Custom Cycling Camper Continues Car-Free

June 18, 2022 by Matthew Carlson 36 Comments

If you own a camper or RV, you might think twice when taking it out after giving gasoline prices a look. Towing all that extra weight and wind drag along can really eat into your fuel efficiency. [Drew] decided to keep the camper but take gasoline out of the equation by building a teardrop trailer he pulls behind his bike.

It’s a relatively simple idea. A 1″ by 1″ steel tube frame makes up the bottom, which [Drew] welded together. On top of that, plywood walls were built up over a plywood base. The wheels were stolen from an older bicycle and the top was made with many bending techniques using a portable fabric steamer for clothing. [Drew] found used doors and windows right in his backyard, which helped lower the cost. The trailer is insulated with sheet foam because it’s cheap and easy to cut.

In addition to the creativity, there’s a big focus on waterproofing and durability throughout this build. [Drew] applied caulk to the threads of every screw to prevent water from getting in and rotting the plywood. Canvas was used instead of fiberglass to save cost as it provides a fairly high level of protection from rain when finished properly. Cheap LEDs and a USB battery pack created stylish and functional lighting inside.

Overall, we think it turned out quite well, and we would love to bike somewhere and camp out in our own teardrop trailer. It’s a gorgeous example of welding, woodworking, and some plain ingenuity in the face of adversity. We’ve seen solar-powered trailers for e-bikes and campers for custom motorcycles before, and we think [Drew]’s trailer would fit right in. Video after the break.

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Bike On Over To The Campground

March 20, 2022 by Bryan Cockfield 9 Comments

Like many of us, [Paul] enjoys occasionally hitching up his tow-behind camper and heading out to the wilderness to get away from it all at his favorite campsite. Unlike the vast majority of those who share his passion for the outdoors, though, [Paul] is hitching his camper up to a bicycle. Both the camper and the bike are custom built from the ground up, and this video shows us a little more details on [Paul]’s preferred mode of transportation.

While he is known for building custom vehicles of one sort or another, this latest one is a more traditional bicycle frame that he has modified only slightly to fit a recumbent-style seat and a small gas-powered motor. Even though the motor is decades old, it started right up and gives the power needed to pull the custom camper. [Paul] builds one-person campers like this out of corrugated plastic for durability and light weight, and this one is specifically designed for his size and sleeping style. It includes everything needed for a night under the stars, too, including a stove, storage compartments, and a few windows.

With the bike and camper combined weighing in at just over 200 pounds, the motor can be used as a pedal-assist device thanks to the clever engineering behind a front-wheel-drive pedal system on this bike. With all of that custom fabrication, [Paul] is free to head out to the wilderness without all the encumbrances (and high price) of traditional motor vehicle-based camping. For those curious about some of [Paul]’s other vehicle creations, take a look at this tiny speedboat for one.

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A Bike Trailer For Any Expedition

October 10, 2021 by Jenny List 30 Comments

One of the greatest challenges for a hardware hacker relying only on a bicycle for transport lies in the regular need to carry more than can be slung from the handlebars or on the luggage rack of your trusty steed. One of our favourite YouTube creators in our sphere, [Laura Kampf], has addressed this problem with a trailer for her electric bike made from a pair of second-hand wheelbarrows. She uses their buckets to make a clamshell box, and their wheels alongside a custom steel chassis to make the rest of the trailer.

As always with Laura’s work it’s a delight to watch, with some careful use of the cutting wheel to install hinges and vents in the upper bucket. Finishing touches are a chequer plate top for the trailer and a spare wheel mounted on the back for that extra-rugged look. Experience with wheelbarrow wheels suggests to us that the slightly more expensive ones with ball bearings are worth the investment over the plastic ones, but either way this is a bike trailer that means business.

We don’t see as many bike trailers as we’d like here at Hackaday, and those few we have are old enough to have succumbed to link-rot. Perhaps this project might tempt a few people to try their hand?

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Mobile Sauna For On-The-Go Relaxation

July 30, 2021 by Bryan Cockfield 6 Comments

While it might be nice to imagine owning a cabin in the woods to escape from society, complete with an outdoor sauna to take in the scenic views of nature, most of us will be satisfied with the occasional vacation to a cabin like that. For those trips, or even for long-term camping trips, [Schitzu] and a group of friends thought it would be nice to be able to ensure access to a sauna. For that, they created this mobile, timber-framed sauna that he can tow behind his car.

The sauna is built out of a combination of spruce and Douglas fir, two types of lumber with weather-resistant properties. For an additional layer of protection, the frame was varnished after assembly. The walls are filled with baked cork for insulation, and heat is provided by a small wood-fired oven placed in the corner of the sauna with a stove pipe plumbed through the roof. Performance of the sauna shows good design too, as it can heat up quickly and performs well in all of the tests so far. The final touch on the mobile sauna was to finish the roof with some solar panels in order to gather some energy for long-term camping trips and also to ensure that the roof was protected from rain and weather.

The sauna is designed for two adults to sit in, but it will also accommodate a single person to lay down and sleep (presumably when not using it as a sauna), so the entire trailer actually makes a fairly capable mobile camper too. With the addition of a panoramic window, anyone can take in the sights as well as someone with their own permanently-located sauna could, which is a win in all of our books. If you’re looking for a mobile sauna that’s a little more discrete though, be sure to check out this one which is built in the back of a white panel van.

