Rover digs forward

[technion]

Hey guys,

This is my first attempt at a rover so I'm sure this is a stupid question. Why does this keep digging itself forward?

It does it regardless of SAS, and it does it as soon as the physics kick in, before trying to drive anywhere. As you can see, it doesn't appear to have all its weight at the front.

Edited December 8, 2013 by technion

[maltesh]

Look at the alignment of the hubs of the front wheels, and compare it to the alignment of the hubs of the rear wheels. The front wheels are actually "higher" on the craft than the rear wheels are because they were rotated on placement. As a result, the rover tilts forward like a table with two short legs.

[Jananton]

If the spring plate of the wheel isn't the right way up the wheels tend to sink into the ground, I noticed that too.

I can't remember seeing this effect in v. 0.21, so I'm unsure if this could be considered a bug in v.0.22, or that it has to do with the added spring damping effect.

Greets,

Jan

[J.Random]

Just reattach wheels correctly, with two "bolt heads" looking straight up.

[Deathsoul097]

Due to the way unity works, wheels only work when one specific part of the surface is touching the ground, meaning that your wheels have to have the bolts facing upwards in order to work. (Think of it as having a skid that magically pulls you across the surface when the bottom touches the ground. What you are basically doing is rotating that skid so that it faces straight up, making the bottom no longer touching the ground and no longer working.) This is the way wheels have always worked I unity, and has been in the game since wheels were added.