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-   -   Tommy's Class 1 Jeep (http://www.rccrawler.com/forum/1-5-scale-rigs/403295-tommys-class-1-jeep.html)

Tommy R 12-11-2012 12:25 PM

Re: Tommy's Class 1 Jeep
 
Quote:

Originally Posted by 08sv (Post 4060329)
What trans is that up there by the motor? link?

Dinky R/C Gr7. I'll let you look it up. ;-)

Tommy R 12-28-2012 07:31 AM

Re: Tommy's Class 1 Jeep
 
Well, it's not a huge update, but at least it's something. :mrgreen: I spent a bunch of time getting the front suspension sorted out. It's pretty tight quarters with the steering arm, panhard mount, links, chassis, axle, and even the motor all fighting for the same real estate! But I found a good place to mount the panhard onto the chassis w/o interfering with the servo or springs. It's only tacked in place at the moment. I'll fully braze it when the rest of the fab work is done and I strip down the chassis.

It's mounted at a slight angle to snake it through everything. If you look closely, you'll see I had to trim away some more of the Hand Bros panhard/3-link mount to provide clearance. FYI, some of the links and hardware pictured are for mock-up purposes.
http://tommyr.smugmug.com/Hobby-Stuf...9_065743-L.jpg

Front view.
http://tommyr.smugmug.com/Hobby-Stuf...9_065756-L.jpg

At full lock driver side with the drag link hooked up.
http://tommyr.smugmug.com/Hobby-Stuf...7_230202-L.jpg

Here you can see that I replaced the t-case driveshaft with a plastic version. This is primarily to reduce weight up high to help lower the center of gravity (cg). I'm not yet sure if it'll hold up, but it's not being subjected to as much torque as the other driveshafts so maybe it'll be fine. Time will tell on this one. ;-) Oh, and please pardon my messy workbench! :oops:
http://tommyr.smugmug.com/Hobby-Stuf...9_065814-L.jpg

Battery placement is a pain on this one. I want to have the option to run a bigger 4s battery, but under-body real estate is slim to none with this body! But I found an area to utilize in front of the Jeep's firewall. I made this very lightweight aluminum mount with a "diving board" for the battery to live on. It's puts the battery in the best compromise spot to have it as far forward as possible and also reasonably low. Well, it's pretty high up there, but hopefully it'll be okay. The good news is that I can run very long batteries that span the width of the Jeep so I may look into slimmer, longer batteries to lower the cg. But I think it's my best option.
http://tommyr.smugmug.com/Hobby-Stuf...7_230141-L.jpg

You can also see a very rough outline of where the electronics will go. The most sensitive stuff will go up high to get them out of the water. I also picked up a C.L.A.W. winch for the front. Notice the rear is using my old Toyota's servo winch mount, as I plan to run a rear winch on this truck. The mount still needs to be trimmed up and reduced in size.
http://tommyr.smugmug.com/Hobby-Stuf...7_230130-L.jpg

I still have a long way to go, but it's making progress, nonetheless! :mrgreen:

R2j 12-28-2012 09:00 AM

Re: Tommy's Class 1 Jeep
 
Looking good Tommy! Your right, there isn't much room left for anything with those TJ bodies. But looks like your winning the battle.

As far as the plastic shaft between the trans and t-case, I never had any luck with them. Even with the aluminum rings on them, I still snapped or twisted them. I ended up using one of the Junfac steel ones that I shorten. And since they're a little smaller than the MIP shafts, you don't gain too much weight. Worth a look."thumbsup"

hotwheels000 12-28-2012 09:41 AM

Re: Tommy's Class 1 Jeep
 
I agree ^^^^^^^^^ there is a lot of stress on the intermediate shaft.

The nice thing about the Gunfac d-lines, all you have to do to shorten them is cut a slot in the shaft at the appropriate position and slide a piece of steel in and braze it. The D shaped hole doesnt go all the way to the bottom, so you are effectivly creating the D shape with the slot and insert. If it doesnt make sence, contact Difuser (Dan) he showed me this little trick. It may be in the bug build or the pajero build, I cant remember wich one he did it to.

