R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 01-22-2013, 05:19 PM   #1
Tech Regular
 
M3Armand's Avatar
 
Join Date: Aug 2010
Location: Boston, MA
Posts: 263
Exclamation "Floating Servo" holder - why would I want it?

Can someone explain to me why would I want a "floating servo" holder? For many, many years, we've always wanted for the steering servo to be fully locked down to the chassis. Now, it appears that we want it to "float"?

Can someone explain why would I want this now?
__________________
Durango DEX210, SpeedMerchant REV4, HB TCX, Traxxas EMaxx, HPI RS4 Pro, Tamiya TA02, Yokomo YZ10, Associated RC10 Team Car, Bolink Eliminator 10, Kyosho Optima, Tamiya HotShot, Tamiya Grasshopper
M3Armand is offline   Reply With Quote
Old 01-22-2013, 05:23 PM   #2
Tech Champion
 
TryHard's Avatar
 
Join Date: Jun 2004
Location: Sydney, NSW
Posts: 5,284
Trader Rating: 4 (100%+)
Default

Fully locking down the servo in the traditional way has a small influence on the flex of the car on the side of the servo. In effect, your putting a brace across the chassis, limiting flex.
'Floating' mounts do away with the bracing effect, by having a central mounting location, allowing the chassis under the servo to flex freely, theoretically evening up the flex.

HiH
Ed
__________________
| THard.co.uk | Xray | MuchMore |
TryHard is offline   Reply With Quote
Old 01-22-2013, 05:30 PM   #3
Tech Elite
 
Francis M.'s Avatar
 
Join Date: Apr 2002
Location: Yorba Linda, CA
Posts: 4,719
Trader Rating: 2 (100%+)
Default

imo it's more about getting the chasis more semetrical and not have a peice of the chasis hanging out 5 to 8mm just to secure the servo down on the outside......
Francis M. is offline   Reply With Quote
Old 01-22-2013, 05:49 PM   #4
Tech Fanatic
 
alcyon's Avatar
 
Join Date: Feb 2006
Location: kuala lumpur,malaysia
Posts: 954
Trader Rating: 8 (100%+)
Default

hmmm. interesting, any examples of this new innovation? i would like to learn more.
__________________
http://kawada-alcyon.blogspot.com/
http://superturbooptimamidspecialzx-5.blogspot.com/
kawada sv10 alcyon 3-sanwa mx3x-orca vx v4.1 software-team powers 13.5 motor-turnigy 4200 shorty lipo-savox 1251 servo RIDE RE32
alcyon is offline   Reply With Quote
Old 01-22-2013, 05:52 PM   #5
Tech Adept
 
Join Date: Aug 2010
Posts: 217
Default

With a traditional side fixed servo and the current flex levels in the cars, an unwanted steering action is created.

This is because the bulkheads and steering pulleys run along the centre line of the chassis bracing it, and flex along the centre is limited, but the servo mounted on the edge moving with flex can move more relative to this centre line. The result is just by flexing the car you get a steering effect.
With a floating servo mount you'll notice they all pick up their mounting point along the centre line of the chassis and so flex and move about at the same rate as the bulkheads and steering pulleys. The end result is you can flex the chassis about all you want and the servo and steering pulleys just all move together and you get no unwanted steering affect.

Not bracing the chassis on one corner evening out flex and preventing tweak is an added bonus of doing this.

Last edited by YZFAndy; 01-22-2013 at 06:05 PM.
YZFAndy is offline   Reply With Quote
Old 01-22-2013, 06:15 PM   #6
Tech Lord
 
syndr0me's Avatar
 
Join Date: Dec 2004
Location: 5280 Raceway
Posts: 13,140
Trader Rating: 32 (100%+)
Default

Nubs rub in the sweeper and make the car harder to drive.
syndr0me is offline   Reply With Quote
Old 01-22-2013, 06:50 PM   #7
Tech Master
 
Chaz955i's Avatar
 
Join Date: May 2009
Location: NE Ohio
Posts: 1,022
Trader Rating: 5 (100%+)
Default

Quote:
Originally Posted by alcyon View Post
hmmm. interesting, any examples of this new innovation? i would like to learn more.
X-Ray T4
__________________
At The Gate Bizzos
Chaz955i is offline   Reply With Quote
Old 01-22-2013, 07:12 PM   #8
Tech Regular
 
