formula offroad jeep build
#1
Senior Member
Thread Starter
Join Date: Jan 2008
Location: parksville,
BC, CANADA
Posts: 1,786
Likes: 0
Received 0 Likes
on
0 Posts
formula offroad jeep build
finally got started on my FOFF hillclimber, working off pics of a 1:1 called "the clown" driven by Gunnar Gunnarsson...we have disused gravel pits here out the ying yang with some awesome hills so wanted a dedicated rc for the job.
using 4130 chromemoly tube chassis, rampig drivetrain, switched the long rear centre bone to the front so motor will sit back 1 1/8" more and used a longer fr/rear bone at the rear to increase the wheel base also figured a way to brace up the fr/rear axles to make them solid to keep this closer to the real deal. got hpi paddles and ordered some losi 420 paddles to try
hoping it'll end up looking something close to this (and yep it will be pink and purple[&:])
here's some nice frame pics to work from found here on rcu [link]http://www.rcuniverse.com/forum/m_9015383/anchors_9015383/mpage_1/key_/anchor/tm.htm#9015383[/link]
progress so far
once i tack this I can mount the motor and centre diff to build around
using 4130 chromemoly tube chassis, rampig drivetrain, switched the long rear centre bone to the front so motor will sit back 1 1/8" more and used a longer fr/rear bone at the rear to increase the wheel base also figured a way to brace up the fr/rear axles to make them solid to keep this closer to the real deal. got hpi paddles and ordered some losi 420 paddles to try
hoping it'll end up looking something close to this (and yep it will be pink and purple[&:])
here's some nice frame pics to work from found here on rcu [link]http://www.rcuniverse.com/forum/m_9015383/anchors_9015383/mpage_1/key_/anchor/tm.htm#9015383[/link]
progress so far
once i tack this I can mount the motor and centre diff to build around
#2
Junior Member
Join Date: Nov 2009
Location: Mittenwalde, GERMANY
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
RE: formula offroad jeep build
You can have a look at German forum http://www.rcindependent.com/ ... for having a look
to the pictures it may be necassary to create an account ... but this is the thread from clamsi,
who did a very good job ... actually changed to belt drive and looking for good friction ...
http://www.rcindependent.com/wbb2/th...threadid=28082
to the pictures it may be necassary to create an account ... but this is the thread from clamsi,
who did a very good job ... actually changed to belt drive and looking for good friction ...
http://www.rcindependent.com/wbb2/th...threadid=28082
#8
Senior Member
Thread Starter
Join Date: Jan 2008
Location: parksville,
BC, CANADA
Posts: 1,786
Likes: 0
Received 0 Likes
on
0 Posts
RE: formula offroad jeep build
ORIGINAL: funracer
You can have a look at German forum http://www.rcindependent.com/ ... for having a look
to the pictures it may be necassary to create an account ... but this is the thread from clamsi,
who did a very good job ... actually changed to belt drive and looking for good friction ...
http://www.rcindependent.com/wbb2/th...threadid=28082
You can have a look at German forum http://www.rcindependent.com/ ... for having a look
to the pictures it may be necassary to create an account ... but this is the thread from clamsi,
who did a very good job ... actually changed to belt drive and looking for good friction ...
