R/C Tech Forums

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

Reply
 
Thread Tools Search this Thread
Old 08-30-2006, 09:02 AM   #16
Tech Regular
 
RC Professor's Avatar
 
Join Date: Jan 2005
Location: SC
Posts: 265
Trader Rating: 13 (100%+)
Default

Quote:
Originally Posted by Mr. Shookie
I totally agree, my only complaint is that the pinions don't fit the T2 all that well.
I had completely bought a 48p and 64p sets of your gears..... But the pinions are too tall to get the proper fit on the T2. When I used them on the RDX it was silent.

FOr the T2 the Xenon ones do the trick, they have two different set screw locations and are shorter.

Hope that gives you all the options you need.
And as for the TT-01 or the other Tamiya low cost kits...The gear mesh is setup by where the screws go into the motor, and isn't very efficent.
-Shookie <><

Have you tried mounting the pinion with the set screw at the very end of the armature shaft? Iím assuming that you have been trying to mount the pinion with the set screw closer to the motor can (like you would normally think of mounting a pinion), but try it in reverse. Iíve been using the older style pinions and the spurs designed with the countersunk mounting holes on my T2 with absolutely no problems.

Brian
RC Professor is offline   Reply With Quote
Old 08-30-2006, 09:18 AM   #17
Tech Elite
 
Mr. Shookie's Avatar
R/C Tech Charter Subscriber
 
Join Date: Sep 2004
Location: The Wilderness
Posts: 4,711
Trader Rating: 9 (100%+)
Send a message via AIM to Mr. Shookie Send a message via MSN to Mr. Shookie
Default

Tony,

Mine were the older taller version...
I like the shorty ones...

Professor,
I did try but with the Stock Spur and RW spurs the older tallers wouldn't fit no matter which way I tried....

Tony do me a favor and give the part number for a 48p 84t T2 specific spur...
Thanks,
-Shookie <><
Wish I would have talked to you before buying new pinions...But hey I will try the newer spur and if it works perfect I will just sell off the other pinions...
__________________
All who love the LORD JESUS I praise with you.1 Cor 10:31
Team HOLY Rollers (Team Manager)
The Church is a Hospital for Sinners not a Museum for Saints.
RcTech Feedback <>< RC Tech Subcriber #92
Mr. Shookie is offline   Reply With Quote
Old 08-30-2006, 09:29 AM   #18
Tech Fanatic
 
Tornado_Racing's Avatar
 
Join Date: Feb 2004
Location: Anywhere there is racin'
Posts: 750
Trader Rating: 2 (100%+)
Default

http://www.precisionracingsystems.com/products/20
__________________
Tony Moffre
PRS Customer Service

PRS - Hyperdrive - EA Motorsports - Corally USA - Parma/Faskolor - SMC - Killer Koncepts - MSA - Finishline - IRS - Lunsford - Trinity - Guarantee Graphix - RC4Less
Tornado_Racing is offline   Reply With Quote
Old 08-30-2006, 10:36 AM   #19
Tech Elite
 
Mr. Shookie's Avatar
R/C Tech Charter Subscriber
 
Join Date: Sep 2004
Location: The Wilderness
Posts: 4,711
Trader Rating: 9 (100%+)
Send a message via AIM to Mr. Shookie Send a message via MSN to Mr. Shookie
Default

Quote:
Originally Posted by Tornado_Racing
Thanks Bro,
But your out of stock of the two I use...LOL....84 and 87t
THanks,
-Shookie <><
__________________
All who love the LORD JESUS I praise with you.1 Cor 10:31
Team HOLY Rollers (Team Manager)
The Church is a Hospital for Sinners not a Museum for Saints.
RcTech Feedback <>< RC Tech Subcriber #92
Mr. Shookie is offline   Reply With Quote
Old 08-30-2006, 03:11 PM   #20
Tech Adept
 
mainracer's Avatar
 
Join Date: Jun 2003
Location: quebec
Posts: 197
Send a message via AIM to mainracer
Default

Tony, you got mail
__________________
Keven Hebert

AE / Reedy / LRP

KOpropo / Much-More / Parma PSE / Protoform / APS ceramic Bearing / BawdyShop / Fastcats / Dekelz
mainracer is offline   Reply With Quote
Old 08-30-2006, 05:26 PM   #21
Tech Elite
 
PitCrew's Avatar
 
Join Date: Sep 2003
Location: Seattle Indoor Raceway
Posts: 2,129
Default

Quote:
Originally Posted by Tornado_Racing
No problem, and by no means did I take your post as bashing. If we have problems with our products we like to hear about them so improvements can be made.

What do your pinions look like? We have had 2 different designs. Our latest called the "shorty" does not have the lip on the set screw side and the recessed area is much narrower.

Below is a pic of our "shorty" pinions (on the rack) and our older version. Sorry for the blurry pic.

I can tell these gears are Hobbed. By any chance do you have shaping machines? From my experience, shaped gears have less tooth-to-tooth and total composite error... But by no means are hobbed gears bad. I like the shortened pinions.

