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Posted
On 6/3/2025 at 1:01 PM, Zerobricks said:

Yes, noticed it with the App Transformation Vehicle. The new one is more matte and much softer and can break up easier.

I also experienced issues with softer link, but with the yellow on the D11 thought.

 

With any given thread tension, it will snap or lose the threads if you try to climb hard things too much (like another lego RC for sumo fight for exemple).

 

BUT :

 

with the same thread stucture, mounted with old black links it doesn't snap even if you tension it enough so it can never lose threads. (The rest of the toy is different so it do not have the same weight, but it's in the same range)

  • 3 weeks later...
Posted

Well... yeah. We don't need neutral coloured  3L pin/axle with pin, but orange-white hub parts. :D Just a "What If...?" moment. What if they made the pins for the same colour as the outside of the model? So a yellow here, a green there, etc. 

Posted
5 hours ago, Jockos said:

Just a "What If...?" moment. What if they made the pins for the same colour as the outside of the model? So a yellow here, a green there, etc. 

No, because Technic is too difficult to construct already and all us Technic builders are dumbasses and we need all the consistent colour coding we can to help us…bless them.

Posted
10 hours ago, Jockos said:

Well... yeah. We don't need neutral coloured  3L pin/axle with pin, but orange-white hub parts. :D

Just what I thought.. but I'd be inclined to think that the recolor request came from Nike, to make these parts blend in more..

Posted (edited)

I wonder if we use a buwizz buggy motor + the large vinyl pieces from that technic race yaught (42174 ) but as helicopter blades, if it will fly? 

81zs4enIpPL._AC_SL1500_.jpg

Edited by SNIPE
Posted (edited)
3 hours ago, SNIPE said:

I wonder if we use a buwizz buggy motor + the large vinyl pieces from that technic race yaught (42174 ) but as helicopter blades, if it will fly? 

*snip*

Possibly worth testing. The momentum theory calculations to get initial power estimates vs rotational speed shouldn't be particularly challenging here.

Some potential practical challenges:

  • Low aspect ratio of the sail will lead to aerodynamic losses compared to a blade with high aspect ratio, will increase the required flight power. You can somewhat offset this by mounting the blades further out to increase the effective span, as long as you replace the inboard span
  • Flutter at high rotational speeds due to the thinness of the blade may cause resonance issues. You can tune this with tip weights to minimize torsion
  • The rigid leading edge will introduce aerodynamic penalties due to turbulent flow. You can somewhat mitigate this if it's on the underside of the blade (the pressure side)
  • Rotors are inherently unstable so you'll either need a swashplate with active control, or the whole rotor needs to be mounted on a gimbal. Depending on the system loads, this may be infeasible with Lego ball joints (which have a high amount of slack)
Edited by Bartybum
Posted
6 hours ago, SNIPE said:

I wonder if we use a buwizz buggy motor + the large vinyl pieces from that technic race yaught (42174 ) but as helicopter blades, if it will fly?

There are nice videos on YouTube of people trying various ways to get lift with Lego. They might give you some inspiration. :pir-sweet: My favorite:

 

 

Posted (edited)
35 minutes ago, astyanax said:

There are nice videos on YouTube of people trying various ways to get lift with Lego. They might give you some inspiration. :pir-sweet: My favorite:

*snip*

Oh my god I've always seen the thumbnail to this video but never got around to actually watching it. That's incredible. Probably helps that it uses higher voltage electronics :P

Edited by Bartybum
Posted
1 hour ago, Jockos said:

I was wondering if 42215's shovel is a one-time use, or perhaps a future set (let's say a backhoe loader) will contain it, too . 

I wonder same with the 42209 shovel. And the 42100 shovel was not seen on any other set. 

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