R/C Tech Forums

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

Closed Thread
 
Thread Tools Search this Thread
Old 04-10-2008, 09:33 AM   #601
Tech Elite
 
seaball's Avatar
R/C Tech Charter Subscriber
 
Join Date: Sep 2001
Posts: 4,303
Trader Rating: 9 (100%+)
Send a message via Yahoo to seaball
Default

Quote:
Originally Posted by Paul L View Post
seaball: your new sensae should be one William E.
awesome.

i agree 100% about getting it on the track. it's just that here, people want a set of rules to memorize. roll center isn't confusing if you look at a picture (the orion animated one was sweet). but when people start generalizing, it all craps out. i was trying to save you 5 more rounds of this!
__________________
*** The Gate II - Home of Mike Wise ***
seaball is offline  
Old 04-10-2008, 09:39 AM   #602
Tech Master
 
chicky03's Avatar
 
Join Date: Mar 2002
Posts: 1,993
Trader Rating: 1 (100%+)
Send a message via AIM to chicky03
Default

Quote:
Originally Posted by seaball View Post

i also have more visual material for you, specifically, paul. what?
It's just around the corner.
Attached Thumbnails
Around The Table With Paul Lemieux(RC-America/Thunderpower)-just-around-corner.jpg  
chicky03 is offline  
Old 04-10-2008, 09:43 AM   #603
Tech Elite
 
Join Date: Jul 2005
Location: Philadelphia, PA
Posts: 3,121
Trader Rating: 32 (100%+)
Send a message via AIM to A. Rhodes
Default

Quote:
Originally Posted by Paul L View Post
A. Rhodes: Hi, are you talking about around the bearing?
I have had no problem with my Trinity stuff. ill look later when im at the track. Thanks
Paul - yes, by the bearing. Attached some pics of where its hitting.
Attached Thumbnails
Around The Table With Paul Lemieux(RC-America/Thunderpower)-sp-motor.jpg   Around The Table With Paul Lemieux(RC-America/Thunderpower)-moto-mount.jpg  
__________________
Retired from RC....
Quantum - St. Croix - Bass Pro Shops - XPS - Rapala
A. Rhodes is offline  
Old 04-10-2008, 09:48 AM   #604
Gravity RC
 
Join Date: Oct 2005
Location: Wi
Posts: 1,147
Default

Seaball: it really did help alot, thanks. just giving you crap.

chicky: LOL. i have a feeling that this thread could go down hill really fast. first chris, now you and i see that brad is reading it.
Paul L is offline  
Old 04-10-2008, 09:49 AM   #605
Tech Elite
 
seaball's Avatar
R/C Tech Charter Subscriber
 
Join Date: Sep 2001
Posts: 4,303
Trader Rating: 9 (100%+)
Send a message via Yahoo to seaball
Default

Quote:
Originally Posted by chicky03 View Post
It's just around the corner.
yup, right over at this place ...

(okay, i'm done - lol)
Attached Thumbnails
Around The Table With Paul Lemieux(RC-America/Thunderpower)-img00076l.jpg  
__________________
*** The Gate II - Home of Mike Wise ***
seaball is offline  
Old 04-10-2008, 09:56 AM   #606
Gravity RC
 
Join Date: Oct 2005
Location: Wi
Posts: 1,147
Default

A rhodes: Thanks for the nice pics, can you run A 104/39 to moove it away?
Paul L is offline  
Old 04-10-2008, 09:56 AM   #607
Gravity RC
 
Join Date: Oct 2005
Location: Wi
Posts: 1,147
Default

SEABALL: lol
Paul L is offline  
Old 04-10-2008, 10:02 AM   #608
Tech Elite
 
Join Date: Jul 2005
Location: Philadelphia, PA
Posts: 3,121
Trader Rating: 32 (100%+)
Send a message via AIM to A. Rhodes
Default

Quote:
Originally Posted by Paul L View Post
A rhodes: Thanks for the nice pics, can you run A 104/39 to moove it away?
I still do not think that would allow enough space for the motor to mesh, it was a pretty large gap. I borrowed the motor while at a race, so I don't have it to try with that gearing
__________________
Retired from RC....
Quantum - St. Croix - Bass Pro Shops - XPS - Rapala
A. Rhodes is offline  
Old 04-10-2008, 10:58 AM   #609
Gravity RC
 
Join Date: Oct 2005
Location: Wi
Posts: 1,147
Default

A rhodes: I guess that it is possible that this motor dosen't allow it to be mooved very far back. I would mess with bigger spurs and pinions untill it is right. or if you get desprate you could bust out the dreamel, but it shouldnt be nessissary.
Paul L is offline  
Old 04-10-2008, 11:19 AM   #610
The Evicerator
R/C Tech Elite Subscriber
 
Join Date: Sep 2001
Location: Irvine, CA
Posts: 4,142
Default

Paul,

Can you help me dial in my tumbleweed? I tried checking out this website

http://prairietumbleweedfarm.com/

But it really didn't help me all too much although the sections on tumbleweed testing and the GIANT tumbleweeds sure are great reading!
__________________
Steve Weiss
TEAM ASSOCIATED -- REEDY -- SANWA -- PROTOFORM -- 1UP Racing -- ActivRC -- P1 BRAND -- TEAM KINWALD -- TEAM STEVE INTERNATIONAL
Steve Weiss is offline  
Old 04-10-2008, 05:28 PM   #611
Tech Fanatic
 
Join Date: Jun 2007
Location: Adrian, MI
Posts: 823
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by todd8603 View Post
Paul,
If all this is correct then this fellas experience with traction rolling and loose rear end would be the result the combination of low roll centre rear and higher roll centre front. Right? Thanks.
So back to stopping traction rolling, is this the best way to stop it??