Message In A Bottle: Bicycle Trailer On A Mission

June 19, 2020 by Sven Gregori 18 Comments

Graffiti is a controversial subject, and whether you see it as art or vandalism usually depends where and how you come across it. From the scribbled tag on a house wall, to highly sophisticated murals, they tend to have one thing in common though: making a statement — whether that’s political, showing appreciation, or a simple “I was here”. [Sagarrabanana] had his own statement to make, but chose a less permanent way to express himself with his type of graffiti.

Unhappy about the lack of dedicated cycle lanes in his area, he built an automatic, Arduino-controlled water dispensing bicycle trailer, writing his message on every street he rides on. The build is documented in a video, and shown in action in another one — which are both in Spanish (and also embedded after the break), but pictures are worth their thousand words in any language.

Inspired by persistence of vision (POV), where moving LEDs sync up their blinking to give the illusion of a static image, [Sagarrabanana] transformed the concept to water on a road using an array of solenoids attached to a water tank. Each solenoid is controlled by a relay, and a predefined font determines when to switch each relay — the same way pixels on a display would be set on or off, except small amounts of water are squirted out as the bicycle is moving along. The message itself is received via serial Bluetooth module, and can be easily modified for example from a phone. To adjust the water dispensing to the cycling speed, the whole system is synced to a magnetic switch mounted to one of the trailer’s wheels, so you could theoretically take it also with you on a run.

Time will tell if [Sagarrabanana]’s mission has the success he hopes for, but there’s no doubt the trailer will attract attention anywhere he goes. Well, we wish him all the best to get the message through without requiring a too drastic alternative as writing medium. Although, we’ve seen a graffiti robot that uses chalk spray in the past, so there’s certainly room for a not-too-permanent upgrade if needed.

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Electric Dump Truck Tricycle Is No Toy

August 13, 2019 by Bryan Cockfield 31 Comments

There are some utility bicycles on the market, some with electric motors to help carry a good bit of cargo. If you really need to haul more weight than a typical grocery-getter like this, you’ll want to look into a tricycle for higher capacity loads. Nothing you’ll find will match this monstrous electric tricycle hand-built by [AtomicZombie] out of junkyard parts, though. It’s a mule.

Since [AtomicZombie] sourced most of the underpinnings of this build from the junkyard, it’s based on an old motorcycle frame combined with the differential from a pickup truck, with a self-welded frame. He’s using an electric motor and a fleet of lead acid batteries for the build (since weight is no concern) and is using a gear reduction large enough to allow him to haul logs and dirt with ease (and dump them with the built in dump-truck bed), and even pull tree stumps from the ground, all without taxing the motor.

[AtomicZombie] documented every step of the build along the way, and it’s worth checking out. He uses it as a farm tractor on his homestead, and it is even equipped with a tow hitch to move various pieces of equipment around. Unlike a similar three-wheeled electric contraption from a while back, though, this one almost certainly isn’t street legal, but it’s still a blast!

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Scooter Hauls Kids With A Little Heavy Metal

September 7, 2018 by Tom Nardi 8 Comments

Where there’s a will, there’s a way. Similarly, where there’s a paying customer and a well stocked metalworking shop, there will also be a way. That’s about all the backstory you need to understand this latest creation from [Richard Day] of 42Fab. A customer asked him to build something that didn’t exist, and in a few hours he not only fabricated it from scratch but documented the whole thing for our viewing pleasure.

The object in question is a mount that would allow the customer to pull a “Burley Bee” kid trailer behind their electric scooter. The trailer is only meant for a bicycle, but the expected stresses of getting pulled around by a scooter seemed similar enough that [Richard] figured it should work. Especially since the ride height of the scooter lined up almost perfectly with the trailer’s tongue. The trick is, he wanted to avoid making permanent changes to either the scooter or the trailer.

On the scooter side, [Richard] came up with a clamp arrangement that would squeeze onto the frame. This gave him plenty of strength, without having to put any holes in the scooter. To create the clamp he took two pieces of 1/4″ x 2″ steel flat bar and welded 5/16″ nuts to them. By drilling the threads out of outer nuts they act as bushings, so cranking down on the bolts draws the two pieces together. To simplify the alignment, he welded the nuts to the bars while the bolts were threaded in, so he knew everything would be in place.

For the trailer side, he took another piece of flat steel and turned it into a “U” shape by cutting almost all the way through the back of it and then folding it over in his vice. A bead of metal was then laid in the cut with the welder to strengthen it back up. [Richard] used this opportunity to demonstrate the difference between pushing and pulling the torch while welding, which is an interesting tip to file away. A hole drilled through the two sides and a little grinding, and it’s ready to mount.

Between the two fabricated components is some flat stock welded at an eyed up angle. As [Richard] says in the video, the nice thing about these one-off projects is that you can basically design on the fly. Plus you can always use a hammer to make some final adjustments.

While his isn’t the first bike trailer hack we’ve seen here at Hackaday, it would be fair to say it’s something of a rarity around these parts. Usually we get word of somewhat larger bits of kit getting dragged around.

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