Off-Road Hard Sided Popup Trailer - Ranger-Forums - The Ultimate Ford Ranger Resource


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  #1  
Old 05-07-2012
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Off-Road Hard Sided Popup Trailer

Back in mid 2010 I was contacted by a customer to build him a custom hard sided popup camper to be mounted as a replacement for the bed of his truck. After designing the camper the customer realized he wanted more room, so I redid the design to a 14 foot tow-able trailer. I started the project at the end of September and finished it with the customer helping right up to the end of October. This is an old project, though I thought some of you guys on here would like the build.

The Concept



The Result





Details

Body size: 80" wide, 12' base length with a 2' kick up making 14' overall length, 80" inside height lifted and 56" inside height lowered.
Roof is controlled by electronic actuators rated for 200 lbs each with a 24" through.
Double door for access for roof in up or down position.
6000 lbs Solid Axle on leaf springs with air bags for weight control
Chassis is 2x4 .120 wall steel tubing.
Body structure is 1x1 .120 wall aluminum skeleton covered by .040 aluminum sheeting.
Weight once chassis and body complete was roughly 1600 lbs.
Attached Thumbnails
Off-Road Hard Sided Popup Trailer-concept_drawing.jpg   Off-Road Hard Sided Popup Trailer-modelo-after-completion.jpg   Off-Road Hard Sided Popup Trailer-concept_drawing.jpg   Off-Road Hard Sided Popup Trailer-top-closed-left.jpg   Off-Road Hard Sided Popup Trailer-concept_drawing.jpg  

Off-Road Hard Sided Popup Trailer-top-closed-left.jpg  

Last edited by safaripacific; 05-07-2012 at 04:50 PM.
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  #2  
Old 05-07-2012
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Material arrived. 2x4x0.125 tubing




Cutting out all the chassis tubes.




Beginning the layout







Attached Thumbnails
Off-Road Hard Sided Popup Trailer-001.jpg   Off-Road Hard Sided Popup Trailer-002.jpg   Off-Road Hard Sided Popup Trailer-003.jpg   Off-Road Hard Sided Popup Trailer-004.jpg   Off-Road Hard Sided Popup Trailer-005.jpg  

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  #3  
Old 05-07-2012
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Starting the tongue







Marking receiver tube on front of tongue.




Cutting hole to pass receiver tube through.




Drilling hitch pin hole.

Attached Thumbnails
Off-Road Hard Sided Popup Trailer-006.jpg   Off-Road Hard Sided Popup Trailer-007.jpg   Off-Road Hard Sided Popup Trailer-008.jpg   Off-Road Hard Sided Popup Trailer-009.jpg   Off-Road Hard Sided Popup Trailer-010.jpg  

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  #4  
Old 05-07-2012
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Double checking placement of tire and jack.




Max coupler fit check. Had to trim 1/2 inch off to keep grease fitting clear.




I setup a crude way of assembling the chassis on a table using thick c-channel.




While assembling I pulled some sacrificial wire to use a pull string for final wires.

Attached Thumbnails
Off-Road Hard Sided Popup Trailer-011.jpg   Off-Road Hard Sided Popup Trailer-012.jpg   Off-Road Hard Sided Popup Trailer-013.jpg   Off-Road Hard Sided Popup Trailer-014.jpg   Off-Road Hard Sided Popup Trailer-015.jpg  

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  #5  
Old 05-07-2012
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I clamp everything down after laying all the tubing in the correct places.




After tacking the tubing in place I start on the outside sections




When the outside sections are tacked in place I start working on the stairwell.




Then the whole chassis is flipped over to align the axle for mounts.

Attached Thumbnails
Off-Road Hard Sided Popup Trailer-016.jpg   Off-Road Hard Sided Popup Trailer-017.jpg   Off-Road Hard Sided Popup Trailer-018.jpg   Off-Road Hard Sided Popup Trailer-019.jpg   Off-Road Hard Sided Popup Trailer-020.jpg  

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  #6  
Old 05-07-2012
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Once aligned and mounts tacked in place I begin welding up the chassis.




