WIP technic bloodhound 4wd race buggy

[Aurorasaurus]

I need some help with my buggy. I can’t figure out how to get Ackermann geometry on my front steering unit and previous steering systems were either too large or unusable. I have been heavily inspired by didumos’s greyhound 4wd rc buggy.

 

photos on bricksafe: https://bricksafe.com/pages/Clev/#

Edited January 3, 2020 by Clev

[Leonardo da Bricki]

To start with, your hubs are inclined inwards. That will not have any good effect on your steering. The top and bottom joints should be connected to the hub in such a way that the wheel is parallel to the chassis, only gaining an incline when turned.

[Aurorasaurus]

I’m fairly sure the hubs are parallel to the chassis, my bad photo taking skills may make it seem otherwise 

[Leonardo da Bricki]

Alright then. To achieve Ackermann geometry, the links that set up the steering system are angled away from the line perpendicular between the wheels. As a result, the steering rack is placed farther in front of or behind the wheels, with the steering links or rods angled back towards the hubs.

Since I don't know how big your setup is going to be, I'd recommend using the Technic Triangles website to figure out what would work best with your build.

@Clev Hope that is of some use!

Edited January 3, 2020 by Leonardo da Bricki

[Didumos69]

9 hours ago, Leonardo da Bricki said:

To achieve Ackermann geometry, the links that set up the steering system are angled away from the line perpendicular between the wheels. As a result, the steering rack is placed farther in front of or behind the wheels, with the steering links or rods angled back towards the hubs.

That's one way, but having angled links will make your steering sensitive to bumps. The links secure the hubs best when they are place perpendicular to the wheels.

Another way to implement Ackermann steering is by moving the ball joints connecting the links to the hub closer to the wheels when the steering rack is in front of the wheels, or away from the wheels when the steering rack is behind the wheels.

@Clev, your hubs are friction locked, meaning the hubs may come apart by applying downforce only.

Edited January 4, 2020 by Didumos69

[Aurorasaurus]

Thanks for the help! I will attempt to implement the suggested solutions.