42172 - McLaren P1

[sm1995]

On 7/10/2024 at 11:30 PM, Lipko said:

I think the truth is between the two models. Bruno's model is overall more accurate, but Lego's version flows better so looks better as a toy car. Bruno's version has a smaller headlight than the original, the Lego has bigger. Actually, either version are accurate at the front, but Lego's is more characteristic, though almost cartoonish.

You hit the nail on the head with this post. I'm planning to try out something along these lines when I get the set, but unsure how realistic any of this is:

1. Lower the headlights by 1 stud, figure out a way to fill the gap above (this will probably be the trickiest, unsure how practical it will be without significant mods)
2. Add a long flexaxle (or combo w/ connectors) underneath the front edge of the hood line
3. Add 2x1x2 wedge with a cut next to the round plate, replace both with white parts since the wedge doesn't come in trans clear

Here is a very crude photoshop of what I want it to look like. I don't think its perfect but closer to the real car

Before:

Spoiler

After:

Spoiler

 

[nerdsforprez]

Is there also a way to use one continuous element, a flex hose or rigid hose (do they come in white?) for the outline of the headlight?  I appreciate the creativity of parts here, but being that the outline is done in such disparate pieces it really doesn't work IMO....

[Oh_Hi_Mao]

I can't get past the fact that from the front it does not look like a P1. It is not easily recognisible model like the rest 1:8 models. Is it lotus? Is it corvette? I could create a poll of some random people on a street and McLaren would not be the most common answer. 5th edition of 1:8 supercar series should at least match it's predecessors in terms of looks. But it did not, in my opinion. Btw they nailed the end, it is perfect. 

[therealjustin]

I agree. The front is the weakest area in terms of looks and it does feel like it was rushed at the end just to get this set out.

Everything rearward of the front wheels is excellent, so with a few modifications I think this could be a fantastic release. Hopefully someone in the community can work their magic and fix it!

[Paul B Technic]

Those changes look good, much improved.

[Bartybum]

6 hours ago, sm1995 said:

You hit the nail on the head with this post. I'm planning to try out something along these lines when I get the set, but unsure how realistic any of this is:

1. Lower the headlights by 1 stud, figure out a way to fill the gap above (this will probably be the trickiest, unsure how practical it will be without significant mods)
2. Add a long flexaxle (or combo w/ connectors) underneath the front edge of the hood line
3. Add 2x1x2 wedge with a cut next to the round plate, replace both with white parts since the wedge doesn't come in trans clear

Here is a very crude photoshop of what I want it to look like. I don't think its perfect but closer to the real car

Before:

*snip*

After:

*snip*

Your modification is starting to get there, but I think two other changes need to be made:

1. The outsides of the headlights should drop well below the contour of the front bumper, not effectively merge with it like in the 570S, see below comparison
2. The top corners of the headlights should be rounded out a bit more

[NV Lego technic]

6 hours ago, therealjustin said:

I agree. The front is the weakest area in terms of looks and it does feel like it was rushed at the end just to get this set out.

Everything rearward of the front wheels is excellent, so with a few modifications I think this could be a fantastic release. Hopefully someone in the community can work their magic and fix it!

That is quite possible, and if so Lego would face a decision to either delay the set like with the 42146, and un my opinion it's the most disappointing set we had in a while, or leave the front screwed up as is.

[R0Sch]

I've fixed the diff in my Studio model. Right photo is from dylanchow's IG.

 

[Auroralampinen]

Well i founded this video this video shows the gearbox and suspension working more closely 

[Oh_Hi_Mao]

2 hours ago, NV Lego technic said:

That is quite possible, and if so Lego would face a decision to either delay the set like with the 42146, and un my opinion it's the most disappointing set we had in a while, or leave the front screwed up as is.

Delay would be possible if McLaren won't accept the design under their license. Which, as we see, was accepted. Judging from the video with a designer, Lego was communicating a lot with McLaren.

Btw, do you own 42146? 

Edited July 13, 2024 by Oh_Hi_Mao

[R4ph]

5 hours ago, NV Lego technic said:

That is quite possible, and if so Lego would face a decision to either delay the set like with the 42146, and un my opinion it's the most disappointing set we had in a while, or leave the front screwed up as is.

The 42146 wasn't offically announced when it got delayed.

The P1 is now at a manufacturing stage and the design has been released, so it's too late to delay it.

[OnyyX]

https://www.newelementary.com/2024/07/lego-technic-parts-review-42172-mclaren.html#more
Article goes in depth with the new parts in the set

[Timewhatistime]

9 hours ago, R0Sch said:

I've fixed the diff in my Studio model. Right photo is from dylanchow's IG.
 

My question doesn't aim at ROSch exclusively...

What's the point of the differential? With one in-/output fixed, there's no purpose of using it, as far as I see.

Edited July 13, 2024 by Milan
Removed quoted images.

[pleegwat]

It introduces an extra 1:2 delay. As-is, the ratio is 1:1, 1:2, 7:9, 3:5, for a total of 7:30. With just a plain 28 tooth gear, it would be 7:15 instead. Regardless, it's probably just trying to be interesting.

[thekoRngear]

37 minutes ago, OnyyX said:

https://www.newelementary.com/2024/07/lego-technic-parts-review-42172-mclaren.html#more
Article goes in depth with the new parts in the set

Thanks.

From the article regarding the new 7x7 wishbones:

Quote

Despite the part's dimensions, it has rather thin plastic. Considering the forces involved in its primary usage, I fear for its integrity during rough play.

Hmm.

Edited July 13, 2024 by thekoRngear

[R4ph]

Racingbrick video is out :

 

[NV Lego technic]

3 hours ago, Oh_Hi_Mao said:

Btw, do you own 42146?