After welding I grind down the exterior welds.




Attached Thumbnails
Off-Road Hard Sided Popup Trailer-021.jpg   Off-Road Hard Sided Popup Trailer-022.jpg   Off-Road Hard Sided Popup Trailer-023.jpg   Off-Road Hard Sided Popup Trailer-024.jpg   Off-Road Hard Sided Popup Trailer-025.jpg  

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  #7  
Old 05-07-2012
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That's awesome. I enjoy reading you threads when you are building something.
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  #8  
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Originally Posted by morris View Post
That's awesome. I enjoy reading you threads when you are building something.
Thanks!
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  #9  
Old 05-07-2012
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Next I square up the tongue.




Then weld the outside seams.




Receiver tubing is squared up and tacked in place.




The backside of the back tongue tubing is cut out, so I can weld and tie the rear of the receiver tube to the outside.




Then I cut a 2x4 section to continue where the receiver tube ended.

Attached Thumbnails
Off-Road Hard Sided Popup Trailer-026.jpg   Off-Road Hard Sided Popup Trailer-027.jpg   Off-Road Hard Sided Popup Trailer-028.jpg   Off-Road Hard Sided Popup Trailer-029.jpg   Off-Road Hard Sided Popup Trailer-030.jpg  

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  #10  
Old 05-07-2012
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I clamp everything down and weld it all up.




Back to the stair well.




I flip over the chassis again and place it on jack stands. Then finish the stair well support. I angle the ends so there isn't a hard edge.




Base chassis complete.



Attached Thumbnails
Off-Road Hard Sided Popup Trailer-031.jpg   Off-Road Hard Sided Popup Trailer-032.jpg   Off-Road Hard Sided Popup Trailer-033.jpg   Off-Road Hard Sided Popup Trailer-034.jpg   Off-Road Hard Sided Popup Trailer-035.jpg  

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  #11  
Old 05-07-2012
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That is SWEET !!

Chris Sr.
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  #12  
Old 05-07-2012
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You do awesome work!
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  #13  
Old 05-07-2012
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Damn I wish you weren't on the other side of the country, I'd love to have you build one of your setups for me. I've been looking for something like your last build but I think I like this one even better...
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  #14  
Old 05-07-2012
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Great work! Looking forward to some more pics!
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  #15  
Old 05-07-2012
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Awesome work man!!! That is gonna be one heavy wagon.
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  #16  
Old 05-07-2012
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Looks awesome! I may have some welding to be done soon. Maybe you can help me out.
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  #17  
Old 05-11-2012
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Quote:
Originally Posted by Chris Sr. View Post
That is SWEET !!
Thanks!

Quote:
Originally Posted by littlered View Post
You do awesome work!
Thanks!

Quote:
Originally Posted by Y2KTJ View Post
Damn I wish you weren't on the other side of the country, I'd love to have you build one of your setups for me. I've been looking for something like your last build but I think I like this one even better...
The guy I built this for is on the east coast. He was out by me for vacation then towed the trailer home when it was done. If your interested shoot me an email. travis at safaripacific.com Getting a trailer shipped is actually not too bad.

Quote:
Originally Posted by FULLSCALE View Post
Great work! Looking forward to some more pics!
Thanks!

Quote:
Originally Posted by MidnightRebel07 View Post
Awesome work man!!! That is gonna be one heavy wagon.
Thanks! Actually when it rolled out of the shop it only weight 1600 lbs (chassis and body only, no interior). Super light considering its size.

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Originally Posted by 98liftedranger View Post
Looks awesome! I may have some welding to be done soon. Maybe you can help me out.
Thanks! Yeah I can do that. My brother has a shop here in Temecula. Most of my equipment is there right now.
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  #18  
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Next I work on getting the axle square with the chassis.




Then I weld up the spring perches.






Then toss on the 35" BFG KM2's.



