Tekno clutch w/ RCMonster Center Diff Mount? - RC-Monster Forums

Finnster · **Tekno clutch w/ RCMonster Center Diff Mount? -** 07.29.2008, 09:18 PM

Hey I was just wondering if anyone has tried using a Tekno clutch w/ their RCM motor mount in a truggy/buggy?

Just doing some thought experiments and some measurements. Its seems like if you turned the CD around so the spur was away from the mount, a clutch should about fit, but I'm not sure just how long the clutch adapter w/ flywheel is. Should be close tho, but a few too mm may be too much.

Adjusting the mesh w/ the motor screws may be a real PITA tho w/ the clutch on.

07.29.2008, 09:55 PM

i think that is how jhautz did it, it worked

and yeah you would have to take off the cb to change mesh i think

07.29.2008, 09:58 PM

its a little ways down here

http://www.rc-monster.com/forum/showthread.php?t=10437

Finnster · 07.29.2008, 11:11 PM

hahaha that's perfect, Jeff would be the guy to do it. :)

That kinda answers my next question about how much servo you need for brakes, and if a mini servo would be good enough. I know the 2055 servo on my Revo was fine for brakes. Seems like most nitro guys go high end for the thr control instead of brakes but not too sure. hmmmmmmmmm

jhautz · 12:52 AM

In a nitro it needs to pull the throtle and the throtle return spring on top of pulling the brake. It takes a little more power, plus its constantly under load operating the throtle and the brake. With this mini setup the servo only sees action when I'm on the brake which is probably less than 2% of the time.

Just as an FYI I fried 2 of those Hitec mini servos. I finally found a mini JR DS3421 servo that is holding up well. Its about the same specs as the Hitec, a bit more expensive, but it handles the load better. I also designed a better plate for the servo and brake mounting and had Mike machine it up for me. The whole setup has also been transfered to the XT8 truggy. Ive been running the brake in there all season so far and its holding up great. I actually really like it in the truggy much better than in the buggy. It allows you to drive the corners more with the throttle and brake. The buggy doesnt benefit as much and I just went back to the normal motor brake.

Heres an updated picture of the truggy with the updated brake setup if your interested.

http://i66.photobucket.com/albums/h2...n/CIMG3371.jpg
http://i66.photobucket.com/albums/h2...n/CIMG3367.jpg

BTW: Heres the like to the original thread on the clutch setup as I was working on it.
http://www.rc-monster.com/forum/showthread.php?t=9049

07.30.2008, 03:47 AM

Quote:

Originally Posted by jhautz

In a nitro it needs to pull the throtle and the throtle return spring on top of pulling the brake. It takes a little more power, plus its constantly under load operating the throtle and the brake. With this mini setup the servo only sees action when I'm on the brake which is probably less than 2% of the time.

Just as an FYI I fried 2 of those Hitec mini servos. I finally found a mini JR DS3421 servo that is holding up well. Its about the same specs as the Hitec, a bit more expensive, but it handles the load better. I also designed a better plate for the servo and brake mounting and had Mike machine it up for me. The whole setup has also been transfered to the XT8 truggy. Ive been running the brake in there all season so far and its holding up great. I actually really like it in the truggy much better than in the buggy. It allows you to drive the corners more with the throttle and brake. The buggy doesnt benefit as much and I just went back to the normal motor brake.

Heres an updated picture of the truggy with the updated brake setup if your interested.

http://i66.photobucket.com/albums/h2...n/CIMG3371.jpg
http://i66.photobucket.com/albums/h2...n/CIMG3367.jpg

BTW: Heres the like to the original thread on the clutch setup as I was working on it.
http://www.rc-monster.com/forum/showthread.php?t=9049

Do you think the mech brakes don't benefit the buggy as much because of it's lighter weight ?

Truggy being heavier the brake bias should help a lot.I know my friends with truggy conversions keep there mech brakes.
TeknoRC is releasing one of there conversions for the X2 which i will try out as i have never driven anything with a clutch or brake bias before .

Will be keeping esc , motor braking in the buggy though .

jhautz · 07.30.2008, 02:06 PM

Actually, at least for my driving style the bias advantage on the buggy isnt really a factor for me. I tend to drive as smooth of a line as I can and rarely tryu and kick the rear end out to rotate around the turn. The 808 I drive turns in so well that I dont really need to drive like that. If you drive a buggy that has less turn in or is set up differently the brake bias may be more of an advantage.

With the truggy I tend to corner more with the brake and thottle snapping the rear end out a bit and getting on the throotle to power through the corner. It works better for me with the truggy so the brake bias helps more.

Anyway, thats what I found. Everyone likes something different though.

07.30.2008, 06:49 PM

Quote:

Originally Posted by jhautz

Actually, at least for my driving style the bias advantage on the buggy isnt really a factor for me. I tend to drive as smooth of a line as I can and rarely tryu and kick the rear end out to rotate around the turn. The 808 I drive turns in so well that I dont really need to drive like that. If you drive a buggy that has less turn in or is set up differently the brake bias may be more of an advantage.

With the truggy I tend to corner more with the brake and thottle snapping the rear end out a bit and getting on the throotle to power through the corner. It works better for me with the truggy so the brake bias helps more.

Anyway, thats what I found. Everyone likes something different though.

Nice explanation , thanks .

Finnster · 07.31.2008, 04:34 PM

My big thing is I really miss the mech brakes I had on my Revo, I just like the feel of them much more. I'll give motor braking another shot when I get the MMM in, but we'll see. I actually like the direct drive quite a bit, but I may give the clutch a shot sometime to try something different

Its funny tho, I had been thinking about different brake servo mounts for a while and one of the ideas was having a pivoting linkage kinda like you've got, but w/ a full size servo mounted in rear and using a 90* pivot on the brakes. Later plans were to just bend the brake pins 90* lol as its way simpler (if everything clears and pins are bend right)

I like your setup, looks nice, light, and compact.