3d printed

608 Articles

Building A 3D-Printed Strandbeest

January 16, 2025 by 16 Comments

The Strandbeest is a walking machine, a creation of the celebrated artist Theo Jansen. They can look intimidating in their complexity, but it’s quite possible to build your own. In fact, if you’ve got a 3D-printer, it can be remarkably straightforward, as [Maker 101] demonstrates.

The build relies on an Arduino Uno as the brains. It’s equipped with an L293D motor driver shield to run two DC gear motors which drive the walking assemblies. Power is courtesy of a 3-cell lithium-polymer battery. The chassis, legs, and joints are all 3D-printed, and rather attractively in complimentary colors, we might add.

Controlling this little Strandbeest is simple. [Maker 101] gave the Arduino an infrared sensor which can pick up signals from a simple IR remote control. It can be driven backwards and forwards or turned left and right. What’s more, it looks particularly elegant as it walks—a hallmark of a good Strandbeest design.

Design files are available online for the curious. We love a good Strandbeest build, and some can even be useful, too! Video after the break.
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Custom Case Turns Steam Deck Into Portable Workstation

January 12, 2025 by 7 Comments

DIY portable computing takes many forms, and doesn’t always require getting down and dirty with custom electronics. [Justinas Jakubovskis]’s Steam Deck Play and Work case demonstrates this with some really smart design features.

It’s primarily a carrying case for Valve’s Steam Deck portable PC gaming console, but the unit also acts as a fold-out workstation with keyboard. Add a wireless mouse to the mix and one can use it much like a mini laptop, or just pull the Steam Deck out and use it in the usual way.

The case is 3D printed and while the model isn’t free (links are in the video description) some of the design features are worth keeping in mind even if you’re not buying. The top clasp, for example, doubles as a cover for the buttons and exhaust vents and the kickstand at the rear covers the cooling intake when closed, and exposes it when deployed. We also really like the use of thick fabric tape lining the inside of the case to support and cushion the Steam Deck itself; it’s an effective and adjustable way to provide a soft place for something to sit.

The case is intended to fit a specific model of keyboard, in this case the Pebble Keys 2 K380s (also available as a combo with a mouse). But if you want to roll your own Steam Deck keyboard and aren’t afraid of some low-level work, check out the Keysheet. Or go deeper and get some guidance on modding the Steam Deck itself.

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Embedding Lenticular Lenses Into 3D Prints

January 11, 2025 by 11 Comments

A research project shows that it’s possible to create complex single-piece lenticular objects, or objects that have lenticular lenses built directly into them. The result is a thing whose appearance depends on the viewer’s viewpoint. The object in the image above, for example, is the same object from five different angles.

What’s really neat is that these colorful things have been 3D printed as single objects, no separate lenses or assembly required. Sure, it requires equipment that not just everyone has on their workbench, but we think a clever hacker could put the underlying principles to work all the same.

This lampshade (which was 3D printed as a single object) changes color and displays Good Day or Good Night depending on viewing angle.

The effect is essentially the same as what is sometimes seen in children’s toys and novelties — where a perceived image changes depending on the viewing angle. This principle has been used with a lenticular lens sheet to create a clever lenticular clock, but there’s no need to be limited by what lenses are available off the shelf. We’ve seen a custom 3D printed lenticular lens slapped onto a mobile device to create a 3D screen effect.

Coming back to the research, the objects researchers created go beyond what we’ve seen before in two important ways. First is in using software to aid in designing the object and it’s viewpoints (the plugin for Rhino 3D is available on GitHub), and the second is the scale of the effect. Each lens can be thought of as a pixel whose color depends on the viewing angle, and by 3D printing the lenses, one can fit quite a lot of them onto a surface with a high degree of accuracy.

To make these objects researchers used PolyJet 3D printing, which is essentially UV-cured resin combined with inkjet technology, and can create multi-color objects in a single pass. The lenses are printed clear with a gloss finish, the colors are embedded, and a final hit of sprayed varnish helps with light transmission. It sure beats placing hundreds of little lenses by hand.

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Atari 65XE In Laptop Form

January 5, 2025 by 4 Comments

For better or worse, Atari is no longer a household name in computing, but for a time in the 1980s, it was a huge mover in the industry. They not only produced PCs but also a huge number of video game consoles. Although they were a major contributor to the video game crash of the 1980s, they managed to limp along a few more years afterward and produce some interesting machines in the following years, even though they weren’t ultimately able to compete with Nintendo or Sega. One of those computers from that era was a PC-console hybrid of sorts called the Atari XE, and [Sideburn] was able to turn one into a laptop.

