This 3D printer allows makers to create metal parts without breaking the bank.
Nicolai Valenti created an affordable PLA metal 3D printer that allows makers to prototype metal parts. The machine relies on SS316L, copper, aluminum, and titanium powders, heated via a Nichia laser array beaming 405 nm light to produce metal parts. Overall, this is Valenti’s fourth and final metal 3D printer prototype, and it utilizes three NEMA 17 stepper motors with GT2 belts.
A 150-year-old theory about an otherworldly shape proposed by Lord Kelvin, one of history’s greatest physicists, has finally been put to the test — and his conjecture is now in doubt.
In 1871, William Thomson, more commonly known as Lord Kelvin — a famed British physicist who made key contributions to electromagnetic theory, thermodynamics, navigation and the absolute temperature system that bears his name — proposed a theory about a strange hypothetical shape, which he called an isotropic helicoid.
Prior to 1970, bulletproof vests were pretty iffy, with a history extending as far as the 1500s when there were attempts to make metal armor that was bulletproof. By the 20th century there was ballistic nylon, but it took kevlar to produce garments with real protection against projectile impact. Now a 3D printed nanomaterial might replace kevlar.
A group of scientists have published a paper that interconnected tetrakaidecahedrons made up of carbon struts that are arranged via two-photon lithography.
The Ultembase from Energetic 3D is the first powder coated PEI glass print surface I’m aware of, and promises several advantages over alternatives. Let’s test it out!
Returning to the foundry, I cast an aluminum wall hook. The design of the hook had to take into consideration how it would be cast. Every face had to taper perfectly for the pattern to actually release from the mold!
I’ve wanted to build a top shelf 3D printer kit for a while, and now I present part 4 of the Rat Rig V-core 3 series. In this video we try out input shaping using an accelerometer, which was my primary motivation for building this machine. It didn’t disappoint and in my opinion represents a major step forward for 3D printing.
In this fourth episode, we also cover questions and comments from part 3, basic calibration, pressure advance and high speed test prints.
I saw an awesome video by Hand Tool Rescue of a 100+ year old fractal vise being restored and just had to have one. CAD and 3D printing makes this possible and if you own a 3D printer you can have one too. You won’t believe how awesome this vise design is, it can morph to clamp almost any shape!
That’s probably still less time than you’ll spend waiting in line at an amusement park.
Tired of spending endless hours waiting in line to ride the latest and greatest roller coaster at your local amusement park? Why not invest all that time designing and 3D printing a roller coaster of your very own like YouTube’s 3d_coasters has?
As detailed in a video recently shared on their YouTube channel, a lot of work went into creating the NoLimits 2 coaster—far more than you’d expect. Just designing the layout of the track and the coaster itself, which are assembled from 2,983 individual parts, took over 600 hours using a piece of 3D modelling software called. Fusion 360. As pieces were finalized, they could be 3D printed while the rest of the modelling was being completed, which required over 800 hours of 3D printing and seven rolls of filament to complete.
Trimmer Line from the hardware store resembles 3D printing filament very closely and is often made from tough Nylon. Could this be an option for 3D printing filament? Let me show you if it and how it works and how strong 3D prints from Trimmer Line are!
IMPORTANT: Please make sure to only 3D print trimmer line in well-ventilated areas where you’re not constantly present. As some of you pointed out, some materials that are not primarily intended for 3D printing can release TOXIC FUMES when heated! https://www.instructables.com/Is-3D-P…
Test and diagnose your USB cables with this Arduino-based device.
While USB (Universal Serial Bus) connections are in many ways a huge improvement over the parallel, serial, and specialized ports of old, “universal” is still a bit of an overstatement. With a variety of physical form factors and ever-evolving standards, there’s more to making a proper connection than simply plugging any cable in.
Making things even more complicated, just looking at a USB cable’s form factor isn’t always enough to tell whether it will properly power and transfer data to and from your device. Perhaps a particular Micro cable is only for charging, leaving out the data pins, and thus leaving you frustrated as to why you can’t program a certain board. Or maybe a cable is broken internally. To get to the bottom of these potential connection issues, TechKiwiGadgets has come up with the Arduino Cable Tracer.
More info is available in TechKiwiGadget’s project write-up, along with a wiring chart and Arduino code.