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04-30-2007, 11:23 PM
| #1 |
| PapaGriz Yo   Join Date: Apr 2004 Location: In the garage building the wife a crawler
Posts: 13,137
|  Guido: Scale TTC Bronco 2015 Scale Nats Updates
Many years ago I spotted a rig on the internet that I fell in love with upon first sight; it was John Reynold's Fat City Bronco. Then I saw it in the 2002 Four Wheeler Magazine Top Truck Challenge and ever since I’ve wanted to build something similar for the day when I enter TTC. That day is not going to be anytime real soon so I decided that I would do the next best thing, build a scale version of my TTC Bronco. The name of this rig is Guido.  Even though JR’s Bronco is the inspiration for what I want to build there are some things I would do different on my 1:1, you will see those things come up in this scale build. I always work better under pressure so I decided that the Montana scale comp put on by Unimoger would be the perfect deadline to shoot for. As of this time I have 16 days until I leave.  I actually started this a few weeks ago so I will try to bring this up to speed fairly quickly.Pictures: First is the inspiration for this build: Let’s see how close it ends up. Thanks for reading and I hope yall like it. First off is the suspension design. I am not a big fan of coilovers, the reason being that if you break a link and the axle rotates you can toast a coilover and then yer done. With coil springs you can repair the link and continue on the trail. This has happened on the trail before with my friends and in TTC it is important to be able to repair things quickly. Another thing I like about coil springs is that if they are captured on both ends they provide some resistance to the axle droop, coilovers do not. Plus, it's been a long time since I built a coil spring suspension RC and I just love the way they look and the realistic performance. For these reasons I decided on coil spring suspension front and rear. Now, on most TLT rigs I have seen people mount the coil springs under the frame because that is where the holes in the axle housing are to mount the coil. On my 1:1 I would have the coils on the outside of the frame for two reasons. Putting them out closer to the tire gives you better stability and you can run a longer coil spring which means a softer spring rate for the same amount of travel. To get the springs out further on the axle I made these mounts out of 22ga steel. These move the springs out enough to run them outside of the frame rails. That brings us to another point. Since I would be building the 1:1 in my garage I would start with a ladder frame rather than building a full tube chassis. I say this only because it would be easier for me to build with a known starting point rather than starting from nothing. I chose to use 1/8” thick aluminum for the frame rails, I would rather use ¼” but it is hard to find at the hardware store. I had this particular frame laying around from another Bronco build I started last year so I decided to save time by using it. There's alot of extra holes in it but I'll have to live with that for now. After Montana I'll cut out a new frame since I doubt I'll have enough time before.  Index: Phase 2 start 2008 ready for chassis paint Phase 2 finished for MSD Scale Nats Phase 3 start 2010 steering servo and engine mount fab chassis painted Phase 3 finished for MSD Scale Nats Phase 4 start 2012 Custom AR60/10 axle fab start new interior fab start machine work on axles and steering box fab front suspension and steering fab scale calculations and interior assembly Electronics waterproofing front AR60/10 axle finished Phase 4 finished for NWSC 2013 Update Start (Back in black and green) Last edited by Grizzly4x4; 09-16-2013 at 07:19 PM. |
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04-30-2007, 11:24 PM
| #2 |
| PapaGriz Yo Join Date: Apr 2004 Location: In the garage building the wife a crawler
Posts: 13,137
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Here's the mockup with the cage sitting on the frame. The cage is being made from 3/16" brake line and welded with my MIG. The cage will tie to the frame at 4 points under the cab, similar to body mounts, as well as at the front and rear. It took me days to figure out the right way to tie it together but so far it's looking good (pics of that later).     Last edited by Grizzly4x4; 11-12-2008 at 11:56 PM. |
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04-30-2007, 11:27 PM
| #3 |
| I wanna be Dave Join Date: Dec 2005 Location: Orlando
Posts: 7,420
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Griz means Biz!
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04-30-2007, 11:27 PM
| #4 |
| Quarry Creeper  Join Date: Apr 2006 Location: sacramento
Posts: 373
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looks great dude  |
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04-30-2007, 11:40 PM
| #5 | ||
| PapaGriz Yo Join Date: Apr 2004 Location: In the garage building the wife a crawler
Posts: 13,137
| Quote:
Quote:
Thanks guys, I was torn between building a scale version of my Bronc as it is now or this one. I decided that since I won't have the 1:1 of this for a while I'll do the scale one now. I have high hopes for how this should turn out.  Last edited by Grizzly4x4; 04-30-2007 at 11:53 PM. | ||
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04-30-2007, 11:43 PM
| #6 |
| I wanna be Dave Join Date: Dec 2005 Location: Orlando
Posts: 7,420
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So are you saying that you'll be turning your Bronco into the real thing?
