[MVRC] Mantium Virtual Racecar Challenge 2025 (Grand Prix Cars)

[CAEdevice]

there's still a beam, just been renamed the brace

Thanks!

Finally here is the "beam wing" ("brace"):



Considering the small allowed volume, the role of the beam wing is more of a structural support for the side bulkheads of the rear wing. You'll find this volume in the next release, along with small changes that go in the direction of more freedom for the front suspension (permissible volume cylinder radius increased by 5mm) and a small reduction in the rear clearance of the rollbar.

[CAEdevice]

Hi, how do we plan to manage the radius of curvature? The geometry included in the volumes "Sidepods" and "Engine cover" has limitations on the radius of curvature (R50, R100, R75...): I would suggest simplifying with more design freedom, accepting a curvature larger than R50. If it is not possible to verify by automated control, we could include the verification of this rule in the "specific" on-demand checks and verify by CAD locally or even by manual verification (sphere that must be able to rest on the indicated point, in tangency, without exceeding the surface.

[AlexTitaneGP]

Hi Everyone

What is inside a reference volume?
The script verifies if your parts fit within the reference volumes by rendering images of a scene containing both your parts and the reference volumes.

However, Z-fighting can occur in cases where two co-planar faces (like your geometry and a reference volume face) overlap. This could make some parts appear illegal. Example of Z-fighting:
https://i.imgur.com/K8axFty.png
So, it would be best to avoid this in your designs.

Wow, this automated scrutineering looks awesome ! many thanks. Just a quick thought on the Z-fighting stuff, I'm not sure I fully get the problem, what about offsetting the MVRC reference volume for the legalitycheck (like by 0.05mm or something) so that if a competitor cut his CAD with RefVolume it would remain legal (as I guess it should be ?)

[Koldskaal]

Hi, how do we plan to manage the radius of curvature? The geometry included in the volumes "Sidepods" and "Engine cover" has limitations on the radius of curvature (R50, R100, R75...): I would suggest simplifying with more design freedom, accepting a curvature larger than R50. If it is not possible to verify by automated control, we could include the verification of this rule in the "specific" on-demand checks and verify by CAD locally or even by manual verification (sphere that must be able to rest on the indicated point, in tangency, without exceeding the surface.

I have an idea for automatically checking radius. But it will require a quite a bit of work, as you cannot really check curvature radius on stls. The idea goes somthing like this: link
We are, however, already introducing a lot of new stuff for this season already, so imo we can discuss implementing this for next season.

Hi Everyone

What is inside a reference volume?
...

Wow, this automated scrutineering looks awesome ! many thanks. Just a quick thought on the Z-fighting stuff, I'm not sure I fully get the problem, what about offsetting the MVRC reference volume for the legalitycheck (like by 0.05mm or something) so that if a competitor cut his CAD with RefVolume it would remain legal (as I guess it should be ?)

I can see your point. I will look into possible fixes, but I dont think that having two sets of volumes is the right solution.

Here is the latest version of the technical regulation draft:
https://docs.google.com/document/d/14Uw ... sp=sharing
To fully replicate the F1 rules, we need quite a number of seperate parts for the frontwing, floor and rearwing. If you notice areas that can be combined or simplified then please comment here, or in the document. Hopefully we can agree on something soon and get the season started.

[yinlad]

I have an idea for automatically checking radius. But it will require a quite a bit of work, as you cannot really check curvature radius on stls. The idea goes something like this: link
We are, however, already introducing a lot of new stuff for this season already, so imo we can discuss implementing this for next season.

Not really a fan of this at first glance as this just won't work with how my modelling and export flow is set up, and I don't that we should be dictating that to people. Not only that but if someone has various thicknesses throughout the bodywork it wont work at all to use a flat 10mm thicken operation for everyone. If I've misunderstood this in any way I'm happy to reassess with a better understanding.

If we are enforcing a minimum radius to prevent a certain exploitations in the bodywork volume it should be pretty apparent with an eye check if anyone is not adhering to this. With the standard images provided prior to every race there should be plenty of time also for other competitors to inspect and lodge complaints with cars they feel are breaking this rule.

[CAEdevice]

Hello everyone, this is the release R05 of the regulated volumes and the common parts.

There are no major changes: I tried to reduce the size of the rollbar and the engine through photos of the 2024-2025 cars. The volumes related to the sidepods and the engine cover have been separated from the rest (as originally), in case we decided to apply the rule of the minimum radius of curvature. I added a little more volume for the front suspension fairings.

The following link is valid for 3 days, as usual: https://www.dropbox.com/t/GLRil8dRZcOEunmg

This version is definitive from my point of view, I am waiting for indications from Christian and André for any changes

[yinlad]

Hello everyone, this is the release R05 of the regulated volumes and the common parts.

