Customize All the Fan Covers You Never Knew You Needed

Do you need a fancy fan cover with precisely specified attributes, but have no desire to design one from scratch? If you answered yes (or no) then [mightynozzle] has the answer. The Customizable Fan Grill Cover is a parametric design in OpenSCAD that allows adjusting the frame style, size, and grill pattern for any fan cover one may possibly need. [mightynozzle] also went the extra mile to provide a large number of pre-made STL files for a variety of designs in a wide range of sizes, so those who don’t want to fuss with customizing can simply download and print.

Normally Thingiverse would allow customizing this model’s attributes with their built-in Customizer, but the functionality and availability of that feature is spotty. Luckily it’s always an option to download the source and do the customizing directly in OpenSCAD. For those who may be intrigued but are not sure where to start, here’s a reminder that we covered how to make a thing with OpenSCAD that demonstrates the whole process.

Robotic Laser Keeps Cat Entertained While You Hack

Whether it’s our own cat or a neighbor’s, many of us have experienced the friendly feline keeping us company while we work, often contributing on the keyboard, sticking its head where our hands are for a closer look, or sitting on needed parts. So how to keep the crafty kitty busy elsewhere? This roboticized laser on a pan-tilt mechanism from the [circuit.io team] should do the trick.

The laser is a 650 nm laser diode mounted on a 3D printed pan-tilt system which they found on Thingiverse and modified for attaching the diode’s housing. It’s all pretty lightweight so two 9G Micro Servos do the grunt work just fine. The brain is an Arduino UNO running an open-source VarSpeedServo library for smooth movements. Also included are an HC-05 Bluetooth receiver and an Android app for controlling the laser from your phone. Set it to Autoplay or take a break and use the buttons to direct the laser yourself. See the video below for build instructions and of course their cat, [Pepper], looking like a Flamenco dancer chasing the light.

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3D Printed Wave Lamp Forecasts the Weather

While browsing Thingiverse, [Dushyant Ahuja] found a rather pleasing wave lamp, and since a mere lamp on its own would not quite be enough, he added a means by which his lamp could provide weather alerts by means of changing its color.

It’s fair to say that the wave lamp is not a print for the faint-hearted, and it took him 30 hours to complete. However, it has the interesting feature of not requiring a support or raft. There is also a base for the lamp designed to take a strip of addressable LEDs, and he modified its design to mount a small PCB containing an ESP8266 module and a level shifter chip. The code for the ESP relies on the OpenWeatherMap API, and changes the LED color based on the rainfall forecast.

Casting our minds back a decade, this lamp is reminiscent of the long-departed Nabaztag product, best described as an internet-connected plastic anthropomorphic rabbit that could keep you updated with information such as weather or stock market trends through lighting up and the movement of its ears. It was an overpriced idea tied into a proprietary online back end that was probably well before its time back in 2004. Perhaps repackaged for 2017 with a commodity microcontroller board Nabaztag has finally found its application.

There is a short video showing the color change and an LED animation, which we’ve put below the break.

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3D Printed Lamp Even Prints the Nuts and Bolts

The first print to come off a shiny new 3D printer is usually a toy widget of some sort that will forever sit at your desk without purpose. The alternative is a practical project that is custom and personal like this 3D Printed Articulating Lamp. [IgorF2] shares his design for this wall mounted device which was created using Fusion 360.

The complete design consists of eight parts which includes the arms, nuts, and bolts, as well as the wall mount, each of which can be printed individually. These come together to form a structure that can be attached to a wall or your work bench. Though [IgorF2] has provided arm pieces of length 100 mm, 140 mm and 200 mm, you can mix and match to create a much larger project. The files are available for download from Thingiverse for your making pleasure.

We think this can be a great basic structure for someone looking at custom wall mounted projects. The lamp mount can be easily supplemented by a Raspberry Pi and Camera holder if you feel like live streaming your bench. Alternatively, it may be customized to become a motion detecting lamp just for fun. We hope to see some good use come of it in the future.

A Crash Course in Thingiverse Customizer

OpenSCAD is a great way to create objects for 3D printing (or other purposes), especially if you are already used to programming. For things like front panels, it is great because you can easily make modifications and — if you wrote your code correctly–everything will just adjust itself to new positions.

However, what if you have a general-purpose piece of code, and you want people to have the ability to customize it? For example, consider this code:

$fn=100;
difference()
{
  cube([25,25,5]);
  translate([4,4,-1]) cylinder(h=7,r=2);
  translate([25-4,4,-1]) cylinder(h=7,r=2);
  translate([4,25-4,-1]) cylinder(h=7,r=2);
  translate([25-4,25-4,-1]) cylinder(h=7,r=2);
}

That creates the plate with four drill holes you see on the right.

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Stop Printing Air with a Filament Sensor

If you have had a 3D printer for awhile, you know the heartbreak of coming in to check on an 8-hour print only to find that in hour 7 you ran out of filament (or the filament broke) and your printer has been dutifully moving around for no reason. [Chuck Hellebuyck] knows and he decided to make a filament sensor he found on Thingiverse.

Finding a part on Thingiverse and printing it probably doesn’t warrant much attention. But if you watch the video, below, it is a good example of how things from Thingiverse don’t always meet your needs. The microswitch [Chuck] had was bigger than the design used. So he loaded the STL file into TinkerCAD and fixed it. He shows you exactly how he did it. That’s a useful skill because you never know when you’ll need to modify some part you’ve found on the Internet.

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Fully Printed CNC On an IKEA Table

It seems that many 3D printer owners just aren’t getting the same buzz they used to off their 3D printers, and are taking steps to procure heavier machines. And making them in their home laboratories with, you guessed it, their 3D printers.

Following the pattern, [Michael Reitter], designed a 3D printable CNC around a IKEA MALM table. In order to span the length of the table for his X axis, he came up with a very cool looking truss assembly. The linear rails rest on top of the truss, and a carriage with the Z axis rides on the assembly. The truss has enough space in the center of it to neatly house some of the wiring. The Y-xis mounts on the side of the table.

Overall the mechanical design looks pretty solid for what it is, with all the rails taking their moments in the right orientation. We also like the work-piece hold downs that slide along the edge of the table. It even has a vacuum attachment that comes in right at the milling bit.

We’re not certain how much plastic this build takes, but it looks to be a lot. Monetarily, it will probably weigh in at a bit more than some other options. As many in the 3D printing world are discovering, sometimes there’s no reason not to leverage more mature industrial processes for lower cost large gains in accuracy and strength. Though, it’s pretty clear that one of the design goals of this project was to see how much one can get away with just a 3D printer, and we certainly can’t deny the appealing aesthetic of this CNC.

Video of it in action after the break.

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