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Prusa i2 Current Build – 2014

Prusa i2 Current Build – 2014

I may get around to documenting this printer further, however much has been already written on the Internet about the Prusa Mendel i2 Printer so I will focus on how I changed the original design. Extruder For the extruder, I have done away with the traditional gearing system and put a hobbed pulley directly onto the shaft of a NEMA17 stepper motor. A spring loaded system presses a 308ZZ bearing against the filament and provides pressure...

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Miniature Guitar Amplifier – New Power Amp Chip

Miniature Guitar Amplifier – New Power Amp Chip

Not much has changed from my previous build, I got occupied for the last week or so with building a new desk while waiting for some JRC386D chips to arrive. I also configured a smaller breadboard host to reduce the necessary desk space required to test my ideas out. Initial tests are showing that the JRC386D IC amplifies far cleaner than the LM386N-1 IC. It can be driven by my previous op amp and FET buffers at full volume without...

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Ikea Hacking – Kallax and Linnmon Mega Desk

Ikea Hacking – Kallax and Linnmon Mega Desk

As per my long post the other day, I’ve been rebuilding my workspace with some of the new Ikea product lines. The core of it is a nice storage unit to keep everything organized (if such a thing is possible for me) and single large desk unit that is multi-functional. This post details where I’ve deviated from the intended Ikea assemblies and in particular details an excellent way to make an inexpensive monitor shelf with blind...

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Storage, Workspace and IKEA Hacking

I work from home exclusively at a computer – I do technical support for a hosting and vCloud service provider. This entails spending a lot of time in my work area with random blocks of downtime where I cannot stray too far from my PC, or at least my laptop. There are many tools that I have to perform my job on my iPhone while mobile, but they’re rather difficult to utilize while actually talking on said phone – I...

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Miniature Guitar Amplifier – Rough Two Channel Design

Miniature Guitar Amplifier – Rough Two Channel Design

A few days ago I was lamenting, in a rambling sort of way, about being unable to get the distortion channel working on my test design. After redesigning and breadboarding the circuit many times I finally came across the core issue – I was configuring the op amp in a non-inverting format which was having unexpected results with the feedback loop. Once I realized my mistake I quickly whipped up a new version. Note that this is an...

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