I race with xraysteve and a bunch of xrays, I have a HB Cyclone. It's no fun racing with xrays because they all seem to roll over all the time. There must be a good way to help these guys out so I can have a clear track without xrays on there roofs all over the track
Lazer Guy is offline  
Old 04-10-2008, 08:10 PM   #612
Tech Master
 
The Bear's Avatar
 
Join Date: Feb 2007
Location: New Hampshire
Posts: 1,451
Trader Rating: 13 (100%+)
Default

Hey Paul, wondering what you thought of 'roll' in different classes. Couple of my friends and I are always argueing over the use of roll. I usually end up running roll, they do not. typically running stock/19t foam tc, stock 1/12 and some rubber carpet stock/13.5.

just looking for an opinion.

Last edited by The Bear; 04-10-2008 at 08:12 PM. Reason: ok
The Bear is offline  
Old 04-10-2008, 08:30 PM   #613
Tech Master
 
adamge's Avatar
 
Join Date: Sep 2006
Location: Saskatoon,SK Canada
Posts: 1,654
Trader Rating: 1 (100%+)
Default

Quote:
Originally Posted by seaball View Post
with rubber tires, our arms will angle down to the chasis a bit, and the above holds true. however, on foams our touring cars run almost flat arms at r/h. if the arms are completely horizontal, changing the camber link inclination will have no effect on the (static) roll center. see the following for reference:



and if the arms angle up to the chassis (old rdx setups and high rear roll centers in general) the effect of the camber link on roll center is reversed. it's all to do with the lower arms.

however, like paul said, the larger effect from the links is related to camber gain and what that does during roll. if you want to change the roll center, do it at the lower pins. it will be much more profound (and simple). up is up, and down is down. otherwise, there is no blanket statement about how changing the links will affect the r/c.

obey the man. i just thought i'd offer a visual on the deal to help him out.

i also have more visual material for you, specifically, paul. what?
seaball, do you have any pics comparing the angled camber link to the flat camber link with the three different arm angles (inclined, declined, and flat)? I hate to be the nobody calling out the somebody, but I've just done the drawings myself and in all three cases, more angle on the camber link results in a higher roll center.
-Adam
__________________
When someone is intent on excelling in an otherwise laudable manner, does he not desire to inflict pain on others by means of his exalted status and enjoy the envy he arouses? Is there not an anticipated delight in an artist's ability to defeat his artistic rivals, which heightens his euphoria in creation?
-Nietzsche
adamge is offline  
Old 04-10-2008, 08:57 PM   #614
Tech Adept
 
todd8603's Avatar
 
Join Date: Oct 2004
Location: Oshawa Ontario Canada
Posts: 248
Trader Rating: 6 (100%+)
Default

Quote:
Originally Posted by seaball View Post
with rubber tires, our arms will angle down to the chasis a bit, and the above holds true. however, on foams our touring cars run almost flat arms at r/h. if the arms are completely horizontal, changing the camber link inclination will have no effect on the (static) roll center. see the following for reference:



and if the arms angle up to the chassis (old rdx setups and high rear roll centers in general) the effect of the camber link on roll center is reversed. it's all to do with the lower arms.

however, like paul said, the larger effect from the links is related to camber gain and what that does during roll. if you want to change the roll center, do it at the lower pins. it will be much more profound (and simple). up is up, and down is down. otherwise, there is no blanket statement about how changing the links will affect the r/c.

obey the man. i just thought i'd offer a visual on the deal to help him out.

i also have more visual material for you, specifically, paul. what?
Fantastic thanks. I think my statement still holds true though in either case. Interstingly, Paul's later comment rings even more true. We have to try it with an open mind. That said, a goal or effect must be set. Try the change then determine if the change meets expectations.
todd8603 is offline  
Old 04-11-2008, 03:21 AM   #615
Tech Regular
 
Join Date: Aug 2005
Posts: 308
Trader Rating: 1 (100%+)
Default

Hi Paul,

What is your procedure with spec rubber tires? do you rotate them?

Im having trouble at some tracks. The front right tire is taking a hard beating, making my car push. I tried rotating tires but that made the car feel twitchy... Any solutions?

Thanks for any help
Itchy is offline  
Closed Thread

Similar Threads
Thread Thread Starter Forum Replies Last Post
Custom painted Paul LeMieux DNA 1 Sean R R/C Items: For Sale/Trade 4 02-12-2008 07:24 PM
pit table cyclone Electric On-Road 1 10-29-2006 07:01 PM
Paul Lemieux exint2 Electric On-Road 9 10-17-2006 07:19 PM
Mike Blackstock and Paul Lemieux sign with Xray ctmazzo Electric On-Road 79 01-02-2006 03:01 PM
Pit Table help Joneser Electric On-Road 11 09-01-2003 09:44 AM



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 09:16 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