# FSAE Meshing Errors/Help! **URL:** \ **Category:** CAD & Meshing\ **Created:** [February 21, 2018, 6:12pm UTC](https://www.simscale.com/forum/t/fsae-meshing-errors-help/81725 "2018-02-21T18:12:11Z")\ **Posts on this page:** 1\ **Showing post:** 9
**Author:** ![mmccann](https://www.simscale.com/forum/user_avatar/www.simscale.com/mmccann/32/18319_2.png) [@mmccann](https://www.simscale.com/forum/u/mmccann)\ **Post date:** [February 26, 2018, 6:29pm UTC](https://www.simscale.com/forum/t/fsae-meshing-errors-help/81725/9 "2018-02-26T18:29:41Z")
Good afternoon @jousefm, I am assuming that you are talking about the background mesh box that is too small? What would a good size be for it? (Or a general recommendation?) I have been using some of this tutorial to help me! > [@Step-by-Step Tutorial Session 2 - Full Car Aerodynamics (Part 1)](https://www.simscale.com/forum/t/step-by-step-tutorial-session-2-full-car-aerodynamics-part-1/78878): > > Recording Homework Submission Your homework is to investigate the Full car model FSAE Full Car with a radiator using the [porous media approach](https://www.simscale.com/docs/content/simulation/model/advancedConcepts/porousMedia/porousMedia.html), rotating wheels using the [rotating wheel boundary condition](https://www.simscale.com/docs/content/simulation/model/boundaryConditionTypes/OF_rotatingWallVelocity.html), and rotation of the car rims using [Multi Reference Frame (MRF)](https://www.simscale.com/docs/content/simulation/model/advancedConcepts/rotatingZones/rotatingZones.html). For this case, the front wing flap angle of 0 degrees will be considered and the velocity of the car will be set at a constant 20 m/s. The step-by-step tutorial below contains all of the steps for setting up the simulation in Si… --- _[View the full topic](https://www.simscale.com/forum/t/fsae-meshing-errors-help/81725)._