Instructables user Jetpack5 created a series of Star Wars space vehicles out of floppy-disk parts and office supplies. There's even a rubber-band-ball Death Star! Also in the set: a Millennium Falcon and a truly spiffy X-Wing fighter. This is a potentially productive way of using up the 5-billion-odd 3.5" floppies kicking around, slowly decaying. Better than my idea of a massive Beowulf cluster of 486s with four floppy drives each, rack-mounted and spanned to create a massively inefficient, room-sized virtual ZIP cartridge, which would be serviced by a dozen rollerbladed teenagers who would whisk around, swapping out corrupt disks.
Mike Schropp's "BioComputer" is a PC casemod that actually grows wheatgrass, using waste-heat from the computer to provide a hospitable hothouse environment. He's posted detailed build-logs from the project, and plans more ambitious horticulture.
I can’t exactly recall when the idea came to me, but at some point I started wanting to use the heat from a computer as a way to warm the soil and help with germination/growth. I’m about as far from a botanist as it comes, I did some reading online and became pretty interested in the effects of soil temperature on germination/growth. I read different studies and papers from various universities. It was not too long into that process that I became hooked on the idea of using computer heat as a way to control the soil temperature of some sort of living plant life.
As the idea developed further I started looking into wheatgrass as a plant option. There is something clean and natural about the look and idea of a piece of grass growing in my basement. I thought the look would alter the space a little bit and add a bit of color along with something more than just metals and plastics. After reading enough studies and papers on the effects of soil temperature and germination with wheatgrass I felt like I had a good enough handle on the basics to tackle this.
Redditor BillyAppletini surprised a friend with an "Imperial CAT-AT (All-Terrain Armored-Transport)" -- a cat-condo/AT-AT walker. His Imgur gallery , which documents the build, has some rudimentary plans as well.
I wouldn't consider myself a great woodworker or an artist - but I will take credit for being committed to a joke. I wrecked my house for a month building this, which was about 27 days longer than I wish it would have taken. The trickiest part was keeping any of my friends from coming inside my place for that whole time - I knew they wouldn't be able to keep it a secret!
The inside of the CAT-AT has a fully furnished luxury cat condo.
I was originally going to forge an Amazon receipt and make it look like my buddy's cat ordered it on his Amazon account and have it delivered while he was at work, but enough was enough - when it was complete, I had to get it out of my loft and clean up.
On EnglishRussia (and apparently ganked from
a possibly defunct LiveJournal -- It looks like LJ had an outage earlier today), a wonderful detailed HOWTO for making the tiniest, most adorable kitchen knife you ever did see.
A kitchen knife may become an end in any argument… This knife is made on a scale of 1 to 12 from flat stained steel sheet 1.5 mm thick. Other elements are made of plastic and the clinchers are from aluminium wire 0.6 mm in diameter.The needed tools: a vise, 2 files, 3 broach files, abrasive paper of two types, a drill fixed on a vertical support – 1 set, a drill bit 0.6 mm, a piece of thick felt for polishing the handle, an extra wooden bar.
Bruce sez, "How Stella made her own Doctor Who themed TARDIS cake at home on her own with no previous experience. Includes pictures throughout the process."
I wanted a TARDIS cake that actually had the shape of the police box. I didn’t want to just draw a TARDIS on top of a cake. The TARDIS is vertical, not horizontal, so I knew I would have to stack cakes to make it work. Without wanting to make it too impractical or large, I decided to make a flat cake and cut smaller square pieces until I got to the right height. This would be my TARDIS, and then I’d put this on top of a second cake to make a scene featuring the TARDIS landing on a grassy field, which would also ensure I’d have enough cake for the guests, since the TARDIS itself might not be big enough.
On Instructables, Natalina explains how she turned her motorcycle helmet into a disco ball: "This disco ball helmet uses real glass, as it is intended as a costume piece (to be paired with a disco backpack, coming soon!). If you want it to be functional, acrylic mirror would be safer and lighter weight (though not as shiny and reflective)."
