Adventure trailer build thread. | Page 12 | Ford Explorer Forums - Serious Explorations

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Intro:
This is not a common build here on this forum, but this build is part of another long term build, that has been going on for 10 years now. I feel it is fitting to share this build here, since so much of it's companion is documented on EF. This thread is as detailed as my patience has allowed. I want to be able to help others that might be searching for methods/ideas, and "how to" for much of the build. I do belong to other Overland forums, and will link this thread from them, to share with others.

About:
This trailer is a short compact, stout, capable, high clearance, Swiss army knife of a camper. It is not a popup camper, nor is it a sleep in hard shell camper. It will offer all the creature comforts those do, but in a little different fashion. This style trailer, makes you enjoy the outdoors. You cook/dine, lounge & hot shower outside, but you sleep inside a roomy insulated roof top tent, 78" off the ground.

The tow rig:

The Black Hole

The entire build for the tow rig, has always been with this build in mind, and it has been extremely difficult to keep that to myself, and why it was built the way it was. It is a purpose build, with a specific objective.

The Objective:
To be the living quarters and storage, for off the beaten path journeys yet to come.
To have everything needed to sustain myself, and a few others, out in the middle of nowhere, only accessible by unpaved trails, such as old mining roads. Hauling all the boondocking gear behind, instead of overloading the vehicle's suspension. To minimize setup and tear down times for camping, and have camping items readily accessible, whenever needed.

The trailer needs to be capable of following wherever the tow rig goes. Matching tires, axle width, and the same, if not more height clearance as the tow rig. Sleeping & shelter for 4 comfortably, sustainable cold food storage, food prep space, gas powered cooking, AC/DC power supply, and hot showers for days at a time, are all the requirements for this build.

Goal:

This is the other half of that long term build plan. I am slow at the building and fabricating process, and this will take about a year to complete. Updates will happen as the build progresses. I have entered the 7th month of the build, and expect another 3-4 months left to get it road worthy at the least. Just like anything I have done, it never ends, and improvements will happen, as I gain experience & knowledge with what works best for me.

Baby steps:

This is the first time I have ever attempted anything like this. I am bound to make mistakes, and corrections/improvements are all but a guarantee. I do have a final vision for what I want this to be, as it has been a thought process for many many years now. Please bear with me as this thread goes. Some items won't make sense until it comes to be. I am not going to tell you how things should be done. I am just sharing how I did things on this build. Agree/disagree, like it or leave it, it's mostly a learning experience by mixing what I know, and what I had to learn, to get things as I want them. Definitely not for everybody. Heck, I know I will change things down the road, as I find ways to improve on it. That is part of the fun!



Why am I building this?
I'm Tired of ground tent camping all my life. Tired of the time it takes to set up & tear down. Tired of all the tedious packing, unpacking, moving things from place to place after every trip. Plus, I don't want a motor home that can't leave the roads.
I plan on getting lost a few times, venturing out to places unknown and unseen. We live in a large, beautifully gifted geographical location on the planet. Our own back yard is filled with amazing spectacles. Places that can only be seen on dirt trails, off the beaten paths, not by roads covered in pavement, and delivery trucks. Exploring into the dark hours of the night, and setting camp in the middle of nowhere, instead of heading back. We can traverse a lot of ground this way.

Kudos:

A few friends helped with this build, and I couldn't have got as far as it is without them. Special thanks to James, Matt, Kurt, Ryan, & Jacob. You guys rock!

A warning from the author:

This thread contains: Long drawn out boring tedious explanations, Dry humor, embarrassing anecdotes, speech in the 3rd person, countless pictures, and some content is for Mature audiences. There is a little for everybody here, but be warned, this is not your typical build thread, and not from your typical builder. I am not responsible for your emotional mood swings, due to reading this material. ;)

Edit: Progress pics as of 10/15/18. Getting closer every day!

Dr washed.jpg

RTT on front pass side full view.jpg


First real use!

