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10 Crocheted Science Fiction Figures

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You wouldn't have known it before the age of the internet, but yarn crafts can be very geeky. Knitting and crocheting are examples of digital art, so to speak, as the patterns are strings of information rendered in bits. Some craftsters are science fiction fans as well, which gives us some great crochet projects to enjoy!

1. Mr. Spock

Craftster member Bookaholic made this Amigurumi version of Mr. Spock without a pattern, but due to popular demand, posted a pattern from memory.

2. Dr. Zoidberg

Tracey crocheted Dr. Zoidberg from the TV series Futurama. And then she made another one in blue, which she explains by referring to a parallel universe. And here I thought Futurama was a parallel universe! The pattern is posted at her blog.

3. Bender

Then Tracey was commissioned to produce these two baby Benders, complete with Mexican beer. They were inspired by a Futurama season five episode called "Lethal Inspection." She did an awesome job!

4. Doctor Who

DeviantART member Wolverinegal made an entire series of Doctor Who dolls in 2009. She crocheted each doll first, then made the clothing separately. You can read about the creative process at her blog.

5. Ood

Here's an Ood, a species from the Doctor Who series, as a 7-inch tall Amigurumi figure made by craftster Amy Dice. They've never been so cute! See more crocheted Doctor Who characters in this collection.

6. Discworld

Discworld is a series of books by Terry Pratchett in which the stories take place on a flat world supported on the backs of elephants riding on a giant turtle. June Gilbank turned this concept into a crochet project, which elicited a laugh from the author himself! Gilbank posted some details about how it was made.

7. Han Solo

This Han Solo in Carbonite Throw Pillow was made by Xanadoodle. She crocheted it for laughs, but then received criticism because it's not all that accurate. Geeks can be that way sometimes. I love it!

8. Darth Vader

You'll see a lot of cute little Amigurumi Star Wars characters on the internet, but this Darth Vader by Craftster member mplsdeanna is more like the real character. The pattern is posted so you can make your own.

9. Tom Servo

Craftster member Mage Akyla made Tom Servo from MST3K in two sizes, and shares the pattern. She also has an Etsy store called Mage Akyla's Crocheted Creature Market, where you can find more awesome creations.

10. Cthulhu

No science fiction list would be complete without Cthulhu, although there are enough crocheted Cthulhu projects to fill an entire list by themselves! Cthulhu Chick makes them constantly, in various forms and disguises, like this chef. Check out her Etsy store for the latest projects available for purchase.

See also: 10 Cute and Creepy Crochet Creations and 8 Examples of Witty Knitting.

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iStock // Ekaterina Minaeva
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Man Buys Two Metric Tons of LEGO Bricks; Sorts Them Via Machine Learning
May 21, 2017
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iStock // Ekaterina Minaeva

Jacques Mattheij made a small, but awesome, mistake. He went on eBay one evening and bid on a bunch of bulk LEGO brick auctions, then went to sleep. Upon waking, he discovered that he was the high bidder on many, and was now the proud owner of two tons of LEGO bricks. (This is about 4400 pounds.) He wrote, "[L]esson 1: if you win almost all bids you are bidding too high."

Mattheij had noticed that bulk, unsorted bricks sell for something like €10/kilogram, whereas sets are roughly €40/kg and rare parts go for up to €100/kg. Much of the value of the bricks is in their sorting. If he could reduce the entropy of these bins of unsorted bricks, he could make a tidy profit. While many people do this work by hand, the problem is enormous—just the kind of challenge for a computer. Mattheij writes:

There are 38000+ shapes and there are 100+ possible shades of color (you can roughly tell how old someone is by asking them what lego colors they remember from their youth).

In the following months, Mattheij built a proof-of-concept sorting system using, of course, LEGO. He broke the problem down into a series of sub-problems (including "feeding LEGO reliably from a hopper is surprisingly hard," one of those facts of nature that will stymie even the best system design). After tinkering with the prototype at length, he expanded the system to a surprisingly complex system of conveyer belts (powered by a home treadmill), various pieces of cabinetry, and "copious quantities of crazy glue."

Here's a video showing the current system running at low speed:

The key part of the system was running the bricks past a camera paired with a computer running a neural net-based image classifier. That allows the computer (when sufficiently trained on brick images) to recognize bricks and thus categorize them by color, shape, or other parameters. Remember that as bricks pass by, they can be in any orientation, can be dirty, can even be stuck to other pieces. So having a flexible software system is key to recognizing—in a fraction of a second—what a given brick is, in order to sort it out. When a match is found, a jet of compressed air pops the piece off the conveyer belt and into a waiting bin.

After much experimentation, Mattheij rewrote the software (several times in fact) to accomplish a variety of basic tasks. At its core, the system takes images from a webcam and feeds them to a neural network to do the classification. Of course, the neural net needs to be "trained" by showing it lots of images, and telling it what those images represent. Mattheij's breakthrough was allowing the machine to effectively train itself, with guidance: Running pieces through allows the system to take its own photos, make a guess, and build on that guess. As long as Mattheij corrects the incorrect guesses, he ends up with a decent (and self-reinforcing) corpus of training data. As the machine continues running, it can rack up more training, allowing it to recognize a broad variety of pieces on the fly.

Here's another video, focusing on how the pieces move on conveyer belts (running at slow speed so puny humans can follow). You can also see the air jets in action:

In an email interview, Mattheij told Mental Floss that the system currently sorts LEGO bricks into more than 50 categories. It can also be run in a color-sorting mode to bin the parts across 12 color groups. (Thus at present you'd likely do a two-pass sort on the bricks: once for shape, then a separate pass for color.) He continues to refine the system, with a focus on making its recognition abilities faster. At some point down the line, he plans to make the software portion open source. You're on your own as far as building conveyer belts, bins, and so forth.

Check out Mattheij's writeup in two parts for more information. It starts with an overview of the story, followed up with a deep dive on the software. He's also tweeting about the project (among other things). And if you look around a bit, you'll find bulk LEGO brick auctions online—it's definitely a thing!

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May 23, 2017
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