About My Blag
Here's where I keep logs of long-term projects, philosophical musings, and things that will be part of my upcoming 8,000-page handwritten manefesto.
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Well, this is cool.
Inventables is throwing $40,000 at the first person to come up with a way to make RepRap filament at home. Luckily, I’m already working on this project (even though I’ve since started from scratch). Here’s what I’m up to, and what I’ve done so far:
Adrian Boyer and Forrest Higgs tried their hand at making an auger. Exhibit 1 and 2 Surprisingly, I can’t find any reference to anyone in the Reprap community trying to make an auger as they’re already made. Just take a look at this page. It shows an auger with a core that is larger at the tip than it is at the base, somewhat like this design of mine:
There’s probably a reason for no one investigating this type of auger. They’re really hard to make, and the contributors to the RepRap community (especially the innovators, less so the prosteletariat) generally don’t have really high-end tools like five axis mills.
Not only are these augers really hard to make, they’re also really expensive to buy. Here’s two I found on eBay:
Click to slightly embiggen
$500 and $1200 is far too much to include in a project that should cost $250. I’ve shown my ‘bar napkin sketch’ (below) of my extruder to many, many machinists, and they say this is a $1000 part. That’s out of the budget for this build, so I’ve got to figure out something. Hopefully I’ll have something by the end of next week.
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