R2j 12-28-2012 10:08 AM

Re: Tommy's Class 1 Jeep
 
Yep.^^^^that's an easy way to do it."thumbsup"

I ended up cutting mine to length an just welding it solid.

paleblue46 12-28-2012 10:37 AM

Re: Tommy's Class 1 Jeep
 
Great looking jeep should be really cool ... what is LED work light in the back ground ? work good ? ... I need a good desk top work light .

Tommy R 12-28-2012 01:08 PM

Re: Tommy's Class 1 Jeep
 
Shon, Devlin... Thanks for the feedback! I currently have a shortened MIP I can use. Not sure if the Junfac shaft would save enough weight to justify another purchase, but more options are always good! I'll look into it.

I'm starting this rig with just a 35t motor on 3s. Since the Dinky Gr7 has pretty tall gearing, I'm hoping the torque output will be low enough that the plastic shaft will survive, but I suspect when/if I run 4s, it won't be long for this world! :ror:

paleblue, that's just a cheapy LED lamp I received as a gift some time back. I rarely use it. The light is pretty bright, but very localized so I only use it when I need to look at something small and detailed. I probably only use it once/month at most. Usually my two conventional lamps are plenty sufficient....though it doesn't look it in my pics! :shock:

klabeaume 12-28-2012 01:44 PM

Re: Tommy's Class 1 Jeep
 
Quote:

Originally Posted by R2j (Post 4095052)
Yep.^^^^that's an easy way to do it."thumbsup"

I ended up cutting mine to length an just welding it solid.

Did the same on my tj build. Worked great.

STANG KILLA SS 12-28-2012 02:15 PM

Re: Tommy's Class 1 Jeep
 
nice update Tommy! i have to 3rd the Junfac shafts very nice peices. and a lot smaller diameter. i run them on all my rigs. could help lower your battery tray a hair? so the weight savings could be two fold?

also the panhard rod looks really short? how is axle swing?

love that winch!! so much cooler than a servo winch.

Tommy R 12-28-2012 02:23 PM

Re: Tommy's Class 1 Jeep
 
Thanks, Cory! Yeah, dropping the height of the battery is a good point. I'll definitely look into it....

I forgot how long the track bar is, but it's pretty similar to a stock SCX10 with the Hand Bros setup. It does have some axle swing, but it's not any worse than what the Toyota had....and it performed pretty well so I think it'll be okay.

The drag link is identical in length to the track bar (which is good), but the angles are different (which is bad). So it has a bit of bumpsteer. It's not horrific, but I don't have any reasonable way to correct it. Everything is just too tight in there! But like I said, it's really not bad.....it's just not perfect. :)

STANG KILLA SS 12-28-2012 02:37 PM

Re: Tommy's Class 1 Jeep
 
no doubt the toyota was a performer. so your right, you cant argue with what works, and works well."thumbsup"

Tommy R 12-29-2012 11:25 AM

Re: Tommy's Class 1 Jeep
 
Finally decided to make some progress on mounting the body. I'm wrestled with this a lot on this build. On of my biggest concerns is easy/quick battery swaps. I don't want to have a bunch of complicated or time consuming mess to deal with. In addition, I want a body that's solidly mounted. I've had good success with Velcro and utilizing alignment features between the body/chassis. But this body will be pretty heavy with the cage work so I want to do something different.