Adam B's Avatar
 
Join Date: Nov 2010
Location: Detroit, Mi
Posts: 412
Default

Quote:
Originally Posted by Chaz955i View Post
X-Ray T4
Also the T3 2012 came with a fixed servo, then they released a kit to make it "float". Floating the servo will allow the chassis to flex evenly in both directions.
__________________
Franchise Racing Products * Fantom Racing * Pro One R/C Tires * RC America/Xray * Discount R/C Store * F1 R/C Lab * NORCAR @ The Gate
Adam B is offline   Reply With Quote
Old 01-23-2013, 01:57 AM   #9
Tech Elite
 
Join Date: Jan 2009
Posts: 2,054
Trader Rating: 10 (100%+)
Default

what abou tthe lipo side? We're gonna have floating lipos too?
cheapskate.brok is offline   Reply With Quote
Old 01-23-2013, 02:17 AM   #10
Tech Regular
 
mental_raycer's Avatar
 
Join Date: Aug 2012
Posts: 306
Default

Quote:
Originally Posted by cheapskate.brok View Post
what abou tthe lipo side? We're gonna have floating lipos too?
Lipo's are fixed fairly loosely in comparison to the servo mount, so the effect on flex is very marginal...enough to be able to rule it out as the chassis can freely flex underneath the lipo as there is no positive locking between the battery and the chassis itself. the same story goes for the receiver and speedy, the double sided tape flexes with the chassis negating the effect.
__________________
Chris Mitchell
West Coast Model RC Club President
------------------------------------------
Ryper Hobbies | AKA Racing | Hobbywing | Wild Turbo Fan
mental_raycer is offline   Reply With Quote
Old 01-23-2013, 02:48 AM   #11
Tech Master
 
cyanyde's Avatar
 
Join Date: Mar 2006
Location: KL, MY.
Posts: 1,041
Default

This would be the next servo mount all TC cars will follow. It simply makes so much sense to have it that way!

http://www.redrc.net/2013/01/serpent...-servo-holder/
__________________
/Adrian.

RC FB Pages Subscribed:
facebook.com/EPBuggy
facebook.com/AllStarChampionship
cyanyde is offline   Reply With Quote
Old 01-23-2013, 03:23 AM   #12
Tech Adept
 
CCDrift's Avatar
 
Join Date: Dec 2012
Location: Central Coast,NSW
Posts: 136
Trader Rating: 18 (100%+)
Default

Quote:
Originally Posted by cheapskate.brok View Post
what abou tthe lipo side? We're gonna have floating lipos too?
Floating lipos, what next pigs flying, can't wait for that.
CCDrift is offline   Reply With Quote
Old 01-23-2013, 03:28 AM   #13
Tech Adept
 
Join Date: Aug 2010
Posts: 217
Default

Quote:
Originally Posted by mental_raycer View Post
Lipo's are fixed fairly loosely in comparison to the servo mount, so the effect on flex is very marginal...enough to be able to rule it out as the chassis can freely flex underneath the lipo as there is no positive locking between the battery and the chassis itself. the same story goes for the receiver and speedy, the double sided tape flexes with the chassis negating the effect.
Quote:
Originally Posted by Adam B View Post
Also the T3 2012 came with a fixed servo, then they released a kit to make it "float". Floating the servo will allow the chassis to flex evenly in both directions.
The idea of a floating mount is not really to allow the chassis to flex. There are much easier and cheaper ways to do this like servo tape and single sided mounts. The idea is aimed more at allowing the servo and steering pulleys/rack to move about at the same rate relative to each other and to stop unwanted steering action as the chassis flex's.
YZFAndy is offline   Reply With Quote
Old 01-23-2013, 03:46 AM   #14
Tech Elite
 
Join Date: Jan 2009
Posts: 2,054
Trader Rating: 10 (100%+)
Default

Quote:
Originally Posted by CCDrift View Post
Floating lipos, what next pigs flying, can't wait for that.
floating touring cars!



I'll be damned if electronics float off the chassis like that in the future hahaha
cheapskate.brok is offline   Reply With Quote
Old 01-23-2013, 05:48 AM   #15
Tech Regular
 
Adam B's Avatar
 
Join Date: Nov 2010
Location: Detroit, Mi
Posts: 412
Default

Quote:
Originally Posted by cyanyde View Post
This would be the next servo mount all TC cars will follow. It simply makes so much sense to have it that way!

http://www.redrc.net/2013/01/serpent...-servo-holder/
The T4 uses a mount like that now. Only attaches to the chassis near the belt.
__________________
Franchise Racing Products * Fantom Racing * Pro One R/C Tires * RC America/Xray * Discount R/C Store * F1 R/C Lab * NORCAR @ The Gate
Adam B is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 05:26 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net