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Wheels don't like to go straight

posthy shared this bug 3 years ago
Solved

I don't know what's going on with the wheels, but they're bad. Very bad.. Whenever I build a rover, regardless of the terrain or friction setting they just can't keep the direction. I'm pressing "w" only, do not touch any steering, and my rover wobbles and turns like crazy.

Replies (5)

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Wheels are broken AF- steering is broken meaning you either drift sideways, or can barely turn at any kind of speed. Your rover will also explode if you turn on Share Inertia Tensor when you have wheels close together ( tank-style wheels ). It's hopeless how keen keep on making 'improvements' but don't mention them in the patch notes, and they aren't improvement either- they made the game much worse. It was better before the the patch which means they need to undo every single 'improvement' in order to fix it. FFS.

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Hello,

I have not been able to replicate this issue. Could I please ask for a copy of your save and blueprint? Is this happening with specific wheels?

  • You can access your save files by typing %appdata% into your Windows search bar and you will be redirected to the hidden Roaming folder. After that just follow: \Roaming\SpaceEngineers\Saves. There should be a folder with your SteamID and your saves.

Please zip the file and attach it here. If you are having difficulty attaching files you can optionally use Google Drive. When sharing a google drive link please make sure it is set to be downloadable by anyone with the link

Kind regards,

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Actually the bug report might've been a bit late. The wasteland update made the wheels behave a lot better. They still jiggle around a bit, the rover turns a little when holding only the accelerate button, but it's finally manageable.

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Hello Posthy!

I'm glad the update has helped the wheels. Hopefully they are much more manageable now.

Thank you for letting me know!

Kind Regards

Laura Perry, QA Department

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Wheels tend to wobble slightly and this creates a clang force that is orthogonal to the wheel's rotation axis, and its magnitude is proportional to the wheel's angular velocity so it is more pronounced as your rover increases its linear velocity. This is partly absorbed by the wheel's suspension strength, but only when the clang force is in alignment with the wheel offset axis. This instability is further exacerbated when wheels turn or the suspension compresses and the impulse frequency of the clang forces between the left and right suspensions desynchronize.

This can be demonstrated by comparing an unsecured wheel suspension on max propulsion override to a wheel suspension on max override that is clamped on the opposite side by a rotor mounted on a pair of pistons, using one of the mods to put a rotor head centered on the wheel and with exact spacing taking into account the piston heads and rotor offset. The rotor is turned off with 0nm of braking force.

The free spinning wheel will only wobble slightly, but the clamped wheel which should be vastly more stable will clang immensely.


https://www.engineeringclicks.com/dzhanibekov-effect/

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