Vehicle wheels don't turn/all turn/crash?

Development World Creation
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1

Hello all!

I am having problem with my vehicle that I have created, I can’t seem to get the wheels to turn correct and with some configuration on the wheels, UE4 crashes.

I have tried according to this tutorial, How to Set up Vehicles in Unreal Engine | Unreal Engine 5.1 Documentation

I have tried setting up the vehicle according to this,https://docs.unrealengine.com/latest/INT/Engine/Physics/Vehicles/VehcileContentCreation/

I have followed this tutorial on youtube,

Here are some pictures of how it looks like:

In the two pictures below, I am turning right.(Different wheel and wheel bp setup)

26515-hull_all_turning.png
26515-hull_all_turning.png3840×1200 685 KB

26517-hull_holding_d.png
26517-hull_holding_d.png3840×1200 742 KB

In the picture below, I am turning left.

26518-hull_holding_a.png
26518-hull_holding_a.png3840×1200 744 KB

I have read through all of what I have found on the answerhub and the forums and I haven’t been able to find anything that helps.

I have tried (some examples):

  • With or without bones
  • Different FBX exports (i.e. 2014, 2013 etc.)
  • Deleting history in Maya before export
  • Moving bone and/or pivot to 0,0,0

Have tried all kinds of things I have found around the forums etc. but nothing has helped.

Modeling software: Maya 2015
Windows 7 Sp1

I am thankful for all the help and tips I can get :slight_smile:

2

This seems like an issue with the order you named the wheels in your vehicle BP. Can you post a screenshot of your wheels setup in the vehicle BP please?

3

Also if you make a new project based on the normal vehicle templates, the sedan it comes with will have a skeleton like this that rotates and turns the front wheels. You can pick apart how it’s rigged and animated and make yours match that. Or even import your mesh as skeleton mesh and believe you can tell it to use the sedan’s skeleton as long as you named your pieces the same way as the sedans.

4

Thank you for your replies!
I have posted in the forum about this too, and Geodav managed to help me to get it to work.
Thread: Vehicle disappearing when turning - World Creation - Unreal Engine Forums
It had to do with orientation of the pivots and bones of my model.
I named the wheels in order: 1 left front 2 right front 3 left rear 4 right rear
It was according to the vehicle template :slight_smile:

5

The answer is in this forum thread! Vehicle disappearing when turning - World Creation - Unreal Engine Forums