Red Bull RB21

A place to discuss the characteristics of the cars in Formula One, both current as well as historical. Laptimes, driver worshipping and team chatter do not belong here.
Silent Storm
Silent Storm
111
Joined: 02 Feb 2015, 18:42

Re: Red Bull RB21

Post

AR3-GP wrote:
04 Apr 2025, 04:26
The rear brake tin looks 3D printed. Those parts were made in a hurry.
Different material for less or more heat transfer? GP told Max to try a different "test cycle on braking" so they are looking at either getting rears upto temperature or not overheat.
The cheapest sort of pride is national pride, every miserable fool who has nothing at all of which he can be proud adopts, as a last resource, pride in the nation to which he belongs; thus reimbursing himself for his own inferiority.

User avatar
Zynerji
111
Joined: 27 Jan 2016, 16:14

Re: Red Bull RB21

Post

AR3-GP wrote:
04 Apr 2025, 04:26
The rear brake tin looks 3D printed. Those parts were made in a hurry.
It's the future, actually.

Henk_v
Henk_v
87
Joined: 24 Feb 2022, 13:41

Re: Red Bull RB21

Post

Hurrying is the name of the game.

Farnborough
Farnborough
111
Joined: 18 Mar 2023, 14:15

Re: Red Bull RB21

Post

Zynerji wrote:
04 Apr 2025, 05:55
AR3-GP wrote:
04 Apr 2025, 04:26
The rear brake tin looks 3D printed. Those parts were made in a hurry.
It's the future, actually.
Its already here in the present :D additive manufacturing it's currently called :)

That component although not strictly structural, is heat sensitive and needs construction to mitigate that condition.

It could be the opposite, manufactured in light plastic by 3d print, mould made with that inside by initially spray surfacing, to then cast in something like magnesium alloy by pouring into the mould in displacement of the original structural plastic by melting.

OR metal fused "powder" in matrix construction.

User avatar
Zynerji
111
Joined: 27 Jan 2016, 16:14

Re: Red Bull RB21

Post

Farnborough wrote:
04 Apr 2025, 09:07
Zynerji wrote:
04 Apr 2025, 05:55
AR3-GP wrote:
04 Apr 2025, 04:26
The rear brake tin looks 3D printed. Those parts were made in a hurry.
It's the future, actually.
Its already here in the present :D additive manufacturing it's currently called :)

That component although not strictly structural, is heat sensitive and needs construction to mitigate that condition.

It could be the opposite, manufactured in light plastic by 3d print, mould made with that inside by initially spray surfacing, to then cast in something like magnesium alloy by pouring into the mould in displacement of the original structural plastic by melting.

OR metal fused "powder" in matrix construction.
Looks SLS powder printed to me.

Henk_v
Henk_v
87
Joined: 24 Feb 2022, 13:41

Re: Red Bull RB21

Post

Metal printig is ubiquitous allready. And for sure in F1. I bet most if not all of the metal inserts you see in the carbon work is 3D printed.

As for judging from a photo, it is kind of hard to distinguish 3D printed, milled or a cast from a 3D printed plug. Even when holding a part, I've been fooled a few times. Sometimes it is really hard to tell if it is milled and blasted or 3D printed.

3D printing metal is really, really expensive if you need it in "F1 grade". For a cake tin I'd expect it to be speed-milled on a combined mill/lathe machine. It is both faster and cheaper at this scale. It can also be quite a bit lighter as there is more control over the temper af the metal. A printed part is in essence always made from solidified molten metal. With heat treatment this can be improved, but I'd expect a cake-tin to warp too much in heat treatment to obtain the right tolrances.

User avatar
ispano6
157
Joined: 09 Mar 2017, 23:56
Location: my playseat

Re: Red Bull RB21

Post

Good that they addressed the engine cover. Now they have to bring forward the mid-chassis updates and slim down the bulbous nose over the next couple of weeks and make the leading floor area more effective and get more stable downforce there. Then they should be able to trim down the rear wing main plane and static flap angle. The front wing endplates could also be flattened a bit but that could reduce its desired pointiness up front. It looks like the floor is where the focus should be but that takes time.

Edit:
For the one who called this "Complete Nonsense and down-rated", care to explain your logic?
Mine is from an assessment of comparison between the RB21 and VCARB02, which the data shows is a more stable platform.

Cassius
Cassius
9
Joined: 23 Sep 2019, 11:54

Re: Red Bull RB21

Post

ispano6 wrote:
04 Apr 2025, 17:30
Good that they addressed the engine cover. Now they have to bring forward the mid-chassis updates and slim down the bulbous nose over the next couple of weeks and make the leading floor area more effective and get more stable downforce there. Then they should be able to trim down the rear wing main plane and static flap angle. The front wing endplates could also be flattened a bit but that could reduce its desired pointiness up front. It looks like the floor is where the focus should be but that takes time.

Edit:
For the one who called this "Complete Nonsense and down-rated", care to explain your logic?
Mine is from an assessment of comparison between the RB21 and VCARB02, which the data shows is a more stable platform.
I agree with the person who commented. You sound like a typical armchair aero expert. Max has stated the issues they have, car switching from under to oversteer, depending on track tep, tyre, asphalt, etc. are difficult to solve.

User avatar
organic
1109
Joined: 08 Jan 2022, 02:24
Location: Cambridge, UK

Re: Red Bull RB21

Post

Good view of the engine cover change for Japan by Nicolas carpentiers

Image

101FlyingDutchman
101FlyingDutchman
18
Joined: 27 Feb 2019, 12:01

Re: Red Bull RB21

Post

Interesting that by basically mucking around with absolutely everything trackside they’re able to extract more lap time. I wonder if those correlation issues are a lot more severe than first thought. Because simply going from sim to track, the car does not behave at all in the same manner.

