fiberglass

24 Articles

Camping On Unconventional Watercraft

May 28, 2026 by 25 Comments

The fjords of Norway are world famous for their beauty, but even though the word itself is Norwegian, there are fjords all over the world in areas that used to be covered in glaciers. One of these areas is the Pacific Northwest of North America, we herit’s actually possible to travel by boat from the Seattle area all the way into Alaska without going to the Pacific Ocean, and although plenty of people make this journey by boat, [Matt] is planning on doing this journey on a jet ski with a custom camper on the back.

Normally a jet ski wouldn’t be the ideal platform for a multi-day on-boat adventure because of their size, but [Matt] found perhaps the largest jet ski ever made and he got a deal on it since it had previously been wrecked. Once he repaired the hull damage, he cut a sheet of plywood in half and put a hinge in the middle so it can unfold over the top of the jet ski but fold it away when he’s traveling. With the basic concept in place he took it right out on the water to a campsite before finalizing the construction of the rest of the tent, including the installation of a door, a window, and some interior lighting.

During that first night, a storm cropped up and pushed the craft out to shore while [Matt] was sleeping, so after realizing, waking up, and motoring back to shore, he made sure to tie the craft to a rock to avoid similar situations before going back to sleep. But besides some motion sickness which prevented him from cooking inside his camper, the rest of the adventure went off without a hitch. Before taking it on the Inside Passage he has been thinking of a few improvements like outriggers to keep it from rocking while he sleeps. [Matt] is no stranger to unusual camper builds, though, we recently featured his other camper which is an electric car converted to explore abandoned railroads.

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DIY Shredder Creates Insulation

October 23, 2023 by 28 Comments

Plenty of us have experience with paper shredders, but there are all kinds of machines designed to completely destroy other materials as well, from metal and plastic, to entire cars. [Action BOX] built their own heavy-duty shredder capable of dismantling things like cell phones and other robust handheld objects, but after seeing what it would physically shred they decided to give it an actual job creating insulation for the attic space in their garage.

The shredder itself uses opposing metal plates arranged on sets of two cylinders, with each cylinder powered by it’s own large motor. In total, the entire system uses around 1.5 kW, so to make their green insulation project as green as possible they decided to power it with an equivalent amount of solar panels. For the insulation they’re using a year’s worth of boxes from various deliveries, and after a time-consuming process preparing the boxes for the shredder, shredding the strips of cardboard, and packaging it in garbage bags their efforts netted them enough to partially fill the space between four ceiling joists. Continue reading “DIY Shredder Creates Insulation” →

Fiberglass Mesh For Stronger 3D Prints

December 28, 2022 by 32 Comments

There are many clever ways to make stronger 3D prints, be they by the use of special slicing algorithms or by unusual filaments. [Brtv-z] has taken a more straightforward tack, by making glass-reinforced prints using painters fiberglass mesh tape.

It’s a laborious technique that involves stopping the print to manually place the fiberglass at each successive millimeter of print. The resulting test piece comes off the print bed festooned with fiberglass mesh, and once it’s been trimmed, he subjects it to some tests which you’ll see in the video below the break(Russian language, but there are subtitles).

The tests are fairly rough and ready involving a hammer (we winced at the hammering in a vice, but of course this piece isn’t forged steel!) and standing on a flat piece of print balanced between two blocks. As you’d expect, the reinforced piece appears the stronger, but these tests would benefit from a calibrated set-up to quantify the strength.

So if you’re of a mind to experiment, this certainly seems like an accessible if rather tedious way to make glass reinforced 3D prints. If you then want to characterize them, remember this can be done with a bit of farmyard engineering if you have nothing better.

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Recycled Speed Boat Beats The Barnacles Out Of Your Average Rebuild

June 3, 2022 by 33 Comments

There’s an old saying that says “Anything is possible with enough Time, Money, or Brains. Pick two.” For [Mr HỒ Thánh Chế], the choice was obvious: Time, and Brains. This is evident by the impressive DIY boat build shown in the video below the break.

[Mr HỒ] starts with an Isuzu marine diesel engine that was apparently found on the beach, covered in barnacles and keel worms (and who knows what else). A complete teardown reveals that the crankcase was miraculously spared the ravages of the sea, and somehow even the turbo survived. After a good cleaning and reassembly, the engine rumbles to life. What’s notable is that the entire engine project was done with only basic tools, save for a lathe. Even generally disposable parts such as the head gasket are re-used.