I too have had some issues using pinions on my T2 as they barely clamp on the shaft
PitCrew is offline   Reply With Quote
Old 08-30-2006, 06:13 PM   #22
Tech Elite
 
HotrodHopkins's Avatar
 
Join Date: Mar 2005
Location: Asphalt Unlimited Customs, Baltimore MD
Posts: 3,144
Trader Rating: 31 (100%+)
Send a message via AIM to HotrodHopkins
Default

didn't read the whole thread, so don't know if this was mentioned, but all parts don't come out in the mold the same way every time. there will always be some that are smaller or larger, if it's too small everything is loose and will make noise.
__________________
SHAUN HOPKINS a.k.a NoRod Hopkins

-1990 Chevrolet K1500 Silverado TBI350 "Heavy Half". 1971 Chevrolet Nova

-My lug nuts require more Torque than your Honda makes.
HotrodHopkins is offline   Reply With Quote
Old 08-31-2006, 12:07 AM   #23
Tech Elite
 
PitCrew's Avatar
 
Join Date: Sep 2003
Location: Seattle Indoor Raceway
Posts: 2,129
Default

These gears are not molded.
They are machined.

Most high end spur gears are machined too.
PitCrew is offline   Reply With Quote
Old 08-31-2006, 02:08 AM   #24
Tech Addict
 
gee-dub's Avatar
 
Join Date: Jul 2003
Location: Fontana, CA
Posts: 559
Trader Rating: 1 (100%+)
Default

to the original post, putting some grease on your gears really quiets them down also, though i'm sure there is potential for increased drag/stiction.
gee-dub is offline   Reply With Quote
Old 08-31-2006, 04:43 AM   #25
Tech Rookie
 
Join Date: Jul 2004
Posts: 12
Send a message via Yahoo to heftybone
Default Toothpaste...

Rumor has it that many Tamiya Mini drivers use plain toothpaste to "break in" their transmission gears, thus creating a quieter car.

You might give this a try.

hb
heftybone is offline   Reply With Quote
Old 08-31-2006, 06:40 AM   #26
Tech Addict
 
bizkit1's Avatar
 
Join Date: May 2006
Posts: 743
Trader Rating: 27 (100%+)
Default

Quote:
Originally Posted by heftybone
Rumor has it that many Tamiya Mini drivers use plain toothpaste to "break in" their transmission gears, thus creating a quieter car.

You might give this a try.

hb
Atleast it will smell minty
bizkit1 is offline   Reply With Quote
Old 08-31-2006, 07:33 AM   #27
Tech Fanatic
 
Tornado_Racing's Avatar
 
Join Date: Feb 2004
Location: Anywhere there is racin'
Posts: 750
Trader Rating: 2 (100%+)
Default

Quote:
Originally Posted by PitCrew
I can tell these gears are Hobbed. By any chance do you have shaping machines? From my experience, shaped gears have less tooth-to-tooth and total composite error... But by no means are hobbed gears bad. I like the shortened pinions.

I too have had some issues using pinions on my T2 as they barely clamp on the shaft
Very good, someone sounds like they know something about gears. The shaping process of cutting a gear has nothing to do with the quality of the gear. In the gear industry there are different quality levels some very close for the medical and avionics industry for example and some not so close or commercial grade such as mixing popcorn. The A.G.M.A. or American Gear Manufacturers Association sets the standard.

The tooth to tooth error or spacing is the error from one tooth to the other and the total composite error is the error in one revolution of the gear. The A.G.M.A. level that the gear is manufactured to determines what this needs to be. The higher the level say a quality 14 is a closer tighter gear than say an 8.

The process to cut the gears makes no difference, if the drawing calls for A.G.M.A. quality 14 gear it has to be that whether it is shaped or hobbed. We hob all our RC gears both pinion and spur and are inspected with a precision ground master gear which checks the tooth to tooth and total composite error at the same time. The exception is with our new 9,10, and 11 tooth 48 pitch pinions, with the gear being smaller than the hub behind it we use a shaper, this allows us not to cut into the hub behind the gear leaving more room for the set screw. Both gears are inspected on the same gear testing machine and both styles must meet the same quality level.

It is how the blanks are made, how the gear cutting machine is set up and the experience of the operator that determines the quality of the gear. Each gear manufacturer that makes is own product determines how good they want there gears cut they control the quality level, some manufacture closer than others they all may be cutting 64 pitch pinions but they are all not the same.

Gear noise can come from a number of things, if the tooth to tooth error is to large but the gear is concentric or round you will get gear noise, and the same goes for the opposite you can have very close tooth to tooth error but have a gear that that is eccentric or so to speak egg shaped to make it simple you will get gear noise. Also it is operator error, the guy who sets up the car, gears need backlash in order to work, to tight and the gears will make noise, and to much they will make noise.

You need to start with a quality gear and know how to set the backlash on the gears to get them to run efficient and quiet. The average racer out there has no way of knowing what the quality of gear they are purchasing is, there is no way of knowing unless you have a way to inspect the gears and that is a very costly expense.