Farnborough
Farnborough
111
Joined: 18 Mar 2023, 14:15

Re: Red Bull RB21

Post

Henk_v wrote:
04 Apr 2025, 15:41
Metal printig is ubiquitous allready. And for sure in F1. I bet most if not all of the metal inserts you see in the carbon work is 3D printed.

As for judging from a photo, it is kind of hard to distinguish 3D printed, milled or a cast from a 3D printed plug. Even when holding a part, I've been fooled a few times. Sometimes it is really hard to tell if it is milled and blasted or 3D printed.

3D printing metal is really, really expensive if you need it in "F1 grade". For a cake tin I'd expect it to be speed-milled on a combined mill/lathe machine. It is both faster and cheaper at this scale. It can also be quite a bit lighter as there is more control over the temper af the metal. A printed part is in essence always made from solidified molten metal. With heat treatment this can be improved, but I'd expect a cake-tin to warp too much in heat treatment to obtain the right tolrances.
Yes, agree with this.

Milling I'm not so sure as with that thin cross sectional "wall" its difficult to cut substantially into form without support as the structure starts "ringing" like a bell, ordinarily that is. Tool chatter being another risk as the form moves relative to spindle etc. Quite possible, but still time consuming.

As you note, to pick up, feel and closely examine would be more definitive.

AR3-GP
AR3-GP
368
Joined: 06 Jul 2021, 01:22

Re: Red Bull RB21

Post

organic wrote:
05 Apr 2025, 14:32
Good view of the engine cover change for Japan by Nicolas carpentiers

https://i.imgur.com/m83X3s4.jpeg
On the surface I cannot fathom how this could make a difference. This really is a sport of the tiniest of details... :wtf:
A lion must kill its prey.

Henk_v
Henk_v
87
Joined: 24 Feb 2022, 13:41

Re: Red Bull RB21

Post

Farnborough wrote:
05 Apr 2025, 14:39
Henk_v wrote:
04 Apr 2025, 15:41
Metal printig is ubiquitous allready. And for sure in F1. I bet most if not all of the metal inserts you see in the carbon work is 3D printed.

As for judging from a photo, it is kind of hard to distinguish 3D printed, milled or a cast from a 3D printed plug. Even when holding a part, I've been fooled a few times. Sometimes it is really hard to tell if it is milled and blasted or 3D printed.

3D printing metal is really, really expensive if you need it in "F1 grade". For a cake tin I'd expect it to be speed-milled on a combined mill/lathe machine. It is both faster and cheaper at this scale. It can also be quite a bit lighter as there is more control over the temper af the metal. A printed part is in essence always made from solidified molten metal. With heat treatment this can be improved, but I'd expect a cake-tin to warp too much in heat treatment to obtain the right tolrances.
Yes, agree with this.

Milling I'm not so sure as with that thin cross sectional "wall" its difficult to cut substantially into form without support as the structure starts "ringing" like a bell, ordinarily that is. Tool chatter being another risk as the form moves relative to spindle etc. Quite possible, but still time consuming.

As you note, to pick up, feel and closely examine would be more definitive.
I've been in charge if several milling/turning workshops and there are many, many ways to mill such a tin very quickly with a small wall tickets in high quality.

3D printing is very forgiving for geometry and does not require setting op/programming, but it is really slow. The printing takes much more time than Milling and after that. You need to wait quite some time for the print bed to cool. Each part has it's own best way to produce.

Farnborough
Farnborough
111
Joined: 18 Mar 2023, 14:15

Re: Red Bull RB21

Post

Henk_v wrote:
05 Apr 2025, 18:53
Farnborough wrote:
05 Apr 2025, 14:39
Henk_v wrote:
04 Apr 2025, 15:41
Metal printig is ubiquitous allready. And for sure in F1. I bet most if not all of the metal inserts you see in the carbon work is 3D printed.

As for judging from a photo, it is kind of hard to distinguish 3D printed, milled or a cast from a 3D printed plug. Even when holding a part, I've been fooled a few times. Sometimes it is really hard to tell if it is milled and blasted or 3D printed.

3D printing metal is really, really expensive if you need it in "F1 grade". For a cake tin I'd expect it to be speed-milled on a combined mill/lathe machine. It is both faster and cheaper at this scale. It can also be quite a bit lighter as there is more control over the temper af the metal. A printed part is in essence always made from solidified molten metal. With heat treatment this can be improved, but I'd expect a cake-tin to warp too much in heat treatment to obtain the right tolrances.
Yes, agree with this.

Milling I'm not so sure as with that thin cross sectional "wall" its difficult to cut substantially into form without support as the structure starts "ringing" like a bell, ordinarily that is. Tool chatter being another risk as the form moves relative to spindle etc. Quite possible, but still time consuming.

As you note, to pick up, feel and closely examine would be more definitive.
I've been in charge if several milling/turning workshops and there are many, many ways to mill such a tin very quickly with a small wall tickets in high quality.

3D printing is very forgiving for geometry and does not require setting op/programming, but it is really slow. The printing takes much more time than Milling and after that. You need to wait quite some time for the print bed to cool. Each part has it's own best way to produce.
Have you seen the "array" of printing machines, different "print" method etc the teams run in factory ? They can run many (effectively multi thread) stations simultaneously to cram time as needed.

Out sourcing too, there's many UK contractors that feed into that field, effectively to shrink time with specialist service.