For most of the people, one wristwatch is enough (some people, after the cellphone, not even make use of wristwatches). I, on the other hand, have more than one (3 to be exact). Until some days ago, when they were not in use, on my wrist, I would leave them under my computer monitor. I had already thought about modeling some watch stand, but this intention was always low priority, considering my other projects. Thankfully, everthing changed when, recently, I came across a project on Thingverse that is exaclty what I always needed on this subject. As I only needed to print it, its priority was on the top. This post is about this “utility” (if I may call it this way).
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The Nema 17 stepper motors are some of the most used on a wide range of applications(3D Printers, Industrial machines, robotic arms, …).  There are lots of manufacturers and several different models of this kind of stepper (with different torque, step angle, voltage, current…). This post presents one way (the easiest and safe one) to control Nema 17 bipolar, 4 wires stepper motor.
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This will be the first of a series of two articles about peripheral automation (writing about home automation would take considerably more time). The aim here will be to explain how would be possible to control objects that could be automated through power line, anything that can be connected directly in the wall, that cutting the power and turning it on again would be enough to stop and start working again (for example a lampshade, a lamp, a fan, etc). There is still the possibility to automate infrared, a.k.a. remote control, controlled devices (tv, cable boxes, air conditioner, stereo systems, etc). All controlled by cellphone, from anywhere there is internet access.

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If you had to mark several points (for drilling them) on the edge of a MDF sheet (for exemple), you know that mark them precisely on the center of the edge can take some time (depending on the sheet thickness, it can be even complicated). Using this tool, the marking task turns into an easy one.

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Anyone that worked with soldering knows the process releases some fumes. Those fumes can be considered toxic containing, even traces of some heavy metals like lead. When you work with electronics as a professional, the ideal is to use a professional fume extractor. But these devices are a bit expensive to an amateur as me. I used to blow the fumes away but, after some time, I got tired of that and decided, in the best DIYer tradition, to make my own fume extractor.
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There are several ways to connect a remote control in a PC. I will not debate if it is right or wrong still using an infra red controller to control devices. The main objective of this post is to show that it is possible to install a remote control able to turn the PC ON (since an ATX or compatible power source is available).

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Until some time ago, when I was not using my headphone (the one I use on my computer) I let it hung on a hook attatched to the cabinet. But recently, I purchased a new headphone, with better sound quality and more beautiful. I decided that the hook was not a good companion for such good device. So, I started looking for some better holder that I could 3D print.
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Continuing from the previous post the idea is to improve the box’s visual to make it looks more like what was supposed to be its main functionality. In order to make that happens let’s add in the box’s cover a decal as cool as the standard arcade’s. Let’s also improve the long term quality adding an acrylic cover as a final touch in order to make it looks even better and protect the decal.

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