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The Ultimate DIY thread - Ubuilding (Pics)

DeadeyeLefty
Explorer
Explorer
Hey all,
There is another, albeit smaller, side to this whole RV thing - those crazy folks who build their own for whatever reason. Whether you've scratch-built it from the ground up, assembled a kit, or (like me) scrounge up appropriate frames and go from there: let's hear about it.

I'm on number three.
The first was simply a utility trailer that got an enclosed box for a fraction of the cost of the used toy haulers I was looking at. It was carrying mountain bikes and race gear, so the GVW didn't matter and all the commercially built units were overkill for what I needed. A guy my dad worked with had a dump trailer he didn't need anymore...and so it began.

Number two was a more adventurous project. I started with a tent trailer deck and built a steel stud frame and sheathed it, first in OSB then in 1/4" ply when that failed dismally. I camped the trailer as a bare shell a few times, but the noise when the wind blew wasn't conducive to a good night's sleep. It's still on my 'ideas' pile, but it wold have to be FAR more rigid than that 'technology demonstrator' was.
Those two were pre-internet and pre-digital (for me at least) so there are pics but they are in a box in the basement and haven't seen the light of day in a long time...lost at sea.

Then I got a great deal on a 24' 1977 Dodge C..."had I known then what I know now..." nuff said.
That was how I found this forum.

A couple other projects and work since then and now I'm at a stage in my life where I want to go back to school and get the education I should have gotten years ago. Part of that 5 year strategy is staying in a trailer to keep my accommodation costs down....the rub is that I drive a compact pickup and don't have said trailer.

For this boatbuilder, the solution was a cinch...
My principal build requirements have been low build cost, low towing weight, four season (no canvas) and a permanent bed.
So far, I am building to all of those except for a minor concession in the bed - it will convert to form one side of the dinette.

I started with a tent trailer - $50 on craigslist. Once the body was off, the build could begin:


The deck is a sandwich of 3/8 ply, 1" foam, and 1/8 doorskin on top to provide some puncture resistance. At the moment, I'm sheathing the top of the deck in epoxy and 6oz cloth (pics to follow). The body will be foam and epoxy and will be shaped like a horse trailer - the head will be u in the nose and the bed will be in the back with a slide out in the back wall for a footwell. I will have to fab the (manual) slideout mechanism. My plan is to use heavy duty drawer slides, but any insight there is appreciated.

This is the completed but not yet glassed deck:
.

For the appliances, I scrounged up a free camper on craigslist. For the cost of a case of beer and the dump fees ($60), I got a stove/oven, two way fridge, lantern, windows, and a bunch of other bits. I still have to replace the heating element in the fridge (works great on gas) and the furnace valve body was beyond my desire to fix it, but otherwise everything works great and just needs to be cleaned up a bit.

Today, I'll be glassing the rest of the deck and next weekend I'll start assembling the cabinet carcasses and bulkheads. I was going to get the shell done first (the way you build a house) but the overhang off the back will be easier to build if I have the bed framing in place first. All will be built with 1" foam and then glassed. I haven't decided to make a weight concession with the galley countertop and dinette table and go with 3/4" ply or to use foam with an upper skin of 1/4" ply. Either way, they will be small enough that I can make both from the leftovers.

That's my build to date...let's hear about yours !
137 REPLIES 137

DeadeyeLefty
Explorer
Explorer
The idea for pulling air from under the trailer came as a result of seeing where the dog likes to hang out when we're in camp & it's away from any smoke, exhaust, etc.

I've seen people box and duct window air conditioners so that they can have a supply and a return duct while keeping the box (and its noise) outside the trailer. With a bit of ingenuity, I'll bet one could duct or baffle the furnace to draw from wherever you wanted.

