avs

iTrader: (2)

no sorry, the number of coils is very much a factor. the wire diameter and the coild diameter set the flexiblility per coil, the total flexiblity depends on the number of coils.

a simple example put 2 springs in series the stiffness drops in half, cut one spring in half and the stiffness doubles.

InspGadgt

So when are we getting more pics

Radio Active

iTrader: (2)

And here is the working:

http://scienceworld.wolfram.com/phys...sinSeries.html

set k1 = k2 to show the rate halves for two identical springs in series.

However, dialling on pre-load does not change the spring rate, so long as the spring is in the linear region of its working range (e.g. it is not binding).

protc3

iTrader: (13)

Its been a super busy week so far. I will post some new pics hopefully this week. I need to make more parts

howardcano

iTrader: (37)

As a bonus, you end up with free springs for a second car!

old_dude

iTrader: (1)

I will tuck my tail on that one. Always check ones formulas before typing.
This web page is great for calculating rate
http://www.ajdesigner.com/phpspringr...e_equation.php

protc3

iTrader: (13)

I finished the steering spindles today. C Hubs are next

InspGadgt

I'm guessing the king pin(s) will thread into the C-hub from top and bottom seeing as how the axle would be in the way of one going all the way through?

protc3

iTrader: (13)

That is kinda correct. The pins thread into the steering block and pivot in the C Hub

InspGadgt

Personally I would say the link rear end generates too much rear grip for today's tires and bodies. Having a car that generates more mechanical grip both front and rear would free up a lot of new options body and tire wise as less down force would be needed and harder tires that last longer could be ran...the reduced aerodynamic drag and tire friction would make for a faster car. But that would take an entire re-working of bodies and tires as today's bodies and tires are made to maximize rear grip. We could probably go to something like lilac tires all around or potentially even harder and bodies could be made more scale looking with smaller rear wings as aerodynamics would have less of an impact on performance.

But if you want to try a link type suspension...I gots some ideas to try

Lohan

I am rather fascinated with this innovative design. Out of interest I take it that the front end actually has lower wishbones that move up and down unlike the fixed lower arms on most 1/12 pan cars. If that is the case, are you gonna fit front anti roll bars?

I personally reckon that the best 1/12 suspension that I have ever used was on my trinity switchblade - I think the Speedmerchant and the team laje cars still use them.

InspGadgt

The previous BMI had an optional front end which was also a double wishbone suspension and the current Yokomo has a double wishbone suspension. The Yokomo's suspension does need an anti roll bar because it uses a single shock. The new BMI uses 2 shocks, one for each side. Some sort of anti roll bar may help but isn't necessary.

The Switchblade was pretty much just an AE lower arm with a graphite brace connecting the arms and a 2 link upper arm. The Laje is similar to this in design. The Speedmerchant has an optional formula front end that is more like the EV10 and Revolver12 which used a single graphite arm that spanned both sides. Personally of all the dynamic strut type suspensions the EV10 is still my favorite because with the 1 piece graphite arm you don't have uneven arm heights due to molding issues like the plastic arm cars have.

cyrrus

iTrader: (5)

oh man that looks so sweet. Keep up the great work. man can't wait to see the rear pod and the finished front end.

old_dude

iTrader: (1)

At one time Trinity did make a car that was lower wishbone, single shock, sway bar and linkage upper control arm for caster and camber. I recently threw out the parts. It was a very difficult front end to set up and maintain. It also was missing a critical adjustment. The only way to set ride height was to shim the shock internally. A real pain.

Radio Active

iTrader: (2)

Was that car the Magic Carpet Ride? I think this is it:

[IMG=600x800]http://www.rctech.net/forum/attachments/r-c-items-sale-trade/615699d1278969758-trinity-magic-carpet-ride-1-12-4-cell-never-ran-img_0810.jpg[/IMG]