MCM Electronics Pro Elec Battery Test - Results

Posted by John on Jul 17, 2014

Per the graph above, we learned that while the Pro Elec battery had a lower initial voltage, it lasted longer. Great. That's simple. But there's more to it.

Because batteries are used in millions of different applications, there will be instances where having a higher initial power output will be better. We'll try to qualify some of these instances below.

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Product Reviews

MCM Electronics Pro Elec Battery Test - Setup and How To

Posted by John on Jul 16, 2014

Pro Elec Battery Test

Recently, we started carrying our own line of Pro-Elec batteries, and around the office we were wondering how they really stack up against the major brands.

We had the discharge rates and expected run-times from the data-sheets, and most major brands do publish power-curves, but those didn't really give a good head to head comparison. So I grabbed an Arduino, Data-Logger Shield, and a few packs of AA size batteries from stock and got to work.

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Product Reviews

Raspberry Pi Retro Arcade Game Console

Posted by John on May 21, 2014

This project brings together two great things, one new and one old: The Raspberry Pi & Retro Gaming! Having cut my teeth on Asteroids on the Atari 2600, and Load Runner on the Apple IIe, what is called "retro" is a thing that I lived through the first time, and would like to occasionally revisit. When I want to play early computer games, I can always emulate them on my laptop, as it already has the original keyboard and mouse inputs, but a lot of early arcade style games really require the visceral touch of a full sized joystick along with some big buttons that you can mash.

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Projects Tutorials

3D Printer Calibration

Posted by John on May 6, 2013

One place that I have found very little good information in the 3D printing world, has to do with properly calibrating your 3D printer. Improper calibration can result in a huge amount of wasted PLA or PVC while setting your printer up right will save you plastic, time and frustration. [More]

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Projects Tutorials

Adventures in 3D printing

Posted by John on Apr 18, 2013
While I love Maker Culture, I generally self-identify more as a kind of 1950s “Popular Mechanics” old-school hobbyist. You know the kind: lathe and mini-mill in the basement, welder in the garage, and random woodworking and electrical equipment scattered all over the house. So I have been struggling for the last few years with whether or not to invest in a 3D printer. They have always seemed pretty pricy, and I was never sure how much use I would get out of one. On the other hand, there is no question of the raw cool involved in being able to print off plastic widgets with ease, and perhaps even get involved in a little lost-PLA casting. When we started carrying the Printrbot Jr. I finally broke down. [More]