The problem with the wheel block design and a quick fix + some recommendations

gruller65 shared this feedback 20 days ago
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youtube vid provided

https://youtu.be/YVxw4DQGgOg

The suspension can’t always use the travel it already has.

Especially with some of the medium-sized wheels, the wheel sits so close to the suspension block that it bottoms out before the suspension can fully compress.


And when that happens, the suspension assembly itself starts taking the impact—which can damage or completely destroy the block.

So here’s my small recommendation:

Give us a lift-spindle or wheel-offset option.

Basically, allow us to move the wheel center down slightly—maybe 0.25 or 0.5 meters depending on the wheel size.

That gives the wheel more clearance at full compression without fundamentally changing how the suspension works.

Now, if changing the model itself is too much to ask, there is another option:

Give us more control over how the suspension behaves throughout its travel.

For example, the first third of the suspension could be very soft for absorbing small bumps.

The middle third could become progressively stiffer.

And then the final third could become very stiff, with a hard limit before the wheel actually reaches the suspension block.

That could produce a similar result by preventing the suspension from compressing far enough to bottom itself out.

I still don’t think that’s the ideal solution, because you’re artificially limiting suspension travel instead of actually giving the wheel more clearance.

But if Keen simply wants to give us better suspension settings, I think something like progressive stiffness could still help a lot.

And while we’re doing that, I’d also like the ability to move the wheel slightly inward or outward horizontally.

That would give builders more control over track width and vehicle stability without forcing them to redesign the entire body around the suspension.

For vehicles that are right on the edge of being stable, even a small outward offset could make a noticeable difference.

Same basic block.

Same suspension.

Just more usable travel and more control over wheel placement.

I think these changes could make off-road vehicles significantly more stable and give builders a lot more flexibility without fundamentally changing how wheels work.

---some recomendations

Now, if changing the wheel position itself is too much to ask, there’s another way this could be handled.

Give us a custom suspension curve.

Basically, imagine a vertical bar in the suspension menu representing the full travel of the wheel.

The player could place different points along that bar and set the spring strength for each section.

So maybe the first third is very soft for soaking up small bumps.

The middle gets noticeably stiffer.

And then the final section becomes extremely stiff, basically acting as a bump stop before the wheel can actually bottom out against the suspension block.

And importantly, those sections wouldn’t have to be fixed.

The player could decide where each section starts and ends depending on the vehicle they’re building.

I still think physically giving the wheel more clearance would be the better solution, because this artificially limits some of the suspension travel.

But if Keen wants to solve it through better suspension controls instead, something like this would give us a lot more control than just having one spring-strength setting for the entire range of motion.

Best Answer

Replies (6)

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the fix

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That effectively solves both


Suspension bottoms out on itself in real life, you use bump stops ( a small rubber round thing that absorbs the impact to the frame ) that’s the issue, it’s 90% clearance you add and adding the extra 1/3 of the suspension that currently does not even get used

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Well researched. Great post and suggestion 👏

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The solution already exists in SE1 for this issue with this mod: https://steamcommunity.com/workshop/filedetails/?id=2727185097


Dis is da way brudduh!

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this doesn't actually solve the issue in this post, it solves the issue of the chassis hitting bumps but the issue of the wheels bottoming out on their own suspension can still occur.

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That effectively solves both

Suspension bottoms out on itself in real life, you use bump stops ( a small rubber round thing that absorbs the impact to the frame ) that’s the issue, it’s 90% clearance you add and adding the extra 1/3 of the suspension that currently does not even get used

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This. Also, "power" and "torque" are not the same thing. I want a rover to go slowly but be able to climb hills more effectively. It needs a lot more grip on the ground.

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Also, "torque" and "grip" are not the same. Torque divided by wheel radius gives the driving force the motor can exert on the wheel's diameter. Grip is how well the tire can resist sliding or spinning in place. This approximately follows the formula Grip Force = contact force times coefficient of friction. On level ground the contact force is mass times gravity, and Grip Force = coefficient of friction times weight.

Last time I checked, the grip while braking was ridiculously high. It is the torque that is lacking for the hill climb. I suggest:

  • Improve the torque
  • Reduce grip to what a high end braking system with good tires can produce in real life. With some internet research I found that some real life sports cars in 1g gravity can stop withing 90 feet when decelerating from 60 mph on asphalt. That approximately amounts to a deceleration of 1.4 g and a coefficient of friction of 1.4. Maybe allow SE2 wheels a maximum coefficient of friction of 1.5 under optimal circumstances. That would be generous.

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Drop axels are the way!!!

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