Camp set 1.jpg

Camp set 2.jpg

Bat wing awning up.jpg



Current specs:
Main Frame- 12'.5"L x 48"W
Whopping 25" of ground clearance with 35" tires
Fenders- 72" Long x 14.00" Wide tapered to 0.00" in front
Cabin- 48"W x 72"L x 36"H
Overall Width - 76"
Overall Height - 68" Roof Rack lowered - 78" Roof Rack lifted
Overall Height- 80" With RTT stowed - 140" RTT open & rack lifted
Dry weight- 2300#'s

2"x3"x3/16" Steel Tube Frame, with 1 pc center tongue beam from front to rear.
3500 Lb Timbren Axleless Independent suspension
10" Electric brakes
35"x12.5" Goodyear MTR's w/kevlar & matching spare
15"x10" Mickey Thompson black satin aluminum wheels
Lock N Roll off road articulating Hitch
14 Ga steel cabin walls & roof
3/4" Ply floor, stained, sealed, & 5 topcoats of acrylic gloss clear
Commercial 60 Mil Waterproof TPO membrane under belly skin
12 Ga steel Fenders on Sq frame & 2" x 3/16" Round slider tubes
Spare tire mount on cabin front
16 Ga swing out 4'W x 2'D x 24"H Tapered Tongue box
16 Ga Side boxes with Tapered front compartments
Telescoping Roof rack (12") with scissor jack actuation
Two rear 31" BAL C leveling jacks & swivel plate base
Dual 5K swivel weld ring flat plate base Tongue jacks
ARK dual wheel offroad 750 HD Tongue jack
Slider system for hidden Solar panel storage
Dual 11 lb Propane tank storage mounts
Quick Disconnect Water supply
All Stainless & Aluminum hardware, where applicable

Interior:
Front compartment 48"Wx24"Lx36"H
Two side doors, and upper 12 ga shelf with expanded metal rear wall
Rear Compartment 48"Wx48"Lx36"H
3/4" PT wood flooring, custom finish, clear satin marine topcoats.
Tie downs on frame tubes
1-60W Led rear cabin, 3-10w Led front cabin
Wiring plumbed with flex and hard conduit
Split cabin with full rear cabin deck, tie down racks

Power:
Dual Group 31 MAGM deep cycle 110 AH batteries
110 shore
100W Renogy Solar
Charge:
NOCO Marine 110v 20 amp onboard Dual smart charger
30 amp Renogy MPPT Solar charger
140 amp traveling vehicle charge, via smart charger
Soon to come: 40 amp-500 watt DC-DC charger from alternator
Portable Valence 80Ah Lifepo4 Solar Gen w/inverter

Accessories:
4 season 23Zero 73" Walkabout RTT W/ large Annex room - telescopic ladder w/rung pads- Ext shoe bags-Led lights- 3" thick x Ca King mattress w/anti condensation mat.
Oversized high density 3" thick 56" x 96" mattress. Cold weather cover, additional secondary rain fly.
Rhino Rack 8.5' Bat Wing 270* Wrap around Awning (2019 version)
5Liter - 1.5 gpm - On demand instant hot water heater
ARB/ViAir 150 psi onboard air system
Ready Welder II
Slide out Kitchen/storage- 1/2" Baltic Birch, sealed/stained/clear coats 350# slides
ICECO VL45 portable fridge/freezer - AC/DC
Custom powder coated locking Fridge slide out.
Wireless controlled winch (upper roof rack storage, rear bumper hitch receiver)
Rear door interior fold down table
Dual 11 lb propane tanks (rear fender mounted)
Marine control panel, rocker switches w/circuit breakers, 12v battery meter, Aux outlets
30 gallon fresh water tank & 3.0 gpm instant on pump w/ inline filter
Trailer Harness Connection lock box
First Aid field kit (large)
Dual Fire Extinguisher's

LED Lighting:
Front- 2-45w dual pods w/amber fogs
Sides- 4-18w pods
Rock- 4-10w blue IP 67
Cabin- 1-60w 3 setting round rear compartment ceiling fixture, 3-10w pods front compartment
Tails/brakes/turns- 30w 6" oval
Reverse- 30w 6" oval
Markers- 3w red & amber
7 pin RV trailer harness & J box

