RC Truck and Construction  

Go Back   RC Truck and Construction > RC Tech section. > Mechanical tech

Mechanical tech This is for the mechanical parts of a model. Gear reductions, Axles, Transmissions, General drive line


Reply
 
Thread Tools Display Modes
  #21  
Old 08-22-2010, 07:14 PM
Bob From Downunder Bob From Downunder is offline
Newbie
 
Join Date: Aug 2010
Location: Malaysia
Posts: 33
Bob From Downunder is on a distinguished road
Default Re: Driven front axle options?

This is a fantactic forum. I have read this several times and have more understanding of what is required for a 6x6. I have also searched for an F350 transmission but no luck so far.
Fred, you demonstrated the difference's in manufactors front axle's very well - thank you for that.

Bob
Reply With Quote
  #22  
Old 08-22-2010, 08:51 PM
Bob From Downunder Bob From Downunder is offline
Newbie
 
Join Date: Aug 2010
Location: Malaysia
Posts: 33
Bob From Downunder is on a distinguished road
Default Re: Driven front axle options?

Guys, now that the front diff is sorted I would now like know about the transmission options. Has anyone used the RC4WD 3 speed full metal transmission? The gear ratios seem a little bit fast? How someone can shead some light here.

Bob
Reply With Quote
  #23  
Old 08-22-2010, 09:10 PM
Thorsteenster Thorsteenster is offline
Green Horn
 
Join Date: Aug 2010
Location: Falls Church, VA
Posts: 202
Thorsteenster is on a distinguished road
Default Re: Driven front axle options?

Smallhaul is doing this:
http://rctruckandconstruction.com/showthread.php?t=236
Or you can look around for a High Lift trans.
As well RC4WD and Eritex make some nice transfer cases, don't know how well they'd look on a semi tho lol.
Reply With Quote
  #24  
Old 08-22-2010, 09:22 PM
SmallHaul's Avatar
SmallHaul SmallHaul is offline
Big Dawg On The Bone
 
Join Date: Aug 2010
Location: Eastern, PA
Posts: 1,113
SmallHaul will become famous soon enoughSmallHaul will become famous soon enough
Default Re: Driven front axle options?

Quote:
Originally Posted by Thorsteenster View Post
You can always just get a transfer case from RC4WD or Eritex. Or really a bit of rod and a couple pinions for something simple, especially if it's hidden from view.
Thanks Thorsteenster, that statement gave me the idea to make this:

__________________
Scott

"No load is too Small"
Reply With Quote
  #25  
Old 08-22-2010, 09:34 PM
Thorsteenster Thorsteenster is offline
Green Horn
 
Join Date: Aug 2010
Location: Falls Church, VA
Posts: 202
Thorsteenster is on a distinguished road
Default Re: Driven front axle options?

That's good thinking there. I have a semi trans and have been thinking how I'd couple it to a t-case, never thought about just building one on the back!
Reply With Quote
  #26  
Old 08-23-2010, 12:15 AM
Bob From Downunder Bob From Downunder is offline
Newbie
 
Join Date: Aug 2010
Location: Malaysia
Posts: 33
Bob From Downunder is on a distinguished road
Default Re: Driven front axle options?

Gee thats good thinking. Anyway to make the front engage and disengage?

Bob
Reply With Quote
  #27  
Old 08-23-2010, 07:53 AM
SmallHaul's Avatar
SmallHaul SmallHaul is offline
Big Dawg On The Bone
 
Join Date: Aug 2010
Location: Eastern, PA
Posts: 1,113
SmallHaul will become famous soon enoughSmallHaul will become famous soon enough
Default Re: Driven front axle options?

Thanks, Thorsteenster

Quote:
Originally Posted by Bob From Downunder View Post
Gee thats good thinking. Anyway to make the front engage and disengage?

Bob
Thanks, here is one way to disconnect:

http://www.tcscrawlers.com/images/mi...structions.pdf
__________________
Scott

"No load is too Small"
Reply With Quote
  #28  
Old 08-23-2010, 11:03 AM
Roadmasters's Avatar
Roadmasters Roadmasters is offline
Moderator
 
Join Date: Aug 2010
Location: Northeast Massachusetts
Posts: 638
Roadmasters is on a distinguished road
Default Re: Driven front axle options?

Stickeyd
__________________
"My son will have a chocolate milk" -J.P.

Next East Coast Minitruckers Meet:



Arioch
Reply With Quote
  #29  
Old 08-24-2010, 07:31 AM
Bob From Downunder Bob From Downunder is offline
Newbie
 
Join Date: Aug 2010
Location: Malaysia
Posts: 33
Bob From Downunder is on a distinguished road
Default Re: Driven front axle options?

Thanks Scott, that was very helpful for me. I had something like that in my mind after I had looked at the RC4WD and your very own conversion build. I'm not sure but if the R2 has any reverse. Do you know?

Bob
Reply With Quote
  #30  
Old 08-24-2010, 08:49 AM
Thorsteenster Thorsteenster is offline
Green Horn
 
Join Date: Aug 2010
Location: Falls Church, VA
Posts: 202
Thorsteenster is on a distinguished road
Default Re: Driven front axle options?

No, but the ESC makes up for a mechanical reverse.
This R2 version looks pretty cool, 2 speed and selectable 2WD/4WD.
http://rc4wdstore.com/2/product_info...51140c0bf709c3
Reply With Quote
  #31  
Old 08-24-2010, 12:49 PM
Bob From Downunder Bob From Downunder is offline
Newbie
 
Join Date: Aug 2010
Location: Malaysia
Posts: 33
Bob From Downunder is on a distinguished road
Default Re: Driven front axle options?