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04-30-2007, 11:47 PM
| #7 |
| PapaGriz Yo Join Date: Apr 2004 Location: In the garage building the wife a crawler
Posts: 13,137
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The front suspersion is another area where I will build mine different. I have been so happy with the Duff long arm suspension on my 1:1 Bronc that I think I'd actually use it on my TTC rig. They are super tough and articulate well. The Duff arms are based off of 2" OD tube so I used 1/4" brakeline (0.25" is 1/8 scale of 2") to build my radius arms. The short links to provide axle wrap control have some flex in them. I did this by not using the steel ball in the Traxxas rod end and replacing it with Dubro neoprene fuel line. This allows enough flex in the link to articulate pretty good.    Last edited by Grizzly4x4; 11-12-2008 at 11:58 PM. |
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04-30-2007, 11:51 PM
| #8 | |
| PapaGriz Yo Join Date: Apr 2004 Location: In the garage building the wife a crawler
Posts: 13,137
| Quote:
When I build my TTC Bronc I will start from scratch. I'll likely buy an aftermarket frame from Advanced Frameworks or Matkins, pick up a fiberglass tub, and get the VIN by buying a Bronco glove box door and stock frame. | |
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05-01-2007, 12:10 AM
| #9 |
| I wanna be Dave Join Date: Dec 2005 Location: Orlando
Posts: 7,420
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I'm doing my links like that on my Scout,freakin' awesome Griz.You dah man!
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05-01-2007, 12:15 AM
| #10 | |
| PapaGriz Yo Join Date: Apr 2004 Location: In the garage building the wife a crawler
Posts: 13,137
| Quote:
Thanks DJ. Caint wait to see yours, I showed you mine. I was flexin it out on a pop can tonight, they seem to have plenty enough flex so I think you'll be happy with them too. This thing has alot more flex than my comp rig. | |
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05-01-2007, 04:20 AM
| #11 |
| I wanna be Dave Join Date: Jun 2005 Location: KENNEWICK, WA
Posts: 2,513
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This thing is looking SWEET! |
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05-01-2007, 04:44 AM
| #12 |
| I lost my vendor privileges Join Date: May 2006 Location: TOP OF THE HILL
Posts: 3,014
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real nice work Griz. be glad to see it done.
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05-01-2007, 05:16 AM
| #13 |
| Quarry Creeper Join Date: Jan 2006 Location: Atlanta GA
Posts: 387
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nice work, like the 2 linked rear.
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05-01-2007, 06:21 AM
| #14 |
| Rock Crawler Join Date: Apr 2004 Location: Longmont, CO
Posts: 901
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Looking good Chris, as always. When you get back, you need to draw up that frame and ask someone with a CNC to profile it out for ya... |
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05-01-2007, 06:54 AM
| #15 |
| TEAM RCC Join Date: Oct 2005 Location: THE ALIEN WORKSHOP
Posts: 770
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Looking good Griz How come you have the Radius Arms on the bottom? Is that how your Bronco is set up? |
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05-01-2007, 07:02 AM
| #16 |
| I wanna be Dave Join Date: Jul 2005 Location: Cedar Rapids
Posts: 2,028
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Looks great grizz. 4WS like the bronc? |
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05-01-2007, 08:14 AM
| #17 |
| Sinking with the ship  Join Date: Mar 2005 Location: El Capitan...sole survivor and sinking fast
Posts: 8,864
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Looks awesome Chris! I enjoy your build ups, they are always top of the line Cage work looks great and I like the long arms and coil springs. Keep up the good work -Mike |
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05-01-2007, 08:21 AM
| #18 |
| Rock Crawler Join Date: May 2005 Location: Fort Wayne
Posts: 728
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Wow that is a sweet looking truck and its not even finished! Wish I had your skills. Nice work!
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05-01-2007, 09:02 AM
| #19 |
| Quarry Creeper Join Date: Nov 2005 Location: Pueblo West
Posts: 250
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DAYUM Griz....... badddasss build so far man , i'm going to send you a PM about those coil axle mounts , Love'n the link design too i'm going to keep an eye on this build for sure |
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05-01-2007, 10:29 AM
| #20 |
| RCC Addict Join Date: Sep 2005 Location: Tempe, AZ
Posts: 1,262
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This is a sick build and great thinking out of the box on the links!
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| Tags |
| bronco, guido, holmes hobbies, irok, rc crawler, scale, top truck challenge, ttc, vanquish, wraith axles |
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LinkBack to this Thread: http://www.rccrawler.com/forum/2-2-scale-rigs/70328-guido-scale-ttc-bronco-2015-scale-nats-updates.html | ||||
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