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Unread 11-23-2009, 08:30 PM   #1
Libtekguy
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Join Date: Mar 2007
Posts: 260
My Solidworks Trailer Build

I chose to design a off road adventure trailer for my final project in my Technical Graphics class. This is something I would really like to actually build someday (soon maybe?).

This isn't just a basic mock up of what I want my trailer to look like. Most of everything on it is is modeled in great detail. I wanted to pay close attention to detail because solidworks will tell you the weight of your project depending on the materials you used. So with that in mind, the things that are steel, are actually steel, rubber parts are rubber, and the water tank actually has water in it... etc. I also modeled all of the hinges to actually work.

The battery, inverter, switches, power outlet, Air Pressure Gauge and the jockey leg are not designed by me. These aren't things I would fabricate myself, so I didn't model them myself.

Some basic pics:




With the lids open:




Battery and Power Inverter (I didn't design these, i pulled them off the web)


Control Panel and Control Panel Cover


Underside: You can see the two 2.5 gallon air tanks and the 30 gallon water tank.


Close up of the axle, spring and shocks


The trailer tongue moves in for off roading and out for highway travel.



My brother owns a aircraft maintenance business and is pretty good with fabric and upholstery. I will have him construct the tent.

Here is the deployment of the top and tent.




You can also see a sink and cutting table with two drawers.





Camping isn't this trailer's only function. You can take off the top and use it as a utility trailer.




With everything on it, the trailer weighs about 1600 lbs. Nothing my wrangler can't handle.

The tires were tough to make, but I modeled them after what my Jeep has: 35" BFGoodrich KM2s on 15" Mickey Thompson Classic Locks.

List of Features:

3500lb axle
Trailer brakes (CA has a >1500lbs trailer brake law)
Extending trailer tongue
Swing away front trailer jockey leg
LED lights
Optima yellow top battery
Solar Panel Battery charger array
900 Watt power inverter
2x 2.5 Gal Air tanks
30 gallon water tank
Kitchen set
1.5" tube bumpers/rock guards
Removable top with fold out tent
Yakima rack (for snowboards, kayaks...).
TJ Fender flares.


How it will interface with my Jeep:
7 pin trailer harness
Air hose (to tie in to my OBA)
Safety chains
Military style pintle hitch
Heavy gauge 12volt line to help charge the battery.


I thought about making the trailer have a link suspension system that I could raise an lower with airbags or air shocks. But after sketching it up and some early models, I decided it was too complicated and expensive to be that useful. Maybe I can implement that with the current leaf spring set up. Trailer leaf springs for this type of weight aren't too long, nor do they have a lot of flex/travel. I would have to use longer vehicle springs, but then they'd probably end up being to stiff to use with an airbag.

Anyway, tell me what you guys think. Things I should add? change? delete?

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2003 Jeep Wrangler Sahara: RE 4.5" LA, FOX 2.0 Shocks, 35" BFGoodrich KM2s

2002 Jeep Grand Cherokee Overland: 2" BB. 31.5" BFGoodrich All Terrains

I am looking to get a set of RE 5.5" front coils. I'll trade my 4.5" or pay (not too much though) for them. Send me a PM.

Last edited by Libtekguy; 11-23-2009 at 08:41 PM..
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Unread 11-23-2009, 08:53 PM   #2
Libtekguy
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Some more views

Axle


Frame


Semi-Exploded view


My jeep that will pull it
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2003 Jeep Wrangler Sahara: RE 4.5" LA, FOX 2.0 Shocks, 35" BFGoodrich KM2s

2002 Jeep Grand Cherokee Overland: 2" BB. 31.5" BFGoodrich All Terrains

I am looking to get a set of RE 5.5" front coils. I'll trade my 4.5" or pay (not too much though) for them. Send me a PM.
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Unread 11-23-2009, 08:58 PM   #3
Flynnster
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Looks great man, only one problem. Your missing a mudflap!


Really though it looks perfect, where is your sink going to drain into?
Or is the water tank a graywater tank instead of drinking water.
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Unread 11-23-2009, 09:00 PM   #4
minimodes89
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I don't know much about trailers but I have I did had to take a solidworks class a couple years ago and I'm impressed.
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Unread 11-23-2009, 09:11 PM   #5
Peej03
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I have actually been looking into doin something like this for my tj lately (Tired of sleeping on the ground). Seems pretty doable.

Great concept man. Does it come in white with black trim??


*edit

The only thing I would add would be a spare tire, I suppose that could go on the top of the trailer? and mabe mounts for jerrycan shovel or jack. Or axe
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Unread 11-23-2009, 09:25 PM   #6
Libtekguy
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I considered a spare, but to solve that problem, it'll use the same wheels and tires my Jeep has. Shovel and axe mounts are a great idea though... I'll have to add them.
__________________
2003 Jeep Wrangler Sahara: RE 4.5" LA, FOX 2.0 Shocks, 35" BFGoodrich KM2s

2002 Jeep Grand Cherokee Overland: 2" BB. 31.5" BFGoodrich All Terrains

I am looking to get a set of RE 5.5" front coils. I'll trade my 4.5" or pay (not too much though) for them. Send me a PM.
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Unread 11-23-2009, 09:27 PM   #7
Libtekguy
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Quote:
Originally Posted by Flynnster View Post
Looks great man, only one problem. Your missing a mudflap!


