Instructables

Turn your Bed into a Bike Trailer

Picture of Turn your Bed into a Bike Trailer
This is the quickest bike trailer I've ever made.

I like it because it's light and has plenty of space to lash
) a new mattress
) an old mattress
) armloads of donuts to deliver to hungry clueless harvard students
) all the computers you can find
) monitors
) old lab supplies to fortify your home

it's also a rolling music video stage. If you put Will Bosworth ( howtern) on it, and he starts singing, film that.

That guy's a rockstar, and you can't miss him singing.
 
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Step 1: Construction

So this is going to become a bedframe with wheels.
I'm using bike wheels because they grow on trees around here.
I learned that bike wheels need bike forks.

Fortunately, bike forks also grow on trees.

I'm gonna weld this all together. You can also drill holes and use a pair of bolts.

I got the mattress frame from a dumpster labeled "Metal only"
At first I thought, "Should I be wearing more hairspray?"

When I popped over the edge of the dumpster, I realized what was meant: All the metal I've been looking for.
Pipes, angle iron, tubing, solid metal, - beds -
so I grabbed two bedframes like this and biked back to my favorite machine shop.

Step 2: Fashion

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First, put on "Oh! The Grandeur!" by Andrew Bird.

I found out that waring a hankerchief on my head under a welding helmet is the best thing ever. Warm and comfy and cozy, it feels way better than the sweatband in the helmet, and makes everything fit perfectly.

Weld on!

Step 3: On Welding

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Also, welding magnets are a fabulous idea. They exist to hold your metal at a right angle, and right where you want it.
Fortunately, all the metal I weld with this welder is ferromagnetic, so these are perfect every time.

I tie the fork to the chair to hold it at the right height.

The chair is also the perfect place to sit while I weld.

Step 4: Add Tires

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From some bike tree dumpster.

Step 5: Speaking of Tongues

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And then lash a bar on the front, so you can hitch up to a bike!
markpopple4 years ago
I have that exact futon/sofabed frame. Anyone who wants to take it off my hands for this project ( or to use it as a bed even as I have all the pieces) is welcome to it gratis. markpopple@gmail.com. I live in the 510 berkeley to be precise
d_ekrem5 years ago
question for you... as soon as i find a free futon frame on craigslist i'm going to try making one of these trailers. is a 110 amp arc welder going to suffice for this project (i've NEVER welded anything before, you've inspired me on this one, i'm going to haul a kayak with it). is AC or DC preffered, or does it not generally matter? is there a general all-purpose rod that'll work with most metals? thanks!!
stasterisk (author)  d_ekrem5 years ago
you can make a bike trailer out of just about any scrap metal, or scrap anything.

see this, for example: http://www.instructables.com/id/Bike-Trailer-and-Cargo-Bike/

it's steel, and your welder will have instructions on whether AC or DC is used for steel. 110 amps is a helluva welder, and might be a bit much - be careful not to burn through the thin wall tubing of the futon frame.
kerns5 years ago
rrrRRrrRR! Hawwt welding GODDESS!
awesome! there are plenty of metal bed frames and bike parts in my part of the world too. I'll give this a try. :)
Where do you find old bikes/parts to build with?
stasterisk (author)  Handsome-Ryan6 years ago
My favorite machine shop shares a parking lot with a local bike shop's dumpster. So our stock includes more fancy bike parts than anyone knows what to do with.

This is an example of what that kind of thing inspires.

There are lots of bike dumpsters all over the city for a constant supply. I also got some from a university abandoned-bike auction.
Patrik6 years ago
So, how fast *does* it go? ;)

Good to see you posting again, after your little - ahem - incident with law enfarcement...
stasterisk (author)  Patrik6 years ago
It goes as fast as you can.
Patrik Patrik6 years ago
Oh - and cool trailer, by the way! Are you concerned at all about the fact that all the weight will be resting on those two sideways welds? Seems like that would cause a lot of shear forces. I don't have any experience with welding, so I don't know how strong such welds would be. If you're going to use this as a performance platform, I could imagine someone jumping up and down on it in the heat of the moment, so it would have to be rated for more than just "several hundred pounds". Maybe add a short diagonal brace between the short end of the bed frame and the "shoulder" of the bike fork?
Add some plywood and a band on top, and have a mobile concert!
jolshefsky6 years ago
Great idea for using big scrap like the bed frame. It looks rock-solid and good for several hundred pounds.
interesting but it looks like it could get topheavy and i would also put a brace betweer the tire forks but great way to salvage junk to treasure! (i did the same thing on my trailer thats on here) and you can ride this thing around coledge? it must be more flat there cuz in georgia i can barely pull the dog up hills!