Random Wire Antenna Uses No Wire

Ideally, if you are going to transmit, you want a properly-tuned resonant antenna. But, sometimes, it isn’t practical. [Ham Radio Rookie] knew about random wire antennas but didn’t want…

On Carbon Fiber Types And Their Carcinogenic Risks

Initially only seeing brief popular use as the filament in incandescent lighting, carbon fibers (CF) experienced a resurgence during the 20th century as part of composite materials that are lighter…

Could Carbon Fiber Be The New Asbestos?

Could carbon fiber inflict the same kind of damage on the human body as asbestos? That’s the question which [Nathan] found himself struggling with after taking a look at carbon fiber-reinforc…

Vroomba Gets Upgrades And A Spoiler

[Electrosync] is the creator and driver of the world’s fastest robotic vaccum cleaner, the Vroomba. It’s a heavily modified roomba capable of speeds of around 60 kph, well beyond the pe…

Carbon Fiber With 3D Printing

[Thomas Sanladerer] wanted to make 3D prints using carbon fiber and was surprised that it was fairly inexpensive and worked well, although he mentions that the process is a bit intense. You can lea…

Open Deck Is Your Window To Shortcuts

Once in a while, we see projects that could easily pass for commercial products. This is one of those projects: a (surprisingly) low-cost DIY macro pad from [Josh R] that was designed to be a cheap…

Carbon Fiber And Kevlar Make This Linear Actuator Fast And Strong

When it comes to the “build versus buy” question, “buy” almost always wins. The amount of time you have to put into building something is rarely justified, especially with a…

Building Forged Carbon Fiber Wings For Radio Control Cars

When it comes to building decent aerodynamic devices, you want to focus on getting your geometry accurate, and making sure your parts are strong enough to deal with the force they’re generati…

Why Is the Neutron Rocket Using Carbon Fiber Composite Instead of Stainless Steel?

SpaceX abandoned the use of carbon fibre composite and instead went for stainless steel in their Starship. So why is Rocket Lab sticking…

Electroplating Carbon Fibers Can Have Interesting Results

Typically, electroplating is used to put coatings of one metal upon another, often for reasons of corrosion protection or to reduce wear. However, other conductive materials can be electroplated, a…

Robot Arm Adds Freedom To 3D Printer

3D printers are an excellent tool to have on hand, largely because they can print other tools and parts rapidly without needing to have them machined or custom-ordered. 3D printers have dropped in …