CAD Designs of the New Buggy

[Rich.]

Well i have spent the last couple of days working on some CAD designs for the new buggy, there still not finished yet but im just looking for abit of info as to what you think. Not too sure about proportions either, those tyres are ment to be 44's and that would make the buggy pretty massive if the scales right so you have to use your imagination abit aswell









Rich

[sainter4x4]

lower the bonet so that the shocks come up through the bonet and lower roof lights they will keep getting caugt at winch challanges

[scut44]

Nice,
Have you checked out Malc Whitbreads latest creation ? 'THUG'
Pure Function & no frills seems to be coming out now in lots of peoples builds.
george

[minimog]

or what about this

also running 44's so to give you a real life idea of size (thats a lt35 lwb van in the background)

[Rich.]

Putting the shocks through the bonnet would just make them get hotter, which I don't want to do. The lights are based on the sand rail/dune buggy look, but they have got that bar around them (all the lines with be 48mm CDS tube, I'm just too lazy to put it all in on the drawing)

Yer, I saw the thug over on devon, I carnt make my mind up on it. I like it from the back but not so much from the front.

And that landy is pretty sick, but still far to landrover based for my liking gives a good aspect to soze of the tyres though so I might have to adjust that on the drawing.

Thanks for the input
Rich

[g1oves]

heres a couple of baz gee`s toy before the paint job.

its really huge and had a lot of work done on it.

[minimog]

hi g1ove have i met you because i was helping barrie with some of the work on it and its nice to put names to faces

[sainter4x4]

[Rich.]

Get yours jacked up and stick some 44's on it Chris and youl be fine. Well, for the 5 minuts the axles stay intact!

[Mook]

Very nice!









Rich[/quote]

[g1oves]

[minimog]

no probs have to catch you at an offroad day
as for barries yes its a true tomcat running a 300tdi auto and 404 mog axels it started off as a 88" but hes gone to 110" to give it a bit more stability on the 44's

[clbarclay]

What CAD package are you using and how much are you planning on achieving with the CAD. The basic shape looks reasonable, but before you spend a lot of time modelling the tread on tyres etc. include basic but accurate outlines for major components such as engine, transmission and axles as well as define the suspension geometry, then articulate it to its limits (include steering) to work out just how much space everything will need.

Depending what program your using you may be able to get a person model of the net, though it shouldn't take too long too make one of yourself in the desired driving position.

They, don't need to be pretty, just as long as they represent the main dimensions. Then you can work on a frame design to fit around theses as well as any other components you wish to include.

[Rich.]

To be honest i think this is a far as im going to take the drawings. The mian exercise was to get a design i was happy with, and that i could forsee any problems, which i already have, meaning im now going for a traingulated rear 4 link instead of a 1 link.

Rich

[burko_uk]

I'd suggest that you'd be able to do a person in less time than it takes to down load one. The advantage being you can model the person specifically as you, and also put in th ecorrect driving position. Most people models I've seen are either sat on a chair or stood, rather than reclined in a driving seat.

I am biased as it's my job, but a few lunchtimes working on my suspension geometry on the PC made the actual job a success first time

[GeorgeSJ]

looks awesome! when do you plan to start/finish?

[Rich.]

Its already started mate, almost a rolling chassis.

http://www.4x4uk.org/forums/index.php?topic=15722.0

Thats the build thread, it needs updating desperatly, il try and do it when i get a chance.

Hopefully get it finished over the next few months.

Rich

[emily howard]

didnt realise you could get etchasketch for the pc

[N.R.G97]

[teamidris]

I had a good look at it at Cars in the Park the other month. Its going to take a while to sort out, because these things always do. And the axels are 404, so how old are they? 25 years?

To be rude to these trucks, they are huge, underpowered, over complicated and only succeed off road by halving the scale of the terrain.

And too sing their praises, they have low ground pressure, are stable, highly manouverable, and have really high ground clearance.

Too big for UK challenge?
Can't argue with that, as we are often too wide with rangy axels against standard zukes Depends on who laid it out

So not for me. I'm as tall and wide as I can go before I can't fit in the garage or on the trailer

So when starting a new build, is it small like polaris, a huge truck, or something in the middle? I guess its more about resourses than what you'ld like to do with it

[d86]

im in totall aggreance with ^^^^^^^^^..

for once a totally well scripted and balenced reply...

and all to true..the current car we are getting ready for the new season
seems very much like what you are describing..
i.m from the school of kiss on this,tube buggys are great but it does take the fun out of offroading....as you can only show off for so long...

tony

[RobotMan]

It was the panhard rod meeting the hydraulic pump on the front of the engine that stopped Barrie's motor at West Harptree. Mods made and it seems to have gone ok at the 90 degree challenge at Manby. Articulation seemed very limited, but that may have been the size of the wheels making it look less.

Big trucks would be fine if there where enough of them to fill an event which could be set out to suit. Too much money and difficulty storing/moving such beasts for the bulk of us.




Link

[boss]

another problem with this truck was the front shaft broke because the bloke (who will remain nameless) cut and welded the shafts in the offset swap instead of getting one machined up, it was then taken into the ART workshop to be givena once over

the axles are probibly 25 years old yes but i stripped my 404s down and they were immaculate inside! one of the front hubs have had a rebuild at somepoint but the other had been untouched, as had the rear.stripped down my 15 year old landrover axles and they were full of ****! they had both been rebuilt at somepoint and are far inferior to 404s in evereyway. rob tunnah leaves the difflocks in with these axles and thats with 4WS and 44" boggers....no problems

unreliable? i dont think so, jsut depends on how there built. fitting 404s is a bit of a headache when fitting to landrovers as the front needs re building and mogs dont use propshafts as such, but if you fit them correctly then they can out perform anything else you can put on your truck for the money.

i am in agreement that some of these things are too big(the above with a 110 wheelbase, 60" wide axles and 44" boggers). but it has also been said that where they find things easy a normal truck would find difficult and viseversa. there are now super challenges to suite this sort of motor but alot of them go overseas, ladoga, coratia ect

[Nobby]

heres mine

[d86]

nobby very nice.

me the other weekend..

lets play spot the difference....
i bet your is alot lighter.....

tony

yes it is before anyone ask's

[Kitesurf]

Thought you had been a bit quiet Nobby. Is that a scratch built frame or have you adapted an existing one? Either way it is a nice piece of kit.

[teamidris]

Is there a definite dislike for axels with epicyclic hubs? They've replaced portals and bull-gear set ups, and have excellent ground clearance due to the small amount of diff ratio required.
Renault M210 fire engine has them, and they look pretty slick on that.
It could just be that none are available second hand?

In plant and agri we've been testing them 'heavily' for years. Some even had oil imersed brakes

[jamie_grieve]

[N.R.G97]

[clbarclay]

Jamie, we bought a second hand axle including steering ram, but no obital valve or pump for a 12 year old medium size tractor a few years ago fro £500 from a breaker. I suspect their biggest probelm would be weight. tractors need to be heavy to be able to transmit the power to the ground at slow speeds. Most front axles are cast as a result.

Tractor epyciclic components may be of use on a custom axle casing, but I expect that whole tractor axles (even of little tractors) would be like using the big rockwell axles and excessively heavy and awkward unless you plan on running some masive tyres. On the pluss side though most have around a 55 degree steering angle (double UJ Cv joints) which puts most 4x4 axles to shame.

As well as tractors you could consider loading shovels, but again these axles are built for much heavier vehicles.