Scott, how does the ESC make up for a mechanical reverse?

Bob
Reply With Quote
  #32  
Old 08-24-2010, 12:53 PM
SonoranWraith's Avatar
SonoranWraith SonoranWraith is offline
It's a dry 115 degrees.
 
Join Date: Aug 2010
Location: Scottsdale, AZ
Posts: 415
SonoranWraith is on a distinguished road
Default Re: Driven front axle options?

The ESC can run the motor forward or backward. No mechanics needed.
Reply With Quote
  #33  
Old 08-24-2010, 01:52 PM
Thorsteenster Thorsteenster is offline
Green Horn
 
Join Date: Aug 2010
Location: Falls Church, VA
Posts: 202
Thorsteenster is on a distinguished road
Default Re: Driven front axle options?

Do you have a forward only ESC? You can use a Traxxas Revo transmission and get a shiftable reverse.
Reply With Quote
  #34  
Old 08-24-2010, 05:49 PM
Bob From Downunder Bob From Downunder is offline
Newbie
 
Join Date: Aug 2010
Location: Malaysia
Posts: 33
Bob From Downunder is on a distinguished road
Default Re: Driven front axle options?

I have not purchased a ESC unit as yet so thats good info for me. This is my first build so thats why I know know very much - but I'm learning fast thanks to you guys.

Bob
Reply With Quote
  #35  
Old 08-24-2010, 07:19 PM
Thorsteenster Thorsteenster is offline
Green Horn
 
Join Date: Aug 2010
Location: Falls Church, VA
Posts: 202
Thorsteenster is on a distinguished road
Default Re: Driven front axle options?

Yeah as long as you get an ESC made for cars/trucks, it will have reverse.
Reply With Quote
  #36  
Old 09-04-2010, 10:53 AM
Thorsteenster Thorsteenster is offline
Green Horn
 
Join Date: Aug 2010
Location: Falls Church, VA
Posts: 202
Thorsteenster is on a distinguished road
Default Re: Driven front axle options?

Quote:
Originally Posted by Thorsteenster View Post
I'm planning on building my Volvo as 4WD. For the front axle I'll be trying this:
http://www.rccrawler.com/forum/showthread.php?t=120531
Or buying a German unit already built.

Seeing the pics Fhhhstix posted though, a standard TLT axle looks to bring the front axle width out to match the outer rear tires, so even a slightly narrowed TLT should look pretty good.
After looking at a diff I have, I got to thinking about the link I posted to RCC. This would lock the diff making it a posi rear, or front as the case may be.
So I was looking at the diff parts, and I don't see why the same couldn't be done with the side gears. Cut the axle shaft to length, drill out the splines in a side gear so the axles just slides in and drill/crosspin right behind the back of the gear. When assembled the diff case looks like it should keep the pins in place w/o having to press them in too tightly and you could easily narrow both sides.
I have an extra diff set, I think I may give this a try. I'll have to get a better bit though, or a pilot bit I think they're called, and figure out what size, I should be able to use the TLT hex pin.
__________________
Call me Thor, it's short for Thorsteenster.
In VA? Check out
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #37  
Old 09-08-2010, 12:34 PM
Thorsteenster Thorsteenster is offline
Green Horn
 
Join Date: Aug 2010
Location: Falls Church, VA
Posts: 202
Thorsteenster is on a distinguished road
Default Re: Driven front axle options?

I just ordered a couple bits to try out my above post. If it goes okay I'll start a separate thread.
__________________
Call me Thor, it's short for Thorsteenster.
In VA? Check out
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
  #38  
Old 09-08-2010, 01:07 PM
SmallHaul's Avatar
SmallHaul SmallHaul is offline
Big Dawg On The Bone
 
Join Date: Aug 2010
Location: Eastern, PA
Posts: 1,113
SmallHaul will become famous soon enoughSmallHaul will become famous soon enough
Default Re: Driven front axle options?

Quote:
Originally Posted by Thorsteenster View Post
I just ordered a couple bits to try out my above post. If it goes okay I'll start a separate thread.
Sounds good, please do!
__________________
Scott

"No load is too Small"
Reply With Quote
  #39  
Old 09-15-2010, 07:28 PM
SmallHaul's Avatar
SmallHaul SmallHaul is offline
Big Dawg On The Bone
 
Join Date: Aug 2010
Location: Eastern, PA
Posts: 1,113
SmallHaul will become famous soon enoughSmallHaul will become famous soon enough
Default Re: Driven front axle options?

More pics for reference...

Bruder Cab. Unmodified TLT axle on tamiya semi frame. Inside wheel from tamiya dually set used as front wheel:



__________________
Scott

"No load is too Small"

Last edited by SmallHaul; 09-15-2010 at 07:29 PM. Reason: Forgot to say Bruder cab
Reply With Quote
  #40  
Old 09-15-2010, 08:18 PM
Thorsteenster Thorsteenster is offline
Green Horn
 
Join Date: Aug 2010
Location: Falls Church, VA
Posts: 202
Thorsteenster is on a distinguished road
Default Re: Driven front axle options?

Wow, that looks about, if not, perfect. I had thought Bruder cabs were narrower than Tamiya's, but I guess not all.
__________________
Call me Thor, it's short for Thorsteenster.
In VA? Check out
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

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

Forum Jump


All times are GMT -4. The time now is 04:57 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.