[MVRC] Mantium Virtual Racecar Challenge 2022 (Grand Prix Cars)

[Alonso Fan]

Red bull f1 model. Wonder if its attainable and if it can be used as a control? https://sketchfab.com/3d-models/red-bul ... b39366cafe

[Alonso Fan]

i'm using blender and when i import the guides, they're 100 times too large and rotated about the x axis. so i scaled it down and rotated to the correct orientation. so when i export my car to stl, will i need to scale it back up and rotate again? or is this just a freecad or obj file thing? i opened the freecad file and exported it as obj and then opened that in blender.

[CAEdevice]

Hi, a proposal about the floor strakes.
Considering that their extruded shape and costant thickness are mandatory and that they are included into the high resolution folder, would it be possible to reduce the thickness to 5mm instead of 10mm? They look very thick compared to the pictures of real cars.

[spacehead3]

A question about rule 13.1 (mirrors): does it mean that a kind of winglet with oval shape would be allowed, but an airbag foil (reverse, with concavity oriented towards the ground) would not be allowed?

https://www.cuemath.com/geometry/convex ... functions/

Further question on this: Surely it cannot be convex in all 3 X, Y, and Z planes? Especially in the Y plane we need to be able to curve it back to the chassis, no?

[CAEdevice]

A question about rule 13.1 (mirrors): does it mean that a kind of winglet with oval shape would be allowed, but an airbag foil (reverse, with concavity oriented towards the ground) would not be allowed?

https://www.cuemath.com/geometry/convex ... functions/

Further question on this: Surely it cannot be convex in all 3 X, Y, and Z planes? Especially in the Y plane we need to be able to curve it back to the chassis, no?

Too late After studying the meaning of "convex" I had to change my design. Now mirrors are attached using a sloping straight rod.

[spacehead3]

https://www.cuemath.com/geometry/convex ... functions/

Further question on this: Surely it cannot be convex in all 3 X, Y, and Z planes? Especially in the Y plane we need to be able to curve it back to the chassis, no?

Too late After studying the meaning of "convex" I had to change my design. Now mirrors are attached using a sloping straight rod.

Yeah, that's what I ended up with as well. It works but I would be surprised if some people don't miss this rule.

[CAEdevice]

Also the rear wing manadatory volumes/surfaces will not be easy to be compliant with.

[LVDH]

i'm using blender and when i import the guides, they're 100 times too large and rotated about the x axis. so i scaled it down and rotated to the correct orientation. so when i export my car to stl, will i need to scale it back up and rotate again? or is this just a freecad or obj file thing? i opened the freecad file and exported it as obj and then opened that in blender.

You might have some strange default settings in your Blender. But importing stl files always have these issues on every software. Just make sure to develop a good import and export workflow that works for you. MantiumFlow has a check for the overall dimensions of the car. It is slightly broken right now for the minimum z dimension. I will update it tomorrow. If MFlow then doe snot complain about your car, you know that it is OK. If it does, you have to check your export. The car should be at negative X in the nose area, positive X at the rear wing, y- Axis is through the wheels and Z from plank to roll-bar.

Further question on this: Surely it cannot be convex in all 3 X, Y, and Z planes? Especially in the Y plane we need to be able to curve it back to the chassis, no?

Too late After studying the meaning of "convex" I had to change my design. Now mirrors are attached using a sloping straight rod.

Yeah, that's what I ended up with as well. It works but I would be surprised if some people don't miss this rule.

Sounds like checking the cars for the first race will be a lot of fun.

[samuel_l25]

When I try and run the case I get this text in the command window:

"MFlow.py:882: DeprecationWarning: onst QString &QProcess.startDetached(c command) is deprecated"

Anyone else had this problem?

running on windows

[LVDH]

hmmmmmm. I'm going to guess something has gone wrong with my .stl files...

https://cdn.discordapp.com/attachments/ ... nknown.png

The car dimension check should now work. I just uploaded a new version.

When I try and run the case I get this text in the command window:

"MFlow.py:882: DeprecationWarning: onst QString &QProcess.startDetached(c command) is deprecated"

Anyone else had this problem?

running on windows

I think this is just to annoy you. The software itself runs, right?

[CAEdevice]

Hi, I was wondering if we rally need to include wheels and dummy rims (rule 2.1) in the submission, considering that they are common parts.

[LVDH]

Hi, I was wondering if we rally need to include wheels and dummy rims (rule 2.1) in the submission, considering that they are common parts.

Ah, the perks of not having anyone review the rules before they get posted.
You are right, contenders should not submit mandatory MAND_* parts. During sim setup, I delete them and copy my files into the correct folders.


Everyone should have received an email yesterday with the car submission link. Please keep in mind that it is the teams' responsibility to submit the car in time! If you do not have the link, please check your spam folders, make sure, you actually signed up for the new season, get in touch with me,...

[samuel_l25]

hmmmmmm. I'm going to guess something has gone wrong with my .stl files...

https://cdn.discordapp.com/attachments/ ... nknown.png

The car dimension check should now work. I just uploaded a new version.

When I try and run the case I get this text in the command window:

"MFlow.py:882: DeprecationWarning: onst QString &QProcess.startDetached(c command) is deprecated"

Anyone else had this problem?

running on windows

I think this is just to annoy you. The software itself runs, right?

I can 'Build Case' which it does do. When I click 'Run Case' I get that line of text in the command window (although doesn't show in the MFlow.log) then nothing else happens even after waiting 40 minutes.

I have just tried running a 2020 MVRC based car that I made last year and it surprisingly works using MFlow_2207d...

Shark tutorial also works with MFlow_2207d.

[CAEdevice]

Hi, a question about rule 12.6 (floor strakes).

Can the strakes pass through the floor and be visible from above, provided that they still are simple extrusions?

[LVDH]

hmmmmmm. I'm going to guess something has gone wrong with my .stl files...

https://cdn.discordapp.com/attachments/ ... nknown.png

The car dimension check should now work. I just uploaded a new version.

When I try and run the case I get this text in the command window:

"MFlow.py:882: DeprecationWarning: onst QString &QProcess.startDetached(c command) is deprecated"

Anyone else had this problem?

running on windows

I think this is just to annoy you. The software itself runs, right?

I can 'Build Case' which it does do. When I click 'Run Case' I get that line of text in the command window (although doesn't show in the MFlow.log) then nothing else happens even after waiting 40 minutes.



I have just tried running a 2020 MVRC based car that I made last year and it surprisingly works using MFlow_2207d...

Shark tutorial also works with MFlow_2207d.

Sounds like something is then wrong with you CAD data. If you, like, you can send it to me, so I can have a look.

Hi, a question about rule 12.6 (floor strakes).

Can the strakes pass through the floor and be visible from above, provided that they still are simple extrusions?

I think, they have to stay in their volume. But I kind of think, it could be possible.



I forwarded emails to some people, which did not get the mail for race 1. I hope everybody now has a submission link. There will be a reminder email this weekend.