MrUnlimited

Question is: are we waiting for this. A clutch means losing energy. I remember Yokomo tried one in the past but it didn't work. Besides that most modern radio's have traction control and most esc can be programmed through esc. I use a Hobbywing esc in my 2011 Avante and set its powervalue to 1 instead of the standard 6. This helps me to decrease the traction.

Another example is in boating: in boating we don't use one since it will loose energy to the prop. There are no cluthes used in electric, nitro or gasboats

ace955

iTrader: (12)

I run traction drive with 1mm springs on a D8 v4 conversion using electric brakes. I love the feel it gives with a slight slip to control traction

bigben1165

iTrader: (9)

you make a good point with the energy loss, but isnt that worth it for racing?

iThinman

i have a DX3R Pro and the traction control is LOL compared to the tekno traction drive

bigben1165

iTrader: (9)

you are saying the traction drive is better then the radio programming? just wondering, hard to pick up sarcasm in a post.

iThinman

yeah, for sure. i found the traction control thing to be a joke. all it seems to do is pulse the motor and lag everything. felt like surfing the web on dialup.

bigben1165

iTrader: (9)

nice! to clear it up for me, is the traction unit like a slipper for the center diff on 1/8 scale? can you adjust it?

iThinman

You adjust the traction drive by the use of larger or smaller springs. seems like either the .9 or 1.0 springs are the popular choice

littlejohn

iTrader: (2)

Just to clarify a little..

Traktion Drive = Slipper clutch like RCM slipperential or a slipper in 1/10
Springs push the shoes out against the clutch bell

ElektriClutch = Centrifugal clutch like in nitro RC or brush cutter.
Springs pull the shoes in away from the clutch bell

IMO, for most of the time in 1/8e the traktion drive setup give the best feel and performance. Can be setup for a bit of slip on take off and drivetrain protection on harsh landings where you might be on power.
I've tried to simulate this via ESC and radio settings, but it's impossible to get the same feel. The electronic means is only a poor mans attempt at trying to simulate these devices.

ElekriClutch is nice when it's really loose and a larger track. Not as effective as in 1/8 nitro as brushless motors have so much torque down low, so the shoes tend to slip a lot more, no matter how thin the springs. It does have the advantage of giving a very nice feeling when coasting and jumping, just like a nitro.


Yes, you do lose a little of that direct drive "feel", but with the amount of bottom end that 1/8 brushless motors have, a slipperential or traktion drive will make your driving more consistent. The main disadvantage I can see with the traktion dive unit, is if the grub screw comes a little loose for whatever reason, the added weight on the shaft can easily bend it.

I'm currently using a longshank pinion until I can work out how to secure the grub screw properly.

bigben1165

iTrader: (9)

great! thanks for all the info.

Pulse_

Up looking for more feedback about the electric clutch/ traktion drive systems

Nogas

iTrader: (7)

I've only tried it in my 6T once and although i felt like i lost a little of the instant punch that i've grown used to with direct drive, i still liked it. I have installed the 1.1mm springs to see if i can get back a bit of that bottom end.

I will be trying it in my buggy for the first time this weekend so will give some feedback on them both next week.

ktacket1

iTrader: (5)

I'm going to try traction drive on my sons EB48. I feel the abruptness of the motor is too much for him. If I like it too, I may need it for mine.

ktacket1

iTrader: (5)

I know this was an old post but I am glad it is here.

murat61

May be it is a nice solution for the sct's and 1/8 2s buggy application to remove heat on electronics.