Attached Thumbnails
Off-Road Hard Sided Popup Trailer-036.jpg   Off-Road Hard Sided Popup Trailer-037.jpg   Off-Road Hard Sided Popup Trailer-038.jpg   Off-Road Hard Sided Popup Trailer-039.jpg   Off-Road Hard Sided Popup Trailer-040.jpg  

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  #19  
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Looking good once again... thanks for the updates!
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  #20  
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Now its onto the long process of building the body out of aluminum. The entire trailer was build by me in a CAD program. So from that I disassembled the parts of the trailer (tubing) and made cut lists. A friend of mine came to help start making all the cuts. Jim, the customer, arrived after the first couple weeks of building at took over cutting the material.

All the base tubing is clamped into the chassis.




The outside edges (corners) are welded together with my aluminum wire feed attachment to my welder.




Once welded all of the anchor holes are drilled. The top holes are larger to allow the bolt head and socket to clear.






I made a quick jig on my steel table and made the wheel wells. Then welded them on.

Attached Thumbnails
Off-Road Hard Sided Popup Trailer-001.jpg   Off-Road Hard Sided Popup Trailer-002.jpg   Off-Road Hard Sided Popup Trailer-003.jpg   Off-Road Hard Sided Popup Trailer-004.jpg   Off-Road Hard Sided Popup Trailer-005.jpg  

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  #21  
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The body frame was secured to the chassis with self tapping bolts. Up rights for the lower walls are also cut and ready for welding on.(on tongue)




Next I start working on the rear kick up. Notches are made to create the correct bend. This was also designed in CAD. Makes production go much faster.




This is how the kick ups are to be placed.




Lower section of the wall welded and kick ups welded in place.



Attached Thumbnails
Off-Road Hard Sided Popup Trailer-006.jpg   Off-Road Hard Sided Popup Trailer-007.jpg   Off-Road Hard Sided Popup Trailer-008.jpg   Off-Road Hard Sided Popup Trailer-009.jpg   Off-Road Hard Sided Popup Trailer-010.jpg  

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  #22  
Old 05-11-2012
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Lower wall mostly complete.




Extra bracing is placed in the corners.




A temporary cross bar was placed between the tops of the lower wall. This helped from warping while welding. Aluminum warps a ton when heat is applied.




So far looking good.




Middle wall started.

Attached Thumbnails
Off-Road Hard Sided Popup Trailer-011.jpg   Off-Road Hard Sided Popup Trailer-012.jpg   Off-Road Hard Sided Popup Trailer-013.jpg   Off-Road Hard Sided Popup Trailer-014.jpg   Off-Road Hard Sided Popup Trailer-015.jpg  

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  #23  
Old 05-11-2012
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They guy is running km2's on this thing? Wtf? I guess if you got the coin whateves right?
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  #24  
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The middle wall on the back was tricky to keep square. I used a piece of steel tubing to help. This steel tube was also used on the lower walls.




Top bars on the middle wall set in place.




Upper perimeter completed. The customer Jim standing inside. He's over 6 foot tall by the way. Jim also put in a plywood floor. The original plan was to use a composite material for the floor, though in a time crunch we opted for plywood instead. The underside of the plywood was coated with bed liner material.




A crap ton of clamps were used to fasten the aluminum to the steel tubing, so everything stayed plum and square.




Next I work on the rear windows.

Attached Thumbnails
Off-Road Hard Sided Popup Trailer-016.jpg   Off-Road Hard Sided Popup Trailer-017.jpg   Off-Road Hard Sided Popup Trailer-019.jpg   Off-Road Hard Sided Popup Trailer-020.jpg   Off-Road Hard Sided Popup Trailer-021.jpg  

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  #25  
Old 05-11-2012
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They guy is running km2's on this thing? Wtf? I guess if you got the coin whateves right?
He wanted the clearance to match his truck. The turnover angle from the front axle to rear axle on his truck is exactly the same as the rear axle to the trailer axle. So if the truck makes it the trailer will. The tires will also help while off-road on angles. Less likely to slide with km2 vs street tires. So it is an investment in keeping the trailer from being bashed up.
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