I hope this offers some insight on gear inspection, this is just a small amount of information regarding gear manufacturing and inspection, there is much more to it but I think this clear some things up.
__________________
Tony Moffre
PRS Customer Service

PRS - Hyperdrive - EA Motorsports - Corally USA - Parma/Faskolor - SMC - Killer Koncepts - MSA - Finishline - IRS - Lunsford - Trinity - Guarantee Graphix - RC4Less
Tornado_Racing is offline   Reply With Quote
Old 08-31-2006, 07:46 AM   #28
Tech Champion
 
F. Mendoza's Avatar
 
Join Date: Apr 2006
Location: SoCal
Posts: 7,233
Trader Rating: 79 (100%+)
Default

Quote:
Originally Posted by Tornado_Racing
Very good, someone sounds like they know something about gears. The shaping process of cutting a gear has nothing to do with the quality of the gear. In the gear industry there are different quality levels some very close for the medical and avionics industry for example and some not so close or commercial grade such as mixing popcorn. The A.G.M.A. or American Gear Manufacturers Association sets the standard.

The tooth to tooth error or spacing is the error from one tooth to the other and the total composite error is the error in one revolution of the gear. The A.G.M.A. level that the gear is manufactured to determines what this needs to be. The higher the level say a quality 14 is a closer tighter gear than say an 8.

The process to cut the gears makes no difference, if the drawing calls for A.G.M.A. quality 14 gear it has to be that whether it is shaped or hobbed. We hob all our RC gears both pinion and spur and are inspected with a precision ground master gear which checks the tooth to tooth and total composite error at the same time. The exception is with our new 9,10, and 11 tooth 48 pitch pinions, with the gear being smaller than the hub behind it we use a shaper, this allows us not to cut into the hub behind the gear leaving more room for the set screw. Both gears are inspected on the same gear testing machine and both styles must meet the same quality level.

It is how the blanks are made, how the gear cutting machine is set up and the experience of the operator that determines the quality of the gear. Each gear manufacturer that makes is own product determines how good they want there gears cut they control the quality level, some manufacture closer than others they all may be cutting 64 pitch pinions but they are all not the same.

Gear noise can come from a number of things, if the tooth to tooth error is to large but the gear is concentric or round you will get gear noise, and the same goes for the opposite you can have very close tooth to tooth error but have a gear that that is eccentric or so to speak egg shaped to make it simple you will get gear noise. Also it is operator error, the guy who sets up the car, gears need backlash in order to work, to tight and the gears will make noise, and to much they will make noise.

You need to start with a quality gear and know how to set the backlash on the gears to get them to run efficient and quiet. The average racer out there has no way of knowing what the quality of gear they are purchasing is, there is no way of knowing unless you have a way to inspect the gears and that is a very costly expense.

I hope this offers some insight on gear inspection, this is just a small amount of information regarding gear manufacturing and inspection, there is much more to it but I think this clear some things up.
Yea!
__________________
RC America - Xray - Hudy - Gravity RC - KO Propo - Super Rad Graphics

Mr. Shookie goes home 10-06-08. Bill Levinson 4-14-15
F. Mendoza is offline   Reply With Quote
Old 08-31-2006, 07:50 AM   #29
Tech Champion
 
F. Mendoza's Avatar
 
Join Date: Apr 2006
Location: SoCal
Posts: 7,233
Trader Rating: 79 (100%+)
Default

I understand some of what I just read. But parts of it are complicated. I think that I kind of understand this because of setting up ring & pinion for a real Toyota truck. As most of us read more and more about this we will better understand. Thanks for the knowledge.
__________________
RC America - Xray - Hudy - Gravity RC - KO Propo - Super Rad Graphics

Mr. Shookie goes home 10-06-08. Bill Levinson 4-14-15
F. Mendoza is offline   Reply With Quote
Old 08-31-2006, 09:16 AM   #30
Tech Fanatic
 
SlamMan's Avatar
 
Join Date: May 2006
Posts: 847
Default

Quote:
Originally Posted by Tornado_Racing
Also it is operator error, the guy who sets up the car, gears need backlash in order to work, to tight and the gears will make noise, and to much they will make noise.
What method do you suggest we use to set the backlash?
__________________
Michael H

OnRoadColorado.com
Colorado On Road RC Club
SlamMan is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
It's Bloody Quiet in Here !! Victor Vector Northwest Racers 158 05-24-2014 05:57 AM
The Quiet Pipe Petition OTE_TheMissile Racing Forum 14 01-19-2008 08:51 PM
Whisper Quiet? marzin Singapore R/C Racers 7 09-30-2005 10:46 PM
What Is The Most Quiet Air Compressor You Know? SHOP UFO Painting, Designs, Graphics and Photography 12 10-20-2004 04:00 AM
quiet pipe for break in? tomkelley Onroad Nitro Engine Zone 6 07-27-2004 01:06 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 05:34 PM.


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