R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 11-04-2007, 12:34 PM   #46
Tech Adept
 
Join Date: Dec 2003
Location: Oslo, Norway
Posts: 237
Default

Quote:
Originally Posted by GreaseMonkey View Post
I'm still having trouble trying to work out the front suspension.

I understand the delrin pieces have fluid in them for damping. Is the t-bar type piece the spring or is there a spring inside the delrin piece like on any other type 12th scale? If the t-bar type piece is the spring, how does it work? If it's not, why is it there? Is it just so the upper arms are longer to reduce negative camber gains under loads?

Could you show a photo of the front suspension from a different angle so I get a better look at it?

Thanks
GreaseMonkey
Here is a picture after i cut of about half of the cup.
Alf :-)

alf.skaar is offline   Reply With Quote
Old 11-04-2007, 02:31 PM   #47
Tech Addict
 
GreaseMonkey's Avatar
 
Join Date: Apr 2006
Location: Ottawa, Canada
Posts: 552
Trader Rating: 4 (100%+)
Default

Thanks Alf. I worked it out after you explained it. Do you notice a significant improvement with the damping and longer upper arms?
__________________
I'm not a grown man playing with toys. I'm a hobbyist.
GreaseMonkey is offline   Reply With Quote
Old 11-04-2007, 02:49 PM   #48
Tech Adept
 
Join Date: Dec 2003
Location: Oslo, Norway
Posts: 237
Default

Quote:
Originally Posted by GreaseMonkey View Post
Thanks Alf. I worked it out after you explained it. Do you notice a significant improvement with the damping and longer upper arms?
All the test i have done until now show me that i works.
I have test with 20 000 Silicone Oil and this is very hard.
I can drop the car from 10 cm and it instantly are damping
the front, this is to hard damping, but i have to test the
extreme to make sure that i work and it do, this
are removing steering, i will test whit something thinner.
The goal is to make more steering whit out traction rolling.

Alf :-)
alf.skaar is offline   Reply With Quote
Old 11-04-2007, 05:03 PM   #49
Tech Adept
 
rtherbe's Avatar
 
Join Date: Nov 2005
Location: Lancaster,PA
Posts: 165
Trader Rating: 13 (100%+)
Default

Nice work Alf I am not a 1/12 guy, but it looks like a great platform to "Mod" on.
rtherbe is offline   Reply With Quote
Old 11-05-2007, 05:40 AM   #50
Tech Adept
 
Join Date: Dec 2003
Location: Oslo, Norway
Posts: 237
Default

rtherbe

Thanks

Som update after the second race whit the T*Star12

My car is going great!

I ended up setting fastest lap with 13:78 well until the last touring final
the boy (Helge Johansen) that was leading did a mistake and was pushing like crazy
and he did 13:74 and the boy that had the lead (Adrian Berntsen) dump hard, and helge
dump to, but he overtake Adrian, but i think Georg ended up wining :-)

Sow the car is fast and still no broken t-bar works great

Alf
alf.skaar is offline   Reply With Quote
Old 11-09-2007, 04:13 AM   #51
Tech Adept
 
Join Date: Dec 2003
Location: Oslo, Norway
Posts: 237
Default

I now have BL in the car i can post pictures of it if any one whant to se

Alf
alf.skaar is offline   Reply With Quote
Old 11-11-2007, 02:11 PM   #52
Tech Adept
 
Join Date: Dec 2003
Location: Oslo, Norway
Posts: 237
Default Upper Arm

I'm working on a new upper Arm, this are early prototype drawing.

drop the arm on nothing to adjus.

Alf

alf.skaar is offline   Reply With Quote
Old 11-19-2007, 03:37 AM   #53
Tech Apprentice
 
Vesa's Avatar
 
Join Date: Sep 2004
Location: Oulu, Finland
Posts: 81
Send a message via ICQ to Vesa Send a message via MSN to Vesa
Default

Looks nice Alf!
__________________
V @ V-Dezign
Sponsored by: V-Dezign | Nosram | Reedy | Black Art | TQ Wire | Horizon hobby | Xenon Racing | Badger airbrush | RC-Trim.com
Web - www.v-dezign.net | Facebook - www.facebook.com/vdezign
Vesa is offline   Reply With Quote
Old 11-19-2007, 10:06 AM   #54
Tech Adept
 
OscarF1's Avatar
 
Join Date: Oct 2006
Posts: 103
Default

Like this ?

OscarF1 is offline   Reply With Quote
Old 11-19-2007, 11:40 AM   #55
Tech Elite
 
joe of loath's Avatar
 
Join Date: Mar 2007
Location: Bristol, England, United Kingdom
Posts: 4,857
Trader Rating: 1 (100%+)
Default

mmmmmm redness...
__________________
HPI E-Firestorm - Tamiya TA05 racer (carbon chassis, 10.5 brushless etc) - LRP Blast S10 BX - Revo 2.5r truggy conversion (in progress)
joe of loath is offline   Reply With Quote
Old 11-19-2007, 02:49 PM   #56
Tech Adept
 
Join Date: Dec 2003
Location: Oslo, Norway
Posts: 237
Default

Quote:
Originally Posted by Vesa View Post
Looks nice Alf!
Thanks

See you in Sweden

Alf
alf.skaar is offline   Reply With Quote
Old 11-19-2007, 02:57 PM   #57
Tech Adept
 
Join Date: Dec 2003
Location: Oslo, Norway
Posts: 237
Default

Quote:
Originally Posted by OscarF1 View Post
Like this ?

This is from the scalpe, and this is the lower arm i think, i'm working on a fix upper arm.

Sow i have to say no

I think that i will run the CNC in the morning, i have done a small change for the
battery holder on my car, and made som spare parts for the race in Sweden
this weekend. sow i i'm ready to make som proto type parts

What do you all think off a fix upper arm ?
when you change the caster you change the arm, and when you change
the camber you change the arm.

Alf
alf.skaar is offline   Reply With Quote
Old 11-20-2007, 08:13 AM   #58
Tech Adept
 
OscarF1's Avatar
 
Join Date: Oct 2006
Posts: 103
Default

Quote:
What do you all think off a fix upper arm ?
when you change the caster you change the arm, and when you change
the camber you change the arm.
Could work well.

Maby both sides out of one piece.
You could make it like a bridge.

Les parts is better!
OscarF1 is offline   Reply With Quote
Old 11-20-2007, 05:31 PM   #59
Tech Adept
 
Join Date: Dec 2003
Location: Oslo, Norway
Posts: 237
Default

OscarF1

I whas thinking one part and it will fit on both sides,
if i make a bridge and one side are breaking, then you will have to replace both
sides.

Alf
alf.skaar is offline   Reply With Quote
Old 11-28-2007, 01:49 AM   #60
Tech Adept
 
Join Date: Dec 2003
Location: Oslo, Norway
Posts: 237
Default

I tested the demping and the fix upper arm and the car feels very precise and stable.I used the CRC "red lube - approx 1000wt" this is still too thick since this track doesn`t have any traction. But i was very surprised how good it works, slack in the frontend is not a good thing, i will do som changes to the design and try to make som cut out to make the upper arm softer.

Alf

Last edited by alf.skaar; 01-16-2008 at 01:28 PM.
alf.skaar 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 05:43 AM.


Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net