What IS bump steer?

[jhedsy]

I've tried searching but all I can come up with are people talking about bump steer issues.. I have herd it over and over and can't wrap my head around it.. :?:

 

[Duuuuuuuude]

Bump steer is when the steering angle changes with suspension movement. You really won't see that on anything other than rigs with chassis mounted servos.

 

[nukegm426]

or weak servos. usually see this question on 1:1 rigs and it's usually only an issue at speed lol.

 

[War Pig]

Picture this...the rod that goes from your chassis mounted servo arm to your knuckle is at an angle. As your suspension compresses, the rod pushes out on your knuckles causing you tires to steer to one side without the servo arm moving. A panhard bar at the same angle as your steering rod will allow the axle to swing in and arc from side to side, and get rid of the bump steer.

Hope that helps a little.

 

[Duuuuuuuude]

A panhard bar at the same angle as your steering rod will allow the axle to swing in and arc from side to side, and get rid of the bump steer.

It also helps if the panhard bar and steering rod are the same lenth as well...

 

[JeremyH]

It also helps if the panhard bar and steering rod are the same lenth as well...

And sit at the same angle...."thumbsup"

 

[Maxx_Savage]

or weak servos. usually see this question on 1:1 rigs and it's usually only an issue at speed lol.

No this isn't bump steer.

 

[RCHuffer]

Picture this...the rod that goes from your chassis mounted servo arm to your knuckle is at an angle. As your suspension compresses, the rod pushes out on your knuckles causing you tires to steer to one side without the servo arm moving. A panhard bar at the same angle as your steering rod will allow the axle to swing in and arc from side to side, and get rid of the bump steer.

Hope that helps a little.

Thanks I learned something new.