Moving onto the hull, half of an old damaged boat is used and a new top is built. Car seats out of a Toyota sit behind a steering column also from a car, while the deck is built from scratch out of square tubing, foam board, and fiberglass.

What we liked about the project isn’t so much the end result, it has some build quality issues and it looks like the steering is far too slow, but what project of our own hasn’t been knocked together for fun with some obvious flaws? In fact, that’s very often the epitome of the Hacker spirit- doing it quick, dirty, having fun, and iterating as we go. For that, our hat is off to [Mr HỒ].

If boat recycling puts the wind in your sails, check out this boat-turned-sauna project.

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3D Printing A Full Scale Fiberglass Speedboat

January 30, 2021 by 15 Comments

It’s an age-old problem. You draw up a nice 6.5-meter long motorboat and then discover the shape won’t allow for a fiberglass mold. What do you do? If you’re [Moi], you grab a few Kuka robots and 3D print it using thermoplastic with embedded glass fibers. A UV light cures the plastic and you wind up with printed fiberglass. That’s the story behind the MAMBO, a 3D printed powerboat.

Despite the color, the fiberglass isn’t blue out of the gate — the boat is painted. Still, it looks nice with lines inspired by [Sonny Levi]’s Arcidiavolo design from 1973. MAMBO stands for Motor Additive Manufacturing BOat. It has a dry weight of about 800 kg and is fitted with a cork floor, white leather seats, and an engine. We presume none of those things were 3D printed.

Although it wasn’t fiberglass, we’ve seen a 3D printed boat before. In particular, the University of Maine’s giant 22,000 square foot printer cranked one out. We’ve also seen boats printed in standard PLA filament, which then had fiberglass cloth and resin applied after printing. True that one was only RC, but there’s no reason the concept couldn’t be scaled up if you had the patience.

Friendly Fiberglassing: Can Hide Glue Replace Epoxy?

September 11, 2020 by 40 Comments

Hide glue has been around for thousands of years, and some of it is holding wood pieces three thousand years after application. It is made from animal protein, so vegetarians may want to stick to the petroleum-based adhesives. [Surjan Singh] wanted to see if its longevity made it a contender with modern epoxy by casting a couple of fiberglass car parts with the competing glues. In short, it doesn’t hold up in this situation, but it is not without merit.

Musical instrument makers and antique restorers still buy and use hide glue, but you would never expose it to heat or moisture. To its credit, hide glue doesn’t require a ventilator. All you need is boiling water and a popsicle stick, and you are in business. [Surjan] writes his findings like a narrative rather than steps, so his adventures are a delight to read. He found that a car part made with fiberglass and epoxy will withstand the weather better than the alternative because heat and humidity will soften hide glue. His Saab 96 isn’t the right application, but since it is nearly as strong as epoxy once set, you could make other fabric shapes, like a flannel nightstand or a lace coffee table, and you could shape them in the living room without toxifying yourself

No matter how you want to work with glues and substrates, Bil Herd has you covered, and here is an excellent tip for a cheap degassing setup.

Puttering Around In A Converted Golf Cart

April 16, 2020 by 16 Comments

Technically speaking, golf carts are already sports cars, they’re just not very sporty in themselves. When [rtkerth] went to trade in his old golf cart for a new one, he found that it would be more valuable to hang on to the old one and have a bit of fun with it. The result is retro-styled kart that would not look out of place at a micro car show.

Before getting to the really fun bits, he had to do a bit of prep work, such as relocating the six large batteries so that super cool stock seat can sit lower. Now the batteries are distributed throughout the vehicle, including one that’s been cleverly disguised as center console. Since the cart won’t be hitting the links anymore, there’s no need for a place to put clubs. Two of the batteries are now in the back, supported by a platform made from old bed frames.

We love the fiberglass fab work [rtkerth] did to the front and rear — it looks great, especially considering he’d never done it before. The rear is done more traditionally with a foam mold, but the front is fiberglassed directly over expanding foam insulation framed with cardboard. The local body shops refused to paint this baby roadster, so [rtkerth] did it himself before adding the killer touches — 1930s Brooklands-style windscreens and 1950s bullet mirrors that look great together.

Believe it or not, this isn’t the first amazing golf cart mod we’ve seen. Go see this baby DeLorean before you’re outta time.