I said that it was a disappointment, why would I pay $700 for less then 3000 parts? Also I'm not really into crawler cranes

 

1 hour ago, R4ph said:

it's too late to delay it.

I said it would have been  delayed and not that it is delayed 

[R0Sch]

2 hours ago, OnyyX said:

https://www.newelementary.com/2024/07/lego-technic-parts-review-42172-mclaren.html#more
Article goes in depth with the new parts in the set

As suspected, the shift drum is not simply a recolor but a new part with aligned axle holes. The new suspension forks are made of a softer material so there is no risk of cracking them on off-road terrain or rough play. Overall a nice parts pack albeit in a new color that will not be useful to MOC'ers with large part collections.

[thekoRngear]

Duckbricks review is out

At around 16:11, was it clicking when it was in the "slowest" gear? 🤔

Edited July 13, 2024 by thekoRngear

[sm1995]

15 hours ago, Bartybum said:

Your modification is starting to get there, but I think two other changes need to be made:

1. The outsides of the headlights should drop well below the contour of the front bumper, not effectively merge with it like in the 570S, see below comparison
2. The top corners of the headlights should be rounded out a bit more

For sure, and those are two really good observations try and iterate on. I think the black bionicle tooth is supposed to be the extension of the light, but it’s too disjointed to actually look like it

Edited July 13, 2024 by Milan
Removed quoted images.

[nerdsforprez]

3 hours ago, sm1995 said:

For sure, and those are two really good observations try and iterate on. I think the black bionicle tooth is supposed to be the extension of the light, but it’s too disjointed to actually look like it

Yes.  As can be seen below, I agree and mentioned it a bit ago.  

On 7/12/2024 at 3:24 PM, nerdsforprez said:

Is there also a way to use one continuous element, a flex hose or rigid hose (do they come in white?) for the outline of the headlight?  I appreciate the creativity of parts here, but being that the outline is done in such disparate pieces it really doesn't work IMO....

 

[2GodBDGlory]

6 hours ago, R0Sch said:

As suspected, the shift drum is not simply a recolor but a new part with aligned axle holes.

Huh, that difference is interesting! I had been expecting the two types to be used together in this set to fill in gaps in each other, but apparently that's not the case. That's likely a good guess about the intended uses of the two being for different sizes of gearbox.

It looks like this one has no real theoretical difference between it and the old orange wave selector, with both engaging at 90 degree intervals. The primary difference, I guess, is that a setup with the new part would have a built-in neutral between every two speeds, allowing you to make an 8-speed by aligning different drums at 45 degree angles. Come to think of it, that's probably what they're doing here. I'd guess there's two four-speeds in parallel, geared slightly differently, and with shift drums offset 45 degrees via the new knob wheel, so the active gear flips back and forth between the left and right gearboxes. It's not exactly how a real dual-clutch transmission works, since there'd have to be clutches for that, but it seems like a pretty decent approximation of it!

 

*I first typed this up in the General Part Discussion thread, then cut it to over here since it made more sense to me. In doing so, I noticed that review videos were up, so maybe my speculations have already been proved or disproved in there!

[2GodBDGlory]

So, after watching that review, I'm intrigued to see that instead of a DNR selector, there's what they're calling a Electric-Neutral-Hybrid selector, with a simulated electric motor that spins in either Electric or Hybrid, but with the V8 only running in Hybrid. This means that there's no reverse gear either here or in the transmission, which seems like a shame, but I know some real-life hybrid supercars have left out a physical reverse gear to save weight, and just relied on reversing their electric motor for going backwards. I'm trying to research that about the P1, but can anyone else confirm if that's the case or not?

The doors here are definitely impressive! I've tried designing a 1:8 MOC of one of these in the past, and making the doors open realistically is a real challenge

[StudWorks]

35 minutes ago, 2GodBDGlory said:

So, after watching that review, I'm intrigued to see that instead of a DNR selector, there's what they're calling a Electric-Neutral-Hybrid selector, with a simulated electric motor that spins in either Electric or Hybrid, but with the V8 only running in Hybrid. This means that there's no reverse gear either here or in the transmission, which seems like a shame, but I know some real-life hybrid supercars have left out a physical reverse gear to save weight, and just relied on reversing their electric motor for going backwards. I'm trying to research that about the P1, but can anyone else confirm if that's the case or not?

The doors here are definitely impressive! I've tried designing a 1:8 MOC of one of these in the past, and making the doors open realistically is a real challenge

Yeah, I believe I remember hearing the P1 uses its electric motor for reversing. Also thank god the butterfly doors don't unrealistically articulate like they did on the SP3, where it was silly (for some reason nobody tried fixing it).

[Stereo]

1 hour ago, 2GodBDGlory said:

It looks like this one has no real theoretical difference between it and the old orange wave selector, with both engaging at 90 degree intervals. The primary difference, I guess, is that a setup with the new part would have a built-in neutral between every two speeds, allowing you to make an 8-speed by aligning different drums at 45 degree angles. Come to think of it, that's probably what they're doing here. I'd guess there's two four-speeds in parallel, geared slightly differently, and with shift drums offset 45 degrees via the new knob wheel, so the active gear flips back and forth between the left and right gearboxes. It's not exactly how a real dual-clutch transmission works, since there'd have to be clutches for that, but it seems like a pretty decent approximation of it!

Scribbly drawing but this is my understanding of the dimensions it uses:

 

Black shafts have the clutch gears on them and are 3+1 offset from the drums, and then 2+1 offset from the secondary shafts in green.  The 2+1 offset fits 36 gear tooth combinations (12+24, 16+20, 20+16, 24+12 all possible with existing clutch parts)

The two sides link via the 45 offset knob gear.

Edited July 13, 2024 by Stereo