UP, that's quite a project you took on. I've got a similar 'donor' trailer rotting in a field, waiting until I have the truck to move it and the place to rebuild it:

The tin is good, the frame looks good, the appliances are all there and don't look damaged. Kids have partied in it so the interior's trashed and the windows are busted out. If the stars align and I take that on, I'll probably go with foam and glass again. I would probably go with Klegecell or Divinycell for the foam and a conventional (styrene based) composite layup and prefab a bunch of flat panels.

recycler
Explorer
Explorer
U.P. BLDR wrote:
recycler wrote:
interesting idea for air flow thru your camper got me to thinking about cold air inlet for my furance...i have to decide on that soon about ready to glass outside of it and not real sure of my skills in that area

Most RV furnaces pull their combustion air from outside around the furnace exhaust vent. Even the old 70's era truck camper furnace I put in my Sunline draws it's combustion air from outside.


i have a newer atwood furnance so it has the forced air from outside... the cold air inlet is more for fresh air for me my lungs aren't what they used to be
1999 F550 truck conversion

U_P__BLDR
Explorer
Explorer
recycler wrote:
interesting idea for air flow thru your camper got me to thinking about cold air inlet for my furance...i have to decide on that soon about ready to glass outside of it and not real sure of my skills in that area

Most RV furnaces pull their combustion air from outside around the furnace exhaust vent. Even the old 70's era truck camper furnace I put in my Sunline draws it's combustion air from outside.
1981 Sunline 17 1/2SB - under construction
2003 Toyota Tundra SR5 TRD 4x4 4.7lt

recycler
Explorer
Explorer
DeadeyeLefty wrote:
With the shell on hold for the time being, its time to turn my focus to other parts of the build. I won't be installing an air conditioner, except maybe one of the portable units if I'm going to have shore power available. I will be using the trailer when temps get into the 30s (high 80s) so it would be nice to have a way to get some airflow going, given that I'm building a giant insulated beer cooler :B

I have a roof exhaust vent going in on a curb to minimize the chance for leaks (still needs to be etched and painted):


For the air intake, I have a two speed squirrel cage fan salvaged from a projection TV I was scrapping out. It's rated for 10V and moves a lot of CFMs.


I'll connect it to a rheostat in the cabin to control the speed and duct cool air into it from under the trailer (wheel well) via 3" ABS. I formed a diffuser out of foam and glassed it. It needs a vane inside to divert the air down to the end and it will get some sort of grille (varnished cherry lovers maybe ?) to finish it off. The whole works will be concealed in the cabinetry with the outlet grille just below the counter top. Conversely, if I install it on the curb side instead of the street side, it will go into the dinette seat box and dump out just below the seat cushion. Either way it's concealed and provides plenty of air circulation.


interesting idea for air flow thru your camper got me to thinking about cold air inlet for my furance...i have to decide on that soon about ready to glass outside of it and not real sure of my skills in that area
1999 F550 truck conversion

DeadeyeLefty
Explorer
Explorer
With the shell on hold for the time being, its time to turn my focus to other parts of the build. I won't be installing an air conditioner, except maybe one of the portable units if I'm going to have shore power available. I will be using the trailer when temps get into the 30s (high 80s) so it would be nice to have a way to get some airflow going, given that I'm building a giant insulated beer cooler :B

I have a roof exhaust vent going in on a curb to minimize the chance for leaks (still needs to be etched and painted):


For the air intake, I have a two speed squirrel cage fan salvaged from a projection TV I was scrapping out. It's rated for 10V and moves a lot of CFMs.


I'll connect it to a rheostat in the cabin to control the speed and duct cool air into it from under the trailer (wheel well) via 3" ABS. I formed a diffuser out of foam and glassed it. It needs a vane inside to divert the air down to the end and it will get some sort of grille (varnished cherry lovers maybe ?) to finish it off. The whole works will be concealed in the cabinetry with the outlet grille just below the counter top. Conversely, if I install it on the curb side instead of the street side, it will go into the dinette seat box and dump out just below the seat cushion. Either way it's concealed and provides plenty of air circulation.

