I love my heated build platform. It's the best upgrade my MakerBot has seen. No other change has improved my print quality and confidence to this degree.
But if you look at the pictures on that page, you'll notice my least favorite feature: the bolts, or as I call them, the MakerBot Industries Amazing Nozzle Destroyers. Fortunately, there's an easy fix.
In my previous professional life, I processed a lot of credit card numbers. When reading credit card numbers from an unknown source, it helps to have a fast way of checking basic validity — to filter out bogus input. Such a method exists: the Luhn algorithm. I developed a very fast implementation of the algorithm a few years ago, and I keep seeing it pop up other places.
Polylactic Acid is a compostable plastic that can be made from renewable resources — usually plants. Compared to ABS plastic, it's much harder, warps much less, and can be crystal clear. When I first got my hands on some PLA filament in 2009, it had the potential to be my new favorite plastic...but getting it working took time.
It's been over two years since I last posted anything substantive on the net.