http://www.rcindependent.com/wbb2/th...threadid=28082
great idea in there for making paddle tires, may have to try that
few more bits done yesterday, engine plate done and mounted, everything tacked up and started on the cab part, hope to get that done today and start on the back. want to start on my axles but aircraft spruce balls'ed up my order and didn't send the plate i need[&o]
I added 4 more mount tabs on the inside square to beef it up more
got the hardest bends done for the roll bars..rest is a cakewalk from here on apart from the axles
using 2 rear long dogbones so wheelbase is near 2" longer than my rampig and nutech, may have to put in a driveshaft hoop at the back for clearance at full droop
#9
Senior Member
Thread Starter
Join Date: Jan 2008
Location: parksville,
BC, CANADA
Posts: 1,786
Likes: 0
Received 0 Likes
on
0 Posts
RE: formula offroad jeep build
cab's done bar side braces. start on the axles sometime tomorrow when my missing steel arrives..hats off to aircraft spruce Canada, shipping it next day at their expense
#10
Senior Member
Join Date: Jan 2007
Location: cornwall, UNITED KINGDOM
Posts: 232
Likes: 0
Received 0 Likes
on
0 Posts
RE: formula offroad jeep build
looking good mate, some nice bends there, i used to do the roll bars in one hit but trying to get them the same and fit in a certain width, its easier to do in two half, plenty of beer helps to keep things straight
#12
Senior Member
Thread Starter
Join Date: Jan 2008
Location: parksville,
BC, CANADA
Posts: 1,786
Likes: 0
Received 0 Likes
on
0 Posts
RE: formula offroad jeep build
ORIGINAL: stiggwelder
looking good mate, some nice bends there, i used to do the roll bars in one hit but trying to get them the same and fit in a certain width, its easier to do in two half, plenty of beer helps to keep things straight
looking good mate, some nice bends there, i used to do the roll bars in one hit but trying to get them the same and fit in a certain width, its easier to do in two half, plenty of beer helps to keep things straight
progress has been slow working on the rear axle...spent last 2 evenings drinking beer staring at it figuring how to get it all lined up..the front will be a pain trying to get lined up with castor. Will probably change out the rear hubs for some vertigo 5b ones eventually. should have rear axle done this evening so will start on the rear cage section next
how it'll end up hopefully
#14
Senior Member
Thread Starter
Join Date: Jan 2008
Location: parksville,
BC, CANADA
Posts: 1,786
Likes: 0
Received 0 Likes
on
0 Posts
RE: formula offroad jeep build
rear axle tacked together and most of the rear frame's done..will need a driveshaft hoop and couple more braces.
I'll tackle the front axle next
I'll tackle the front axle next
#15
Senior Member
Join Date: Jul 2010
Location: spokane ,
WA
Posts: 147
Likes: 0
Received 0 Likes
on
0 Posts
RE: formula offroad jeep build
ORIGINAL: Dirty_Vinylpusher
The most important part of any project.
drinking beer staring at it figuring how to get it all lined up
i am defiantly digging that idea for the upper "camber" mount though if it had of been me i would have cut it back from the hubs a bit and added some drag links/trv's to add some adjust ability to the camber..... just an idea but a nice looking build either way
the weakest point i see is in the lower differential mount arms i think upon any stress those welds or the tube will snap just me being optamistic i guess (my day always entrusted me build it stronger and make it last longer....) some cross bracing between the lower "arms" should help increase the strength (by no means am i saying your welds are crap just points of stress
#17
Senior Member
Thread Starter
Join Date: Jan 2008
Location: parksville,
BC, CANADA
Posts: 1,786
Likes: 0
Received 0 Likes
on
0 Posts
RE: formula offroad jeep build
I was going to use rod ends for adjustable camber but decided against it, i figured i'd keep it solid like the full scale ones and as it's for going straight up it doesn't need dialling in like track runners......the front will be the same non adjustable...about 3deg castor and no camber...toe in will be adjustable though.
the lower arms are just tacked on at the moment and there is a bit more bracing to come once I attach the 4 link and shock mounts...i'm using 4130 chromemoly tube with .049 wall so strength definitely won't to be a problem once it's finished up
Figured out how to go about the front end now so just waiting the 6mm male rod ends i ordered a while back..once the front axle is done I'll get busy with the 4 link
the lower arms are just tacked on at the moment and there is a bit more bracing to come once I attach the 4 link and shock mounts...i'm using 4130 chromemoly tube with .049 wall so strength definitely won't to be a problem once it's finished up
Figured out how to go about the front end now so just waiting the 6mm male rod ends i ordered a while back..once the front axle is done I'll get busy with the 4 link
#25
Senior Member
Thread Starter
Join Date: Jan 2008
Location: parksville,
BC, CANADA
Posts: 1,786
Likes: 0
Received 0 Likes
on
0 Posts
RE: formula offroad jeep build
I've been neglecting this...now my tracks all done and the hurrax is sorted I figured I best start on it again so I dug it out a couple of days ago, I'll cut some steel for the front axle tonight and try and get that and the front end of the chassis done in the next couple of days. I've retired my rampage for now so have everything I need now to finish it...i better get busy