise you cannot tell if a motor is slow because it wants to fit the others or slow because of load and the system will stop after a few iterations.

That's because the block sets speed until motor turned 5°. You need the speed-block (the one with the arrow up) with only two inputs (ports and speed). Besides that: " I have an application where I need 4 motors to turn at the exact same rate at all times. " What does that mean exactly? The speed is of course always in some relation to power, therefore the speed in % has its limits and the real rpm depends on the properties of every single motor. And if you add different outputs to every motor, the load on each motor will be different. You can tell every motor to turn at 100 % speed as often as you want, if that's beyond the available power it will not reach 100% speed. If you want all 4 motors with different and variable loads turn at the same speed all the time you have to make sure that the maximum load is always below 100 % or you have to track all real RPMs of each motor and slow down every other motor if one or more motors slow down because they reached the load limit.

@Polarlicht maybe try to use use "desktop-website" if the browser you are using supports that option.

Would be nice to see, especially under load :D After thinking a bit about it still seems to be a very "one purpose" part combination - but nowdays with the supercar model...that does not seem like a real argument ^^. Would it be possible to make it extendable with male/female crossaxle connectors?

It's great! How much force do you need for a gear switch, do you think it would be easy to motorize?

Well - maybe? And maybe it's not even a LR13000, but the new LR12500 (because it's new!). And maybe they created show with Liebherr like with the 9800 in Australia. Or maybe it will simply be released summer 2023 :D

@J159753 I don't know, but you can test it by connecting all motors to the hub and start the C+ app. If it does not work, you can still use the PU app.

I think he high pitch sound comes from the calibration process, when the motor runs into the stopper. After that it selects the correct gear. But I'm not sure about the step @ 0:27 it's a bit dark and the cable onn the top left seems to move, maybe check that section again, so nothing gets stuck. You can compair the movements of all outputs and the gear position with this (timecode):

I'm not an plastic/moulding expert so I have to do some assumptions based on my limited experience with Lego parts. And I guess: A design like yours will not work, because I assume, that the axles will bend, the friction will be enormous, the little knobb will not stay inside those grooves, the little plastic noses will get damaged everytime you disengage them.... because all those things already do happen at the currently larger scale. But I do think, that a "linear" gearbox with only 3 or 4 (or 2 xD....haha...) gears (no N, no RC) should be doable with the currently available parts. The concept would be the same, the parts would be a bit less realistic. So the choice I see is not "your design vs the current design" but "a very long, simple, but conceptional more realistic design vs the current version". What would you prefer? Would such a simple gearbox be special enough for a high-end model or would the model actually lose some 'technical magic for everyone'? I don't know ^^. Or is there a point where we have to accept, that there are plastic/Lego problems in a Lego world, that need equivalent solutions? And maybe calling such a gearbox "unrealistic" is not even correct, because it's a real solution for a real problem :D And even maybier they think such a gearbox is the interesting and educational part of the model, and the people do actually try to analyse it xD sry ;p.

Easy to solve! All you have to do is: Find an equivalent large group of buyers, that is interested in such technical details :D I wonder what percentage of people actually do play with sets like the 42055 or even 42100, or if it's more about "what those sets theoretically can do" and it's all like in the astronauts-on-the-moon-meme "It's a display set after all. - It always have been!" ;D

Does this also happen with other speed-related motor-actions?

I'm curious: Does this also happen with other speed related blocks, like angle-with-speed?

The Krokodil train set uses a 88013 with PoweredUp App ;) I don't know if they use power or speed settings, but it has to be compatible. Or "is not compatible" is a strange phrase for admitting the bug ;). Have you tried to set the power level right before re-asigning the speed? Sometimes things like that help to clean things up.

That's at least a new one.