The retro laptop began life as an Arabic PAL version of the 65XE, the PC version of the ubiquitous 65-series computer. A large portion of the computer was reworked, including the removal of the power supply in favor of a rechargeable battery with a 6-hour life. Also among the list of scrapped components was the video and sound connectors as well as the RF modulator, which would have been common for displays at the time, but this laptop is getting a 1920×1080 LCD panel to replace all of that old hardware. A 1MB memory upgrade, new speakers and amp, a WiFi card, and an SD floppy card emulator round out the build.

The final part of the build is assembling it all into a custom 3D printed case, and the resulting laptop that [Sideburn] calls the XE Book is a faithful adaptation of this niche computer into what could have been a laptop we would have seen in the late 80s or early 90s similar to the Toshiba T3200SXC. It matches the original’s footprint and still uses all of the core components, so it’s not too difficult to imagine something like this having existed in the past.

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Camera Slider Uses Repositionable Rail To Do Rotational Moves

December 23, 2024 by 2 Comments

You can buy motorized camera sliders off-the-shelf, but they’re pretty costly. Alternatively, you can make one yourself, and it’s not even that hard if you’re kitted out with a 3D printer. [Creative 3D Printing] did just that with a nifty design that adds rotation into the mix. Check it out in the video below.

Why should a camera get all the fun? Try your phone.

The basic slider is built out of 3D-printed components and some good old aluminum extrusion. A small 12-volt motor trucks the camera cart back and forth using a leadscrew. It’s torquey enough and slow enough that there isn’t much need for more advanced control—the motor just does the job. There’s also a limit switch set up to trigger a neat auto-reverse function.

The neat part, though, is the rotational mechanism. A smooth steel rod is attached to the slider’s housing, which can be set up in a straight line or aligned diagonally if desired. In the latter case, it rotates the mounting on the camera cart via a crank, panning the camera as it moves along the slider’s trajectory.

It’s a mechanically sophisticated design and quite unlike most of the camera sliders we feature around these parts.

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Handheld Satellite Dish Is 3D Printed

December 23, 2024 by 11 Comments

Ham radio enthusiasts, people looking to borrow their neighbors’ WiFi, and those interested in decoding signals from things like weather satellites will often grab an old satellite TV antenna and repurpose it. Customers have been leaving these services for years, so they’re pretty widely available. But for handheld operation, these metal dishes can get quite cumbersome. A 3D-printed satellite dish like this one is lightweight and small enough to be held, enabling some interesting satellite tracking activities with just a few other parts needed.

Although we see his projects often, [saveitforparts] did not design this antenna, instead downloading the design from [t0nito] on Thingiverse. [saveitforparts] does know his way around a satellite antenna, though, so he is exactly the kind of person who would put something like this through its paces and use it for his own needs. There were a few hiccups with the print, but with all the 3D printed parts completed, the metal mesh added to the dish, and a correctly polarized helical antenna formed into the print to receive the signals, it was ready to point at the sky.

The results for the day of testing were incredibly promising. Compared to a second satellite antenna with an automatic tracker, the handheld 3D-printed version captured nearly all of the information sent from the satellite in orbit. [saveitforparts] plans to build a tracker for this small dish to improve it even further. He’s been able to find some satellite trackers from junked hardware in some unusual places as well. Antennas seem to be a ripe area for 3D printing.

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3D Printed Blaster Does It With Compliant Components

December 17, 2024 by 20 Comments

The ease of integrating bendy parts into designs is one of 3D printing’s strengths. A great example of this is [uhltimate]’s six-shot blaster which integrates several compliant mechanisms. The main blaster even prints in one piece, so there’s not even any assembly required.

The ergonomics are unconventional, but the design is pretty clever.

The blaster itself has three main parts: the trigger, the sear, and the striker. Each of them rely on compliant mechanisms in order to function. The user pulls back the trigger, which hooks into and pulls back the striker. When the trigger is pulled back far enough, the sear releases the striker. This zips forward and slams into a waiting projectile, sending it flying.

The other interesting part is the projectiles and magazine in which they sit. The magazine fits onto the front of the blaster and pulling the trigger allows the magazine to drop down, putting the next projectile into firing position. After the final round is fired, the empty magazine falls away. It’s a pretty clever design, even if the ergonomics are a little unusual and it relies on gravity in order to feed. Tilt it too far sideways or upside down, and it won’t load properly.

We’ve seen compliant mechanisms used for projectile firing before, but this design really raises the bar in the way it does more than just firing the striker.

3D printing allows rapid iteration of designs, which makes devices that rely on compliant mechanisms much easier to develop and fine-tune.

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