Go Back   RCCrawler Forums > Scale Rigs General Tech > Multi Axle Rigs
Loading

Notices

Like Tree16Likes
  • 2 Post By JoeConti
  • 2 Post By JoeConti
  • 1 Post By JoeConti
  • 1 Post By JoeConti
  • 1 Post By JoeConti

Thread: Homemade 8x8

Reply
 
LinkBack Thread Tools Display Modes
Old 04-21-2018, 06:00 AM   #1
Quarry Creeper
 
Join Date: Jul 2014
Location: Malta
Posts: 235
Default Homemade 8x8

Building my first 8x8 .. decided to go with AR60 axles and 2.2 wheels. So far so good. The chassis is looking awesome in my opinion and am starting with the drive train. Will be using an SCX10 transmission case with Robinson Racing gears - which will feed a homemade transfer case to feed each axle individually. The 2 axles closest to the middle of the truck will have the pinion spin in one direction while the end axles will have their pinion spin in the opposite direction, thus eliminating torque twist completely. Below find two links:

Here's a link to my page where you can find pictures showing where I am with the build so far and the second link to a YouTube video showing you how I made my 3 way transfer case. Enjoy

https://joesrccargarage.yolasite.com...d-progress.php

Mike Flea and durok like this.

Last edited by JoeConti; 05-12-2018 at 09:02 AM.
JoeConti is offline   Reply With Quote
Sponsored Links
Old 04-21-2018, 05:02 PM   #2
RCC Addict
 
Mike Flea's Avatar
 
Join Date: Apr 2013
Location: Streamwood, IL
Posts: 1,983
Default Re: Homemade 8x8

What body are you planning on using?
Mike Flea is offline   Reply With Quote
Old 04-21-2018, 07:29 PM   #3
RCC Addict
 
josh6575's Avatar
 
Join Date: Mar 2011
Location: Way out there!
Posts: 1,420
Default Re: Homemade 8x8

I have been wanting to try counter rotating shafts on a six by. Looks like your going to put it to the real test at both ends. I'll be keeping an eye on this build. Nice work.
josh6575 is offline   Reply With Quote
Old 04-22-2018, 11:43 AM   #4
Quarry Creeper
 
Join Date: Apr 2012
Location: Harrisburg
Posts: 252
Default Re: Homemade 8x8

Quote:
Originally Posted by JoeConti View Post
Thank you .. Still at the very early stages of the build. I have 3 of the 4 axles on the chassis - waiting for the u-bolts for the last axle, because , yep, I'm putting this on leaf springs. Here's a link where all the pics are so far:

https://joesrccargarage.yolasite.com...d-progress.php
I like the fact it isn't SCX 10 based and is on leafs. Should be a cool build, and I want to see how the counter-rotation drive line works out.

Sent from my HTC Desire 626 using Tapatalk
tcanin00 is offline   Reply With Quote
Old 04-22-2018, 12:37 PM   #5
Quarry Creeper
 
Join Date: Jul 2014
Location: Malta
Posts: 235
Default Re: Homemade 8x8

Quote:
Originally Posted by tcanin00 View Post
I like the fact it isn't SCX 10 based and is on leafs. Should be a cool build, and I want to see how the counter-rotation drive line works out.

Sent from my HTC Desire 626 using Tapatalk
Incidentally today I connected the front two axles to the transfer case and pushed the chassis along the work bench - all wheels turned forward and it was kinda strange seeing the shafts turning opposite one another, but worked well so far even though it only moved about 8 inches

There's new pictures at the very bottom of this page at this link

https://joesrccargarage.yolasite.com...d-progress.php
tcanin00 and durok like this.
JoeConti is offline   Reply With Quote
Old 04-22-2018, 01:26 PM   #6
Always building!
 
jebster's Avatar
 
Join Date: May 2010
Location: The east coast
Posts: 2,339
Default Re: Homemade 8x8

Nice setup. I like the transfer case design and how you are driving the axles separately.
jebster is offline   Reply With Quote
Old 04-22-2018, 11:52 PM   #7
Quarry Creeper
 
Join Date: Jul 2014
Location: Malta
Posts: 235
Default Re: Homemade 8x8

Quote:
Originally Posted by jebster View Post
Nice setup. I like the transfer case design and how you are driving the axles separately.
I figured that in a real life scenario I would have wanted my truck to be the same - I would not want my ending the trail to depend on one drive shaft driving both axles and depending on that setup in the middle of nowhere, plus they spin in the opposite direction cancelling out all torque twist - imagine a pull-pal event with that ;)
josh6575 likes this.
JoeConti is offline   Reply With Quote
Old 05-08-2018, 05:17 PM   #8
Rock Crawler
 
Join Date: Jun 2017
Location: Humboldt county
Posts: 578
Default Re: Homemade 8x8

Very cool build! Thanks for sharing.