DeadeyeLefty
Explorer
Explorer
Thx for the kind words westend. I can't complain - glassing has made me a living doing something I enjoy. To me, that's what 'wealth' means.

Funny you mention electric drive...I have a few old outboards I bought specifically with that in mind. My thought was to cut through the lower right at the cav plate and mount that to the underside of a purpose-built hull. The shaft would be cut down and turned to accept a double pulley. One could simply make a coupler and mount the motor right on top of the shaft, but the gear reduction would likely see the prop turning too slow. Pulleys and belts would let you play with the ratio till you get it right.
Most of the golf cart motors I've seen use the differential as a faceplate, so you'd have to fab one (probably out of aluminum plate) to support the bearing.

This power arrangement will tuck completely under a standard 16" high seatbox as well.

Too many projects, not enough time !

I did get the rear panel hung back on the trailer to keep the rain out, but that's it for the build for a while. The weight seemed to be about double with the glass on.

westend
Explorer
Explorer
Fresh prawns, oh yeah, I'm aboard for that!
I think you're one of those guys, Lefty, that is beyond good at glassing. The chemical nature of things you mentioned is where I see the "art" and "magic" of the process.
A single lunger 10 hp. would be a grand idea for an offshore rig but I was leaning more to an electric setup for lakes and rivers close by. I live between two excellent lakes (1/4-1/2 mi. in either direction) or can choose from any of the other 9,998 we're supposed to have in this State. A guy stopped by last week, wishing to look at the lifeboat, seems he has a bit of boat building and repair experience. He mentioned that I could buy the whole electric propulsion unit for $5K from Electric Boat Co.. That is about $4K more than I'd like to spend, lol. I was thinking more along the lines of a slavaged golf cart drive train and some batteries.
'03 F-250 4x4 CC
'71 Starcraft Wanderstar -- The Cowboy/Hilton

MaxThrust
Explorer
Explorer
DeadeyeLefty wrote:
Truth be told, fresh prawns are an incentive to get me to do pretty much anything, lol.


Ditto!!!
Mike :C
My computer beat me at chess, but I beat it at kick boxing!

DeadeyeLefty
Explorer
Explorer
Dunno about magic or art but it certainly can be messy!
To be honest, it's just a bit about knowing what needs to happen chemically and the rest is just practice (preferably on someone else's dime !!)
As long as you can keep the final shape in your mind, you can shape it out of whatever you have at hand and slap some glass over it to make it permanent. Kinda like the mashed potato mountain from Close Encounters, I guess (snicker).

I really enjoy doing layup - there's something about being able to form anything one's mind can come up with and to be able to make it structurally robust using a combination of materials that, on their own, are essentially useless.

That lifeboat is exactly the kind of thing I'm into. I would probably either restore it or put put in something like a one-lunger 10hp shaft drive and a center console. Maybe give it a bimini and call it a captain's gig...
For its age it looks like it's in REALLY good shape. I could see either restoring it to original or adding a skeg and a 10hp one-lunger shaft drive in a center console. Old lifeboats make great rough-water fishing skiffs and, so long as you keep the weight down, they'll bob like a cork instead of stuffing into waves. It's a rough motion sometimes but the skipper will give up long before the boat ever does!

Were I nearby, I probably would make you an offer, but not until I got some of these other projects cleared out !

I picked up that rowboat so I could get some exercise after knee surgery and set some prawn and crab traps at the same time. Fresh prawns are a great incentive to get out and row every evening. Truth be told, fresh prawns are an incentive to get me to do pretty much anything, lol.

westend
Explorer
Explorer
Nice work, my hat's off to anyone that is skillful with fiberglassing or gelcoat. It's part art, part magic, and mostly messy, IMO.;)

When you're done with that rowboat and camper, I have another project for 'ya:



This is the SS POS, a 1934 steel lifeboat that now resides at the back end of my lot. I am not in a hurry to get going on it since it hasn't rusted in the last 75 yrs. and should hold together for a few more.
'03 F-250 4x4 CC
'71 Starcraft Wanderstar -- The Cowboy/Hilton

DeadeyeLefty
Explorer
Explorer
Ask and ye shall receive, lol.