Tongue box build:
Full box tube frame & 16 ga sheet, w/plate and tube gussets
Dual battery mount tray
Red oak Shelf for Noco dual 20 amp charger, 20amp solar charger, 12v systems (3) circuit breakers, fuse panel, main power cutoff switch
3 space divider walls & front storage shelf
Gas lift struts, 2"x 3/16" thick Aluminum lid hinge
Dual SS locking paddle latch handles
Dual 4" SS louvered vents w/bug screens
Pass thru power cord outlet with weatherproof door hatch
NOCO 110v wall power plug w/ weatherproof cover
2k locking latch to frame, & dual 7/16" clevis pins to frame
5/8" spindle for swivel action, for spare tire removal/security

Paint:
Frame- Chassis saver gloss black
Cabin Exterior- Acid etch primer & Single stage Gloss Black automotive 2k urethane
Cabin Interior- SW DTM Gloss White
Side & T boxes, All doors- Urethane Epoxy primer & Single stage Gloss Black 2k Urethane
Roof rack- Chassis saver gloss black
Fenders-Acid etch primer underneath & Urethane base topside, Black Raptor liner w/grip additive

Trim: Aluminum



Lots to add to that list up there, and I will as the build progresses. :)

I hope you enjoy the thread, as much as I have enjoyed the build itself.
 



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Made some LED light brackets, for under the trailer tonight out of Alum angle. Made bolt tabs so I can mount the lights, then install it as one assembly.

Pod Brackets.jpg


Will work on getting these installed over the weekend.

Been doing some thinking with the Timbren axles I used. I think I am going to swap them out for a bigger set of 5200 lb units, with a better spring rate for these big ass tires. The spindles on the bigger units are made with 1/2" plate and 1/2" gussets. These are 3/8" cast, no gussets. They are a little bigger overall to the frame, and I would have to weld on some plate to the frame for new bolt holes. The new holes needed, would just overlap the existing holes by 1/4". That won't Chooch. I just seen pictures of somebody bending the cast spindles like mine after falling into a hole with a 3500# trailer. I honestly do not know what this thing weighs dry, let alone loaded up for a trip yet. I am just guessing, but I am thinking it is over 2k as is. I want the axle to weight ratio at 50% or better. I'm past that I think.

Adding the plate isn't a big deal, but the bigger units take a larger brake hub, and start at 6 on 5" lug patterns, and up from there. This means the wheels wont work as is. I have room for a 1" wheel spacer, but I haven't even looked to see if there is a 5 on 4.5 to a 6 on 5+ yet.

Uncertainty is setting in with these 3500 lb units, and I feel it would be wise to swap now. I can sell these for a good amount, as they haven't been used yet, just mounted, and nothing done to them. The bigger unit's are only $100 more. I didn't choose them because of the lug pattern availability, and now I wish I did. :(
 



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Rock on Dude!!

Rock light materials.jpg
pods on frame front.jpg
pods on frame rear.jpg
rock on 1.jpg
rock on 2.jpg
rock on 3.jpg
Rock on 4.jpg


That took longer than it should have, but my OCD/Retentivness kicked in hard today. Happy with how it turned out, light pattern is evenly dispersed, and the entire underside of the trailer is lit up with just 4 lights.
 






LoL You and your lights.... Never seen a rig with more lights on it, but then again, we were never bumping around in the dark while camping with you around! ;) :)

If you do decide to upgrade those axles, let me know. I may be interested in your 3500lb axles.
 






Well, in my defense, I am old & half blind, so the more lights the better. lol

I am going to be talking with whom I purchased them from next week, to see if I can trade them back in for the bigger axle. If they say GTFO, I will let you know.
 






You'll be able to spot any undesirables hiding under that from far away. Nice,
 






Yeah, like bears!!

