Author Archives: e8johan

Arduino

Posted on February 1, 2012 by e8johan

The Arduino is one of the flag ship products of the open hardware movement. A simple, microcontroller based motherboard with a well defined pin-out has rendered a whole forest of add-on boards called shields. But the Arduino movement is not … Continue reading →

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Running Steppers with Arduino

Posted on January 30, 2012 by e8johan

Steppers are fun, so are Arduino. Combining the two means double the fun. Here is a three minute video showing how it is done. The original blog post can be found here. A great thing about steppers is that they … Continue reading →

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Component Survey

Posted on January 27, 2012 by e8johan

Some components are found in every design, others are more rare. I’ve met designers claiming that digital constructions not including a PIC must be broken or trivial enough to implement using a single PIC. Still, there are some unique components … Continue reading →

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PLA and Temperatures

Posted on January 25, 2012 by e8johan

The eMaker Huxley 3D printer comes with a roll of while PLA from Faberdashery. A material that is new to me (I’ve only printed ABS before). PLA operates at a cooler temperature, but it requires a phase change (from solid … Continue reading →

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Extruder Issues

Posted on January 23, 2012 by e8johan

I thought that I ran into an extruder issue yesterday evening. The filament simply got stuck. However, looking at the filament shown in the picture, you can see that the plastic thickens just before (to the left of) the spot … Continue reading →

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Adafruit at the Arduino Factory

Posted on January 20, 2012 by e8johan

Adafruit, a great site with projects, forums, a blog and a shop, when to Italy an visited the Arduino factory. They made a video of their trip shown below.

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SOPA

Posted on January 18, 2012 by e8johan

Today, there will not be an in-depth article. Instead, I urge you to read up on SOPA/PIPA and make your voice heard.

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EMaker Huxley Wiring

Posted on January 16, 2012 by e8johan

I’ve finally found the time to wire up my EMaker Huxley 3D printer. Let me summarize the experience – trust the images, not the words, sometimes. At other times, the instructions explicitly states that the image is wrong. Generally, the … Continue reading →

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Lost Knowledge

Posted on January 13, 2012 by e8johan

Past computers did not come with quick start sheets or awkwardly worded manuals that barely scratched the surface of the product. They came with programming manuals, listings of memory maps, I/O registers, schematics and everything else the tinkering engineer might rely on. … Continue reading →

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Machine Code History

Posted on January 11, 2012 by e8johan

PageTable covers computing at the deepest possible level, without turning to physics. The site covers topics such as quirks of the first ever CPU, the Intel 4004, copying disks on the C64 – quickly, using branch delay slots, and much, much … Continue reading →

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