I decided to hinge the rear and this is what I've come up with so far. This is mock up for now. I will likely bore out the clearance hole in the bracket for a bushing.
http://tommyr.smugmug.com/Hobby-Stuf...9_121216-L.jpg

I'll tether it so it doesn't tilt backward too far and risk damaging the body.
http://tommyr.smugmug.com/Hobby-Stuf...9_121243-L.jpg

This is my "proof of concept" attempt for the front body mount. They're rare earth magnets. The two shown are glued to the aluminum bracket. Then I have another rare earth magnet glued to the underside of the hood. If this works reasonably well, I'll pick up some larger, stronger magnets to replace these tiny ones. The great part about these magnets is they will always self-center, which is nice. The test will be if they're strong enough.....and if the glue is strong enough to hold them in place. If not, I can try Shoe Goo. If you look at the previous pic, you'll see the one magnet glued to the underside of the hood. The glue is drying at the moment...
http://tommyr.smugmug.com/Hobby-Stuf...9_121308-L.jpg

Tommy R 12-30-2012 02:12 PM

Re: Tommy's Class 1 Jeep
 
Well, good news... I think the magnet method is going to work pretty well! But to play it safe, I'm going to get some larger, stronger magnets to ensure the body is held down nice and solid.

So now that the body is secured pretty well, I was able to get some flex shots. The suspension is fully articulated in these pics. I may look into getting a bit more droop travel up front, but it's pretty good where it's at right now.
http://tommyr.smugmug.com/Hobby-Stuf...0_143941-L.jpg

http://tommyr.smugmug.com/Hobby-Stuf...0_144038-L.jpg

I'm currently trying to figure out how I want to build the front bumper. For Class 1 legality it needs to be as wide as the windshield. I would prefer a stubby bumper like I have on my 1:1, but that won't cut it. I suspect I'll do some sort of tube bumper to get the required width. Not really sure, but I'm open to suggestions!
http://tommyr.smugmug.com/Hobby-Stuf...0_144233-L.jpg

And here's a straight-on pic of the suspension at the approximate ride height I want. Note the different angles of the track bar and drag link. Not great, but good enough for a crawler. Note how low the motor is, too. I like that, but it does complicate suspension tuning due to a lack of clearance.
http://tommyr.smugmug.com/Hobby-Stuf...0_144301-L.jpg

rocksteadily 12-30-2012 05:07 PM

Re: Tommy's Class 1 Jeep
 
What if you put the drag link in the top side of the servo horn? It should correct the angle a little bit?

Tommy R 12-30-2012 05:10 PM

Re: Tommy's Class 1 Jeep
 
Quote:

Originally Posted by rocksteadily (Post 4098588)
What if you put the drag link in the top side of the servo horn? It should correct the angle a little bit?

It would, but there's no room for it. When I turn to the driver's side it would hit the framerail. Technically speaking, I could drop the chassis side track bar mount and build a curved track bar to clear the diff housing. But despite what it looks like, the bumpsteer simply isn't nearly bad enough to be worried about. So it'll likely remain as-is. 8)

Tommy R 01-07-2013 10:16 PM

Re: Tommy's Class 1 Jeep
 
Got some good and bad news....well, kinda. The good news is I am nearing completion of the roll cage and I'm pretty fond of the design. The bad news is I'm VERY rusty when it comes to cage building! I also tried using Safety-Silv 56 for the first times (I usually use 45) and it's got a learning curve to it.

Basically, I first glued the cage together. Then applied a tack weld at each joint. Next I go through and braze each joint. Finally, I'll clean up each joint as well as I can with a grinder and flapper wheel on the Dremel.

So it doesn't look like much right now, but I'm hopeful it'll clean up well and look pretty decent once it's all cleaned up and painted. But at least you can get an idea of what I'm doing...

http://tommyr.smugmug.com/Hobby-Stuf...7_230358-L.jpg

http://tommyr.smugmug.com/Hobby-Stuf...7_230408-L.jpg

I applied a magnet to the windshield so it'll stay upright when I want it to.
http://tommyr.smugmug.com/Hobby-Stuf...7_230419-L.jpg

chino63 01-07-2013 10:32 PM

Re: Tommy's Class 1 Jeep
 
Some great progress since I last checked in on this little guy. "thumbsup"

BTW, how's the hotrod doing? I fear mine will be sitting for another year or more due to the acquisition of my new FJ40. :cry::roll:

Tommy R 01-07-2013 10:34 PM

Re: Tommy's Class 1 Jeep
 
Quote:

Originally Posted by chino63 (Post 4112895)
Some great progress since I last checked in on this little guy. "thumbsup"

BTW, how's the hotrod doing? I fear mine will be sitting for another year or more due to the acquisition of my new FJ40. :cry::roll:

LOL! I think we were commenting in each others' threads at the same time. :mrgreen: That FJ is purty!!