Really though it looks perfect, where is your sink going to drain into?
Or is the water tank a graywater tank instead of drinking water.
Good call on the mudflap, just noticed myself!

I'll put a drain on the sink. But then again I wouldn't be treading lightly if I just drained it out on the ground. I'll add a second smaller tank behind axle, close the rear end to use for gray water.
__________________
2003 Jeep Wrangler Sahara: RE 4.5" LA, FOX 2.0 Shocks, 35" BFGoodrich KM2s

2002 Jeep Grand Cherokee Overland: 2" BB. 31.5" BFGoodrich All Terrains

I am looking to get a set of RE 5.5" front coils. I'll trade my 4.5" or pay (not too much though) for them. Send me a PM.
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Unread 11-23-2009, 09:28 PM   #8
Libtekguy
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Quote:
Originally Posted by minimodes89 View Post
I don't know much about trailers but I have I did had to take a solidworks class a couple years ago and I'm impressed.
Thanks man, I've really enjoyed it and have wanted to learn the program for some time. There is still a lot more I can learn though, that program is very dense with features.
__________________
2003 Jeep Wrangler Sahara: RE 4.5" LA, FOX 2.0 Shocks, 35" BFGoodrich KM2s

2002 Jeep Grand Cherokee Overland: 2" BB. 31.5" BFGoodrich All Terrains

I am looking to get a set of RE 5.5" front coils. I'll trade my 4.5" or pay (not too much though) for them. Send me a PM.
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Unread 11-23-2009, 09:30 PM   #9
roger24
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looks really cool.....

put these lights on it:

(don't skimp on anything less than LED)

LEDTrailerLights.com - Oval wide angle RED LED lights (Model 60 style) for cargo, utility trailers, trucks and RVs

LEDTrailerLights.com - 6 inch Oval 45 LED grommet mount white backup LED light for RVS, 4x4s, horse and livestock, cargo, utility trailers, trucks

I like the battery box and inverter.
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Unread 11-23-2009, 09:37 PM   #10
DaleII
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As far as the spare tire goes, if you have the trailer with you and lose a tire on the Jeep and take one from the trailer, what are you going to put on the trailer??

Otherwise I really like the design, very well done!
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Unread 11-23-2009, 09:38 PM   #11
Libtekguy
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LED for sure, these are the ones I modeled my lights after:
Sealed, 6-1/2" Oval LED Trailer Stop, Turn and Tail Light, Flange Mount, 10 Super Diode STL78RB : Trailer hitch bike rack and trailer hitches - etrailer.com
Sealed, 6-1/2" Oval LED Trailer Utility Light, Flange Mount, 10 Super Diode - Clear BUL78CB : Trailer hitch bike rack and trailer hitches - etrailer.com
Sealed, 6-1/2" Oval LED Trailer Turn Signal and Parking Light, Flange Mount, 10 Super Diode STL78AB : Trailer hitch bike rack and trailer hitches - etrailer.com

I might go back and make the lights more detailed to resemble the real ones more closely.
__________________
2003 Jeep Wrangler Sahara: RE 4.5" LA, FOX 2.0 Shocks, 35" BFGoodrich KM2s

2002 Jeep Grand Cherokee Overland: 2" BB. 31.5" BFGoodrich All Terrains

I am looking to get a set of RE 5.5" front coils. I'll trade my 4.5" or pay (not too much though) for them. Send me a PM.
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Unread 11-23-2009, 09:39 PM   #12
Libtekguy
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Quote:
Originally Posted by DaleII View Post
As far as the spare tire goes, if you have the trailer with you and lose a tire on the Jeep and take one from the trailer, what are you going to put on the trailer??

Otherwise I really like the design, very well done!
My jeep has a spare, same size and wheel
__________________
2003 Jeep Wrangler Sahara: RE 4.5" LA, FOX 2.0 Shocks, 35" BFGoodrich KM2s

2002 Jeep Grand Cherokee Overland: 2" BB. 31.5" BFGoodrich All Terrains

I am looking to get a set of RE 5.5" front coils. I'll trade my 4.5" or pay (not too much though) for them. Send me a PM.
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Unread 11-23-2009, 11:35 PM   #13
Peej03
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Its good that the tires are all the same, I just feel like 6 tires and one spare... I dunno.. I guess maybe I am thinking of longer expedition trips than you. Also I tend to go overly prepared. Which is why I need a trailer like this in the first place lol.

One of those awnings on the side would be kind of cool.

I am sure you have seen this website, its what kind of inspired me for a project like this. But just incase you have not and need a few more ideas

Horizon Trailer by Adventure Trailers
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Unread 11-25-2009, 01:36 AM   #14
karlo
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That trailer concept looks cool! I love the design; it's very functional and has enough rooms for the tools and other stuff.
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Unread 11-25-2009, 08:37 AM   #15
DaleII
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Quote:
Originally Posted by Libtekguy View Post
My jeep has a spare, same size and wheel
Good! I was just thinking if you didn't have one on the Jeep. Some people carry their spare in the trailer and not on the Jeep.
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