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Suspension needs & thinking outside the box

Suspension needs & thinking outside the box

Old 01-31-2015, 10:53 PM
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Lightbulb Suspension needs & thinking outside the box

Here's the challenge: I would like to build up some type of suspension dampening system that's light weight and have super low cg. Any ideas are welcome. I don't really want to have the standard shocktowers and coil overs, and not interested in low pro towers/shorty shocks. Here's what I'm working with:



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Old 01-31-2015, 11:10 PM
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Old 01-31-2015, 11:11 PM
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Create your own pull rod suspesion
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Old 01-31-2015, 11:30 PM
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Originally Posted by locked
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I sure do love the design and engineering that went into it, but too fragile imo.
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Old 02-01-2015, 02:45 AM
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spring in the suspension as an old BMT?
http://images.rcuniverse.com/market/...312-2-3763.jpg
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Old 02-01-2015, 03:20 AM
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Low CG you could simply flip over the dampers... But you'd still need the shock towers..
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Old 02-01-2015, 03:28 AM
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Flip over dampers is giving more mass to the suspension.
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Old 02-01-2015, 08:45 AM
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Originally Posted by Roelof
spring in the suspension as an old BMT?
http://images.rcuniverse.com/market/...312-2-3763.jpg
Wow! That's kind of like brushed motor springs. Right? Was there a way to adjust tension? Or would u have to switch out springs? What kind of dampening did it have?
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Old 02-01-2015, 10:30 AM
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Originally Posted by RC Passion
Wow! That's kind of like brushed motor springs. Right? Was there a way to adjust tension? Or would u have to switch out springs? What kind of dampening did it have?
Yes. They are usually referred to as "clock springs". Ride height/corner weight adjustment was via a set screw in the suspension arm (which is visible in the photo). Dampers were conventional piston, just like on 99% of all RC cars. There were a few different springs available, differing in wire diameter to get different spring rates.
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Old 02-01-2015, 01:00 PM
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Originally Posted by RC Passion
I sure do love the design and engineering that went into it, but too fragile imo.
Not a fanboy, but I've seen that car take a lot punishment and keep going
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Old 02-01-2015, 01:55 PM
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Originally Posted by howardcano
Yes. They are usually referred to as "clock springs". Ride height/corner weight adjustment was via a set screw in the suspension arm (which is visible in the photo). Dampers were conventional piston, just like on 99% of all RC cars. There were a few different springs available, differing in wire diameter to get different spring rates.
Thanks! The more ideas the better. I was also looking to achieve on the fly spring tension and suspension dampening. I wonder if spring steel blades would work for spring tension.
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Old 02-01-2015, 02:28 PM
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A flat steel leaf would work fine for springing. Not only does it keep the CG low, but you could arrange to make the active length infinitely adjustable, giving all possible spring rates (within a limited range) using just one leaf... Just like the Awesomatix!

It will be interesting to see what you come up with for low-CG dampers. The Awesomatix rotary damper is a pretty good solution, but maybe there is a better one?
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Old 02-02-2015, 04:04 AM
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Make a solution with pull rod suspension (Not push rod) and place the damper right above the chassis plate.

Dont know if you can make it with your chassis but it would definately be new
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Old 02-02-2015, 04:50 AM
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You might like to try some friction dampers. Try looking for a book called Shock Absorbers Handbook, it´s easily found in pdf, it has a few ideas that you might like to try.

I too agree that the next big RC revolution lies in the dampers design. Today´s dampers are probably just as efficient as 1930´s technology. Lots of hysterisis, and unwanted cavitation, not to mention that they all probably behave linearly. IMO, the solution would be an evolution in the piston design, with a digressive behavior, and lightweight body parts.


Friction Damper
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Old 02-02-2015, 03:35 PM
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What about the Tigermoth LCG V10
http://www.rctech.net/forum/electric...h-lcg-v10.html



You can see how it is assembled here http://www.rc10talk.com/viewtopic.php?f=33&t=34951
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