More glassing yesterday...I flipped the panel in the previous pics so I could glass the inside face. Now a bit of fairing (I've already got compound on the other side) and it will be ready to hang back onto the form:


The stay is there to maintain the distance between the two edges so the glass isn't under any strain when it's offered up. It did cause the flat side (on the table) to curl a bit, so I grabbed a couple hunks of fir that are destined to become a bar top when I get to that item on the honey-do list:

The rowboat you see in the background is the next project. I've got to get some more hours in to buy a bunch more glassing stuff to continue, so Project Glacier will likely live up to its name for a couple more weeks. It will give me a chance to get the purpleheart deck onto that boat and get the gunwhales and new oarlocks on (fir and polished bronze). I may also start moving some of the appliances into the trailer and start laying out the final floorplan (with pics of course !)
This shot shows how clear the glass cures (West 105/205 and 6 oz cloth). You can see why it's so popular for bright-finished wooden boats.

MaxThrust
Explorer
Explorer
Hey, isn't it about time for some more updates???
Mike :C
My computer beat me at chess, but I beat it at kick boxing!

DeadeyeLefty
Explorer
Explorer
The other reasons for going with epoxy are it's resistance to just about everything and...I can pretty much guarantee I'll never have a leaking roof !
;^)
It will give the trailer a 'hard candy shell' that laughs at stone chips and road spray.

Thx for those links - that truck looks great in the pics.
I wonder how it looks close up ?

westend
Explorer
Explorer
DeadeyeLefty wrote:


Westend, as far as the exterior finish goes I'm still leaning toward the garage floor epoxy in gray for the body and white for the roof. I'll probably get a sign maker buddy to do a vinyl decal package but I haven't thought much beyond that.
I'm curious about the stain on the aluminum: obviously it wouldn't penetrate, but it seems to me it would just rub off. Did you have any problems getting the base coat to stay put ?

Epoxy is always a good choice, IMO, excellent bond strength.
For the faux finish, the primer and base coat is applied and allowed to dry. The oil based gel stain is applied and raked and/or brushed and allowed to dry. Usually, a protective clearcoat is applied as a final finish. I have done doors and walls without a final clearcoat and haven't seen problems with adhesion or deterioration of the finish. On a vehicle, it is a usual final process to apply a clear coat.

Wood faux finish on car

Foam finish on camper exterior
'03 F-250 4x4 CC
'71 Starcraft Wanderstar -- The Cowboy/Hilton

DeadeyeLefty
Explorer
Explorer
Thx recycler. I've had a few ideas for this build that aren't practical or would take too long to incorporate. Combined with a couple things I would do differently next time, I think I'm gonna have to build another when this one's done !
A gullwing door would be a piece of cake in glassed foam and would be light enough that the hardware wouldn't need to be industrial grade. My door weighs maybe 5-10 lbs and I could do a gullwing for the same weight. One would need to work out how to seal it and you'd probably want to use it to support some sort of awning...but it would certainly be certainly doable. There's a teardrop-esque design floating around the web I like, it's called the Roswell.

Westend, as far as the exterior finish goes I'm still leaning toward the garage floor epoxy in gray for the body and white for the roof. I'll probably get a sign maker buddy to do a vinyl decal package but I haven't thought much beyond that.
I'm curious about the stain on the aluminum: obviously it wouldn't penetrate, but it seems to me it would just rub off. Did you have any problems getting the base coat to stay put ?

I hear ya on the trucks. If memory serves, that truck's weight and underachieving brakes would have made a bigger engine a deathtrap anyway, lol.