Collision Problem on Vehicle Model-Skeleton Importing From 3dsmax

[anonymous_user_691b70f0]

Hello everyone,

I have been suffering a problem that happened in Vehicle system in Unreal Engine 4.14.3.
Im trying to make a driveable Huracan into the engine but i got Collision issue :
My car have a good skeleton i think and everything is ok i think , but when i made the blueprint the wheels were having no collision with floor
I have tried to see what happened with pxvis Collision and i have seen that the Wheel cylinder are in the wrong side :

But my physics assets seems to be correctly setup:

So i don’t know why the wheels colliders are like that.

I have made this car using this tutorial : [)
I have been searching how to solve this problem since 2 day (I tried lot of thinks, like rotating the car in 3ds max putting wheels onto kinematic…) But i got everytimes this problem with the cylinder. Can someone help me to fix this ?
Thanks for your help !

[BoredEngineer]

Looks like your wheel bones are not oriented properly, Y is pointing down instead of to the right and Z is pointing to the right instead of up. This is why your wheels get flipped on a side. Have to fix it in modelling software and re-import.

[anonymous_user_691b70f0]

@BoredEngineer;665877

Looks like your wheel bones are not oriented properly, Y is pointing down instead of to the right and Z is pointing to the right instead of up. This is why your wheels get flipped on a side. Have to fix it in modelling software and re-import.

I have tried to fix the axis by exporting like that: (z axis up)

But i dont worked so i have to rotate the bone manually like you said but as im new into 3d modelisation i don’t know how to do it properly can you help me with that:
how to move thes bones?

[BoredEngineer]

Axis conversion won’t rotate bones for you, check how pivot/bone is oriented on wheels in 3dmax.

[Geodav]

i would advise getting in touch with the tutorial author or find other tutorials which show you how to set things up correctly

[anonymous_user_691b70f0]

@BoredEngineer;665900

Axis conversion won’t rotate bones for you, check how pivot/bone is oriented on wheels in 3dmax.

I clicked on rotation mode and then on my Bone but i noticied that they are already rotated:

I don’t know if i’m right but i think it’s because of that i’m getting this problem

[anonymous_user_691b70f0]

@Geodav;665901

i would advise getting in touch with the tutorial author or find other tutorials which show you how to set things up correctly

Yes already tried lot of others tutorials as im trying to solve this since 2 days but i always get the same problem : the wheels collider are in the bad position
So i think this problem may come from my 3d model

[BoredEngineer]

@;665907

I clicked on rotation mode and then on my Bone but i noticied that they are already rotated:

I don’t know if i’m right but i think it’s because of that i’m getting this problem

If I recall correctly, bone shouldn’t be rotated but created as oriented with Z up.
Other thing to check if your wheel mesh is rotated, cause it shouldn’t. For mesh, the easy fix is to ResetXForm and then collapse stack.

[Geodav]

ok here’s a link to my old ut3 tutorials https://www.youtube.com/playlist?list=PL99BB7F255E7526F4

the work flow is very much the same for ue4 except the root bone must be at 0,0,0

you’ll notice i don’t use bones but max objects these work the same but its a lot easier to set/adjust the pivots of them

[anonymous_user_691b70f0]

Ok thanks will try it !