I chose blue to give a soothing light for camp, and they actually have a purpose for spotting, on hard climbs / decents when you need to see the wheels and trail at night.

Blue reminds me of boating at night, and that's one of the most relaxing things I have done.
 






Started this fine windy Sunday morning by working on the Propane tank mounts.

Two 11 lb pancake tanks will be mounted to the main box, in the rear, on top of the fenders. These needed a little modification to work how I wanted them. The bolt bracket on them are 2" away from the tank clamp straps, and pushed the edge of the tanks, past the edges of the fenders.

So, I marked them, cut out a little over 1" of the bracket, and welded them back together. Primed & painted back up.

Before:

propane mount before.jpg


After:

propane mounts after.jpg


That's as far as I got. High winds came through, and had a bunch of tree damage to contend with for the rest of the day. Just now making lunch at 6pm.
After these get installed, I can start on the next fabrication project. No wonder these things can cost up to $50k, the labor times are crazy high. Pushing 2000 hours already!
 






Fitted the strap mount to a tank to line up the bolt holes for drilling, and it dawned on me..... I need to make these things lock. Not that I am not a trusting person, it's just that I don't trust the public at large, in general. :D

So all I can think of is to weld a hasp hinge to the black strap, and bolt the other end to the galvanized clamp end. If anybody has another idea to fit a padlock or maybe even a hitch pin lock, by all means, share the ideas!

clamp on tank.jpg


Looks like it's overhanging in the picture, but it's not.

20181029_180257.jpg
 






Forgot to post this little dealio for @BKennedy to see.

These little UWS rod connectors for the paddle latches on the Tongue box. 1/4" alum rod, cut to length, inserted in these, and a simple Allan head set screw with a pointed tip, digs into the rod, for a tight connection. Connects two latches together, and when you open one, the other opens as well.


UWS rod connectors.jpg
InkedRod on latches_LI.jpg
 






Ok, another little $$ saving victory today.

These propane tank clamps are actually made for holding commercial LPG tanks horizontally, on forklifts. Those tanks take two clamps, so they both come as a kit. These are beefy heavy duty clamps, with 3/16" thick straps and adjustable 3/16" fulcrum clamps. They cost 1/3 of what the aftermarket companies are selling the glampers for tank mounts. I have seen some up towards $150. I knew I could make these work, by putting them in the vise, and massaging them to fit the pancake tanks, as they only differ in diameter by 1/2" from commercial LPG tanks. (That's from the seam weld in the middle)

I got two mounts for two tanks out of this kit, and it only cost me $25, plus what I just added ($10). So for 1/3 the cost, of one tank mount, I have two beefy tank mounts. Just took a little modifications, a little dash of this, and a sprinkle of that.

Looking at all the Hasp hing locks the hardware gettin place offered, I really didn't see anything that looked beefy enough, to modify to my wants. I kept looking up/down the 200 ft isles of brick-a-bracs offered, until I found what I could make work. A 6" gate hinge that is at least 1/8" thick, and has a big meaty hinge, ready to be abused.

Cut some meat of it's bones on the ends, made a bend in the vise, drilled the holes a bit bigger, marked & drilled holes into the clamps, bolted it on with 1/4"x0.75" Stainless bolts, and made my marks on the other side for a slot.

Drilled out the slot with a 1/4" bit, then cleaned it up with the dremel cutting wheel & grinder stones. With the slot made, I could now mark the strap by tracing the slot onto it. Mark the steel strap, for where I would weld on the small bolt tabs I made, out of the sections I removed from the clamp brackets. (Pack rat, I am)

Using a welding magnet to hold the little booger of a tab in place, it was welded, all around, then welds cleaned up, so the lock hasp would fit tight. Prime & paint per the usual followed.

Confused yet? Ok, Pictures to show what the heck I am talking about.

Clamped tight, lock hasp open...

propane clamp lock open.jpg


Closed up and stainless hitch pin lock installed. I will probably trim it down in length later.

Propane clamp locked.jpg


That will Chooch!