I see 2 motors now
HumboldtEF is online now   Reply With Quote
Old 05-09-2018, 01:53 PM   #9
Newbie
 
Join Date: Dec 2017
Location: Las Vegas
Posts: 30
Default Re: Homemade 8x8

Extremely informative video! I really appreciate the depth of coverage and the explanations of the engineering.
Rock Dodger is offline   Reply With Quote
Old 05-11-2018, 02:43 PM   #10
Quarry Creeper
 
Join Date: Jul 2014
Location: Malta
Posts: 235
Default Re: Homemade 8x8

Quote:
Originally Posted by HumboldtEF View Post
Very cool build! Thanks for sharing.

I see 2 motors now
Thanks Yes I suspect I will need the extra torque to get this thing rolling over the rocks
HumboldtEF likes this.
JoeConti is offline   Reply With Quote
Old 05-11-2018, 02:43 PM   #11
Quarry Creeper
 
Join Date: Jul 2014
Location: Malta
Posts: 235
Default Re: Homemade 8x8

Quote:
Originally Posted by Rock Dodger View Post
Extremely informative video! I really appreciate the depth of coverage and the explanations of the engineering.
Thank you .. glad you liked and that you did't fall asleep half way haha
JoeConti is offline   Reply With Quote
Old 05-11-2018, 02:44 PM   #12
Quarry Creeper
 
Join Date: Jul 2014
Location: Malta
Posts: 235
Default Re: Homemade 8x8

Progress so far

HumboldtEF likes this.
JoeConti is offline   Reply With Quote
Old 05-12-2018, 09:18 AM   #13
Quarry Creeper
 
Join Date: Jul 2014
Location: Malta
Posts: 235
Default Re: Homemade 8x8

Next up is the steering .. I have the front 2 axles working on one servo but I am not happy with the way it performs .. it is not correct and has to many things that can go wrong. Take a look at my video here.

I am looking for a better solution and today I saw a video which showed a better solution and which apparently is more realistic. I will update you all with the progress of the new steering system as soon as I have something to show you
JoeConti is offline   Reply With Quote
Old 05-12-2018, 12:08 PM   #14
RCC Addict
 
calcagno45's Avatar
 
Join Date: Aug 2008
Location: Paulina
Posts: 1,078
Default Re: Homemade 8x8

If you want to run 1 servo, I would look into mounting some Bellcranks to one side of the chassis, 1 per axle, then connect the drag links to the bellcranks. Take a look at this one for example. Jebster's 10x10 HEMTT rollback hauler
calcagno45 is online now   Reply With Quote
Old 05-12-2018, 02:59 PM   #15
Quarry Creeper
 
Join Date: Jul 2014
Location: Malta
Posts: 235
Default Re: Homemade 8x8

Quote:
Originally Posted by calcagno45 View Post
If you want to run 1 servo, I would look into mounting some Bellcranks to one side of the chassis, 1 per axle, then connect the drag links to the bellcranks. Take a look at this one for example. Jebster's 10x10 HEMTT rollback hauler
That is exactly what I was looking at Thank you
JoeConti is offline   Reply With Quote
Old 05-19-2018, 02:12 PM   #16
Quarry Creeper
 
Join Date: Jul 2014
Location: Malta
Posts: 235
Default Re: Homemade 8x8

While waiting for parts, I decided to give the body a go. Here's what I did so far. This is the way I would like this build to go but then it is all subject to change if need be:



















JoeConti is offline   Reply With Quote
Reply



Homemade 8x8 - Similar Threads
Thread Thread Starter Forum Replies Last Post
Capo 1582-2 Tatra 817 8x8 and Cross MC8 Man Kat 1 8x8 Prop Shaft Multi Axle Rigs 23 05-11-2015 11:08 AM
What goes around comes around 8x8 TheManCave Multi Axle Rigs 3 04-10-2014 02:37 AM
The 8x8 TimR Tamiya Clod Buster 15 01-11-2008 12:15 PM
8x8 Shaggy5050 Chit Chat 3 12-12-2007 05:32 AM
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 On
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 09:54 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.
Copyright 2004-2014 RCCrawler.com