The hot rod project has been slow. I'm ready to hit it pretty hard, but the Jeep needs so much attention right now that I've had to put the Model A on hold for a bit longer. :cry: In my little free time I'm tinkering with this little rig. :ror:

Desert Rc 01-07-2013 10:39 PM

Re: Tommy's Class 1 Jeep
 
Who did the molded seats....they look great!

chino63 01-07-2013 10:41 PM

Re: Tommy's Class 1 Jeep
 
Quote:

Originally Posted by Tommy R (Post 4112900)
LOL! I think we were commenting in each others' threads at the same time. :mrgreen: That FJ is purty!!

The hot rod project has been slow. I'm ready to hit it pretty hard, but the Jeep needs so much attention right now that I've had to put the Model A on hold for a bit longer. :cry: In my little free time I'm tinkering with this little rig. :ror:

Haha! I just saw that you posted in my thread. Thanks man, the FJ40 will be a fun one to work on for sure! "thumbsup"

I didn't know you have a 1:1 jeep. :oops: Thread somewhere?

Tommy R 01-07-2013 10:42 PM

LOL, they came with the body. :D

Desert Rc 01-07-2013 10:45 PM

Re: Tommy's Class 1 Jeep
 
Hmmm not the stock body. I have that body and I'm pretty sure there not sock. Me likey!

alaskancrawler 01-08-2013 03:32 AM

Re: Tommy's Class 1 Jeep
 
Tommy
Have some hot rod parts for your model a if your interested. What tires are you running on the lj?

salmonfacesalad 01-08-2013 03:43 AM

Re: Tommy's Class 1 Jeep
 
Quote:

Originally Posted by Desert Rc (Post 4112925)
Hmmm not the stock body. I have that body and I'm pretty sure there not sock. Me likey!

This is really starting to come together. Looking good Tommy!


The 1/10 new bright tj comes in different configurations as far as stickers and body colors go. Depending on which one you bought you could end up with the blue racing seats or red jeep seats or those tan jeep seats. Some say rubicon on the windshield some say newbright "thumbsup"

monkeyracer 01-08-2013 04:45 AM

Re: Tommy's Class 1 Jeep
 
Quote:

Originally Posted by salmonfacesalad (Post 4113077)
This is really starting to come together. Looking good Tommy!


The 1/10 new bright tj comes in different configurations as far as stickers and body colors go. Depending on which one you bought you could end up with the blue racing seats or red jeep seats or those tan jeep seats. Some say rubicon on the windshield some say newbright "thumbsup"

There's also the Nikko TJ body that comes with even different seats.

http://img.photobucket.com/albums/v2...0Build/014.jpg

Tommy R 01-08-2013 08:04 AM

Re: Tommy's Class 1 Jeep
 
Quote:

Originally Posted by chino63 (Post 4112914)
Haha! I just saw that you posted in my thread. Thanks man, the FJ40 will be a fun one to work on for sure! "thumbsup"

I didn't know you have a 1:1 jeep. :oops: Thread somewhere?

Yessir. Picked up an '01 back in '07. It's a LONG thread, but here's my build journal on jeepforum if you want to skim through it:
Tommy's Jeep Build Journal - JeepForum.com

Quote:

Originally Posted by Desert Rc (Post 4112925)
Hmmm not the stock body. I have that body and I'm pretty sure there not sock. Me likey!

I just checked another New Bright TJ and it's got the same seats. They're red, but same design. "thumbsup" I'd like to replace these with some Wraith seats, but I need to make sure the size is right before I decide to swap them out.