These bolts will have to do, until I get some security nuts/bolts ordered up. (Using them for other things on the trailer too)

If your wondering what the gray is on the bottom of the tanks, its a rubber gripper that fits tight on the tanks. It grabs metal, like a hooker with Kung foo Grip. Also protects from any scratching from the tank bottom.

Tank tire on.jpg


So now, it has a small theft deterrent, and it holds the clamp locked, no matter what. No worries of it getting jarred open somehow on a trail. If someone wanted it bad enough, they can get it off, but having to work at it, might just be all it needs, to change a mind.

Got both mounts installed. I can now order the 2nd tank, and add it. The Dr side tank will get a regulator on it for the instant hot water heater. Pass side tank will feed the cooking stuffs, and what I have already has regulators. So hook up the line, when needed, and done.

Stainless hardware to the cabin wall, with large fender washers behind for more surface contact to spread the load. Rubber washers between the mount, and outside wall, to waterproof the bolt holes.

Dr side mounted with no tank

Dr tank mount.jpg


Pass side with tank, and trimmed down lock pin.

Pass tank mount.jpg


Hope this little mod helps someone down the road looking for a cheap, but very strong tank mount.
 






Ready,

set,

weld!

Ready welder in side box.jpg


And when you burn yourself from welding....

First aid kit in side box.jpg



Just playing around, seeing how things will fit & store in the side boxes. Pics are for entertainment purposes only, and who the heck knows what the final arrangement will end up like. :laugh:
 






I like a big first aid kit. Out away from civilization you need as many things as possible.
 






Agreed. That first aid kit stays inside the Black Hole, and has been used several times already. lol

I have the front driver's side box compartment reserved just for medical stuffs. When I can afford it, I will buy a "My Medic" bag and keep it in there. I already have the Red Cross vinyl for the door face.

Check it out here:

First Aid Kits
 






sanitary napkins are good to have also in case of a huge wound. Plus, they smell pleasant when you open em, .

Nice work on the gas bottle security. Real nice.
 












As for the propane tank mounts, is there some sort of material on the inside to prevent spinning of the tank, if someone wanted to spin one to dismount it? Pry tight enough now, but after repeated use, or some ambitious thief :dunno:
 






The fulcrum clamp is adjustable. Can tighten it by turning it, as it is threaded. It's super tight now, and you can't turn the tank. The base on it grips as well.

Besides, these straps are thick 3/16", doubtful they bend any. Time will tell I guess.
 






Decided to take some overall measures and compare them with some of the well known, higher end units available out there. To my surprise, this fits in with them. On the list made by Expedition Portal, some are teardrops, some are tub with lids, and some are like mine with the larger storage cabins. These start at $18k up to $64k, with the most around $25-35k. I would share the list, but not sure if it is ok, to do so or not. Here is the link the review. Spec sheet is towards the bottom.

Home on the Range

This trailer:
Height > Cabin roof - 64" .................. Roof rack- 69".................Roof Top Tent (closed)- 83"
Width > 77.5"
Overall Length > 154" (12'-10")
Axle hub to coupler Length > 124"

The only measure that is a bit off is the axle to coupler. I made the tongue arm half the width of the tow rigs bumper width. This is so it can jacknife past 90* and only the tounge would make contact with the bumper, and nothing hitting the tow rig. This made it about a foot longer than the tow rigs wheelbase length. Ideal measure would be the same or less, for tracking on the trails. I will just have to accomodate for it. This measure would be perfect for a pickup truck, just not so much for a short wheelbase SUV.

In other news....

I had a nice long conversation with Timbren Axles in Canada about going to the bigger units, and what it will take on my end to make it happen. We hammered out a bunch of the spec details, and they have a combination that should work for me.

To make this swap work, I have some thinking and some things to do to the frame first.

These mount with three 5/8" bolts thru the frame rails. The heavier units are a little longer, and the space between the bolt holes are wider at 5.00", compared to mine at 4.250" The current units use 1/2" bolts.
I have to re-use the center bolt hole (drill out to 5/8") to the frame for the bigger units to start. Drill new holes for the other two bolts that hold it onto the frame. I need to fill the old bolt holes solid as the space between the old & new holes will be small. Still thinking of a good way to do this. A plug weld might work okay, but I think if I weld in some 1/2" solid rod the width of the tube, it would be stronger.