There are no major changes: I tried to reduce the size of the rollbar and the engine through photos of the 2024-2025 cars. The volumes related to the sidepods and the engine cover have been separated from the rest (as originally), in case we decided to apply the rule of the minimum radius of curvature. I added a little more volume for the front suspension fairings.

The following link is valid for 3 days, as usual: https://www.dropbox.com/t/GLRil8dRZcOEunmg

This version is definitive from my point of view, I am waiting for indications from Christian and André for any changes

Does it include wheel translation and addition of camber? Or is this more about the reg volumes and less about finalised mandatory parts

this feels way too tight

[LVDH]

I am pretty busy getting MFlow ready for the newest OF and the new season. I put figuring out the rules into your hands.
Things are almost done on that side. Likely, next Monday, there will be a new MFlow and updated Challenge page.

[CAEdevice]

Hello everyone, this is the release R05 of the regulated volumes and the common parts.

There are no major changes: I tried to reduce the size of the rollbar and the engine through photos of the 2024-2025 cars. The volumes related to the sidepods and the engine cover have been separated from the rest (as originally), in case we decided to apply the rule of the minimum radius of curvature. I added a little more volume for the front suspension fairings.

The following link is valid for 3 days, as usual: https://www.dropbox.com/t/GLRil8dRZcOEunmg

This version is definitive from my point of view, I am waiting for indications from Christian and André for any changes

Does it include wheel translation and addition of camber? Or is this more about the reg volumes and less about finalised mandatory parts

https://i.imgur.com/TujWt7g.png this feels way too tight

No, the wheels (and the floor distance) will be repositioned by LDVH as part of the model for simulation. I expect a minimum of camber, at least at the front. The volumes provided are mainly a reference for writing the rules.

[yinlad]

I ran a first test using the top of the engine as 'engineIn', it works very well. Adds a nice element to the modelling challenge too, to have to shape the inlet within the engine cover

[Koldskaal]

Hello everyone, this is the release R05 of the regulated volumes and the common parts.

There are no major changes: I tried to reduce the size of the rollbar and the engine through photos of the 2024-2025 cars. The volumes related to the sidepods and the engine cover have been separated from the rest (as originally), in case we decided to apply the rule of the minimum radius of curvature. I added a little more volume for the front suspension fairings.

The following link is valid for 3 days, as usual: https://www.dropbox.com/t/GLRil8dRZcOEunmg

This version is definitive from my point of view, I am waiting for indications from Christian and André for any changes

I have a few small things I would like to change, mainly to make scrutineering easier. I figured it would be faster to make the changes myself.

Here are my changes: link to CAD *Edit: updated link

I have also simplified some of the rules a bit. Version 0.3 of the draft can be found here: link to Rules

[LVDH]

I ran a first test using the top of the engine as 'engineIn', it works very well. Adds a nice element to the modelling challenge too, to have to shape the inlet within the engine cover

Interesting idea. You only did this for fun though? It is not something we are going to have in the rules, right?

I am looking at what Matteo and Christian did. I think we are on a very good path. so hopefully, I can sit down and publish a first version of the files and rules this weekend. Does anyone have any input esp. regarding ideas to simplify the volumes and rules around them?

[yinlad]

I ran a first test using the top of the engine as 'engineIn', it works very well. Adds a nice element to the modelling challenge too, to have to shape the inlet within the engine cover

Interesting idea. You only did this for fun though? It is not something we are going to have in the rules, right?

I am looking at what Matteo and Christian did. I think we are on a very good path. so hopefully, I can sit down and publish a first version of the files and rules this weekend. Does anyone have any input esp. regarding ideas to simplify the volumes and rules around them?

It's the proposed rule as it stands, or that is my understanding. There is no airbox mandatory part in the current cad files or the WIP regulations.

[k.ko100v]

Hello everyone, this is the release R05 of the regulated volumes and the common parts.

There are no major changes: I tried to reduce the size of the rollbar and the engine through photos of the 2024-2025 cars. The volumes related to the sidepods and the engine cover have been separated from the rest (as originally), in case we decided to apply the rule of the minimum radius of curvature. I added a little more volume for the front suspension fairings.

The following link is valid for 3 days, as usual: https://www.dropbox.com/t/GLRil8dRZcOEunmg

This version is definitive from my point of view, I am waiting for indications from Christian and André for any changes

I have a few small things I would like to change, mainly to make scrutineering easier. I figured it would be faster to make the changes myself.

Here are my changes: link to CAD *Edit: updated link

I have also simplified some of the rules a bit. Version 0.3 of the draft can be found here: link to Rules

I notice once again that there is almost no gap between the legality volume and the mandatory chassis component.

[CAEdevice]

I notice once again that there is almost no gap between the legality volume and the mandatory chassis component.

Copy