Quote:

Originally Posted by alaskancrawler (Post 4113075)
Tommy
Have some hot rod parts for your model a if your interested. What tires are you running on the lj?

Sweet! Hit me up via PM with what you've got available. :mrgreen: The LJ will likely run the MTZs shown on it. If tire clearance allows, I may get some Baja Claws or 1.7 Iroks. It'll remain Class 1 so they need to be below 4.2".

Quote:

Originally Posted by salmonfacesalad (Post 4113077)
This is really starting to come together. Looking good Tommy!

Thanks, man! "thumbsup"

R2j 01-08-2013 08:59 AM

Re: Tommy's Class 1 Jeep
 
Might have to try the earth magnet idea, but I'm usually a glutton for punishment and solid mount my bodies with hopes I don't need to make a quick battery change.:ror: The cage looks really good too!

Tommy R 01-08-2013 09:21 AM

Re: Tommy's Class 1 Jeep
 
Quote:

Originally Posted by R2j (Post 4113326)
Might have to try the earth magnet idea, but I'm usually a glutton for punishment and solid mount my bodies with hopes I don't need to make a quick battery change.:ror: The cage looks really good too!

Thanks, Shon! In my Bronco I had to use tools to access the batteries and it was always a pain and somewhat time consuming. I vowed I'd never do that again (especially with smaller capacity batteries!). I picked up some new, larger magnets that should be here later this week. I'm hoping they'll be strong enough that it'll secure the body, even in the event of a rollover. Not that that would ever happen! :lmao:

monkeyracer 01-08-2013 09:44 AM

Re: Tommy's Class 1 Jeep
 
Quote:

Originally Posted by Tommy R (Post 4113253)
I just checked another New Bright TJ and it's got the same seats. They're red, but same design. "thumbsup" I'd like to replace these with some Wraith seats, but I need to make sure the size is right before I decide to swap them out.

Quick cell pic comparing the size. Hope this helps:

http://img.photobucket.com/albums/v2...108_094147.jpg

http://img.photobucket.com/albums/v2...108_094153.jpg

About the same height and depth, but the wraith seats are a little wider.

R2j 01-08-2013 09:47 AM

Re: Tommy's Class 1 Jeep
 
Quote:

Originally Posted by Tommy R (Post 4113347)
Thanks, Shon! In my Bronco I had to use tools to access the batteries and it was always a pain and somewhat time consuming. I vowed I'd never do that again (especially with smaller capacity batteries!). I picked up some new, larger magnets that should be here later this week. I'm hoping they'll be strong enough that it'll secure the body, even in the event of a rollover. Not that that would ever happen! :lmao:

I really have been some what lucky with battery placement as of late, my old Courier was on the slider as well as the Power Wagon and when I originally built the FJ for Eric, he wanted a box built for the battery so that really has easy access. I run the Turnigy 2200 3cells, which can be a pain to find a place to fit them in. I think I'll look into doing a hinge type mount for my brute, most likely it will have the battery and the winch servo on the sliders too.

You roll over, pfffitt that's for amateurs like me!:lmao:

Tommy R 01-08-2013 09:47 AM

Re: Tommy's Class 1 Jeep
 
Oh man! Thanks a lot. Much appreciated! "thumbsup"

Tommy R 01-08-2013 11:31 AM

Re: Tommy's Class 1 Jeep
 
Quote:

Originally Posted by R2j (Post 4113395)
I really have been some what lucky with battery placement as of late, my old Courier was on the slider as well as the Power Wagon and when I originally built the FJ for Eric, he wanted a box built for the battery so that really has easy access. I run the Turnigy 2200 3cells, which can be a pain to find a place to fit them in. I think I'll look into doing a hinge type mount for my brute, most likely it will have the battery and the winch servo on the sliders too.