The bigger units also take a bigger center support tube. Current units use a 2"x2"x1/4" tube from unit to unit. The bigger units use a 2"x3"x1/4" tube.

The heavier units are actually 5200 lb spindles that use a 12" brake & 5 bolt hub. I would have to get both of these new to replace the 10" brake & 4 bolt hubs. Timbren & I had to calculate the widths to stay close to mine, by cross checking multiple spindles they have. We choice to use the HD 5200 lb with 4" lift, for regular width tires. The difference in these, and the spindles they have for off road tires is just the length of the spindles from the mounts. Off road spindles would have increased my track width by 4". The new units hub to hub face measure will actually match mine within 1".

These bigger units will only work, if they aren't much longer overall, as the wheel wells are fixed, and can't be changed up. Can't have the rear of the tires rubbing or too close to the fender tubs. My arms and the bigger arms are the same length, but the distance from the frame center bolt to the arm bolt is whats important here. I am waiting on a measure, to compare to mine. This measure is crucial, and will tell me if it is indeed even possible to swap. The bigger units, also have more deflection with different rate springs. Current units have 1-3/4" up travel, and bigger units have 2-5/8" up travel. I would clear the fenders by 3/4" only on top. Not much room, but there wasn't a lot to begin with.

So the next pill to swallow is the wheels lug patterns. Keeping the tires under the fenders, and not radically changing the track width, means I have to buy all new 17" x10" wheels with a 6 on 5.5" pattern. Conversion spacers would not work, as they would add 4". I looked for 1", but couldn't find any, but even the extra 2" would not work. The 94 Explorer needs new wheels & tires, and I would only have to buy one more for a set, but having 3 vehicles with the same wheels might be a little funny, no?

Next hurdle is to convince etrailer to swap these never used, only mounted units back, and pay the difference for the bigger units. $100 more for the units, and another $300 for hubs & brakes, then add another $400 for new wheels. The 2x3 tube and hardware, another $50. To do the swap with the trade in will cost me around $850, when if I just got the larger units from the start, only a couple hundred more for everything. :(

Final nail in the coffin would be, if etrailer told me to jump off a bridge, and said no dice dude. That would raise this swap to $1,750. I just can't do that now. I would have to sell & ask at least 80% of what I paid for these current units, and have to have a fast turn around for that to offset the costs a little. Would have to buy one item at a time, spread out over many months even. Work is about to come to a standstill for the winter, so timing isn't right for this.

Why am I telling you all this? To show how a simple build decision can cost you, down the road. For those reading this thread, for build ideas of your own, I can't stress enough, to think the overall weight & size of your build as best you can, and choosing the right axles from the start.

Okay, my brain hurts from all that, and you probably fell asleep 3-4 times trying to get thru all that. Until next time..... Pasta!
 






I like that planning, and I hope that works out for you. I just woke up from a nap(listening to some of the election talk). I did also just eat pasta, very good but I'm whooped now.
 



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So, axle supplier said go away Noonan, you bother me.

I am just going to buy a spare spindle, (works both sides) and carry it in the trailer. If it bends on a trail somehow, It's easy enough to swap out. I was just being over cautious, and nothing will probably happen. Better to be safe than sorry. If it does bend somehow, then I will do the 5200 lb axle swap.

Haven't really done much to this lately, as I have been under the weather. Motivation is kind of at a low.

I did make this 2"x2" cross bar with a 2.5" hitch receiver, for the rack up top. It will be a multi-use item, for things in the back.

Can stow the winch, a hitch basket, or whatever I feel like putting up there. For now, the winch will be stored up there.

Winch bar loose.jpg


Once it is mounted, I will update with a picture. Waiting on the Brown breadbox truck to drop off some items for this little project.
 






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