You roll over, pfffitt that's for amateurs like me!:lmao:


Yeah, I've got some of those Turnigy 2200s, too. I liked them, but they were a tad big for most of my builds so I downsized.....which meant more frequent battery changes! Argh! :ror:

elsewhere 01-08-2013 11:10 PM

Re: Tommy's Class 1 Jeep
 
been watchin this for a while now (loved your yota build)
kinda on topic here..

im running a 21.5 bl speedpassion motor with an mmp in my HEEP..
the battery is a gens ace 1550 4s and i get REALLY close to an hour of run time out of it with heavy wheelin..

http://i1178.photobucket.com/albums/...t/FA96B5D4.jpg
sorry had to whore it out...

R2j 01-09-2013 10:04 AM

Re: Tommy's Class 1 Jeep
 
Quote:

Originally Posted by Tommy R (Post 4113548)
Yeah, I've got some of those Turnigy 2200s, too. I liked them, but they were a tad big for most of my builds so I downsized.....which meant more frequent battery changes! Argh! :ror:

Yes they do pose a challenge to fit in, but worth the Mah. I only started using them because occasionally we do a Rally Cross type event (like G6) and wanted to make sure I had plenty of battery.

hotwheels000 01-09-2013 01:04 PM

Re: Tommy's Class 1 Jeep
 
Tommy, my experience withthe rare earth magnets has been great, a few things i have found when using them are....

They hold really well when trying to pull them apart, as soon as any lateral side to side movement is applied they slide easy and loose there holding power. So, if you can pin the hood,body doors or what ever you are trying to use them with so it doesnt slide sideways you should be good to go. All the pinning has to do is keep it from shifting,let the magnet do the holding from a pulling apart stand point.

Also, glueing the magnets can be a pain, They have so much holding power that sometimes the magnets will stay attached to each other and break the glue bond instead. Try to dremal a small groove into the magnets and use a dab of shoe goo.Press the magnet into it so the goo so that the goo puddles up into the groove and gives it a place to bond to prevent separation during the pulling process

Hope that nmade sence.

Tommy R 01-09-2013 02:39 PM

Re: Tommy's Class 1 Jeep
 
Yep, Devlin, that makes perfect sense! And thanks! I made the rear hinges for the body fairly long and snug to the framerails so I'm hoping they'll help provide some lateral support (the magnets will only be used up front). But if not, I'll definitely use your idea of grinding a slot into the magnets and using Shoe Goo.

http://tommyr.smugmug.com/Hobby-Stuf...9_121216-S.jpg

Tommy R 01-09-2013 09:52 PM

Re: Tommy's Class 1 Jeep
 
Well, I'll be darned. Tonight I cleaned up the weld/braze joints on the cage, touched up a few places with some more solder, gave it a little lovin' from a flapper wheel, and after some paint it looks dang near presentable. Go figger! :ror: It's far from perfect and not quite as nice as I'd hoped, but I'm nonetheless pleased with it.

The pics don't show up too well, but these will have to do 'til I can get some outside pics (after the rain stops).
http://tommyr.smugmug.com/Hobby-Stuf...9_224204-L.jpg

http://tommyr.smugmug.com/Hobby-Stuf...9_224233-L.jpg

http://tommyr.smugmug.com/Hobby-Stuf...9_224114-L.jpg

FATBOYrs10 01-09-2013 10:00 PM

Re: Tommy's Class 1 Jeep
 
cage looks good man. did a good job on all those joints as well"thumbsup"

Tommy R 01-09-2013 10:02 PM

Re: Tommy's Class 1 Jeep
 
Quote:

Originally Posted by FATBOYrs10 (Post 4116433)
cage looks good man. did a good job on all those joints as well"thumbsup"

Thanks! Some of the joints are a little bulkier than I would've preferred, but I'd rather them be too bulky and be strong, than be really slender joints with the chance of breaking. :mrgreen:

alaskancrawler 01-10-2013 08:23 AM

Re: Tommy's Class 1 Jeep
 
Tommy
How long are the touring car shocks your running? That is an awesome look lj


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