CarlBass on Instructables (who's also the CEO of Autodesk) created a 3D modelled, laser-cut version of his son's head, designed to have a secret compartment instead of brains.
We made a box in the shape of my son’s head. We laser cut pieces of taskboard (corrugated cardboard works well, too) and laminated them together. The heads pivots on a dowel and is held in place by two magnets... Round magnets have been added on the top and bottom of the head so it snaps close and conceals the secret hiding spot.
If you can make homemade corn syrup, you can make homemade marshmallows. If you can make homemade marshmallows, you can make homemade Lucky Charms marshmallows. If you can do that, you are become death, destroyer of worlds.
That said, making homemade Lucky Charms is not for everyone.
You can read that sentence as a warning or as a challenge to be one of the few who are up to the task. I will never make them again. That's not because they turned out poorly. No, quite the opposite - they were amazing! However, homemade Lucky Charms were so labor-intensive that both Jonathan and I are still recovering - we have blisters on our thumbs from continuous pressing on cookie cutters (Jonathan had to take over after my fingers hurt so much that I couldn't cut anymore).
Instructables member TimAnderson has a great HOWTO for growing molded "portait gourds," a technique from China and would work with other vegetables. He starts with a 3D sculpture of his subject, creates a mold, and then coaxes the veg to grow within the mold's constraints.
This mold has a flexible rubber lining which makes it easy to remove from the gourd. A plaster mold adheres to the gourd more tenaciously and usually the mold is destroyed in the course of removing it from around the gourd.
The gourd is then allowed to dry slowly, and the outer coating called the "cuticle" is removed. Then the finishing steps, if any, are done.
On this gourd, the details of the face and hair were then traced with the point of a jade knife to enhance the detail, It was dyed with dark tea, and a coat of varnish was applied to make it shiny.
Bethany Nixon's husband claims to have found the exact proportions of peppermint extract, green food dye, and vanilla ice-cream to reproduce the seasonal McDonald's Shamrock Shake year round. This will certainly come in handy for those out-of-season snake infestations!
Dan is one of those people that run out the door to get a Shamrock Shake the day they are back at McDonald’s. You too? Well, today my husband created his own version in our kitchen, and I thought I’d share his recipe with you. Now both of you can have that minty goodness without ever leaving home & all year long!
Here’s our Arduino based “Internet of Things” camera. It’s a simple remote monitoring using the Eye-Fi wireless SD card and Adafruit Data Logging Shield for Arduino. The Eye-Fi card is a tiny wireless memory card. It stores photos and fits inside a camera just like a regular SD card, but also has built-in WiFi transceiver that can upload images to your computer, smartphone or to various photo-sharing sites. We use one here when taking pictures for our tutorials — it’s a great timesaver, eliminating the extra USB transfer step that’s otherwise necessary. Can the Eye-Fi card work in an Arduino SD card adapter? You bet! Adding a TTL Serial JPEG camera, together with some minimal prep work, we can then create a self-contained wireless monitoring camera with motion-sensing capabilities. Hide it inside a hollowed-out book or a plush dinosaur toy and discover who’s been eating all your Thin Mints cookies!
What makes this combination way cooler than just a normal SD card or a USB cable to a computer is all the infrastructure provided by the Eye-Fi service — not just transferring images to your computer, but pushing them to your smartphone, photo-sharing sites like Flickr, issuing email or Twitter notifications, etc. This is all configured through the Eye-Fi application — there’s no additional coding required.
From the August 1951 ish of Mechanix Illustrated, a modest HOWTO describing a "Snooperscope" that requires a 4,000 to 6,000-volt power-supply to fire infrared light at and through the materials around you.
Construction of the snooperscope: The image converter tube is mounted in a plastic drinking cup 3-1/2 in. high by 2-1/2 in. in diameter. The optical system required depends upon your intended use. We used a small tripod type magnifier lens of 10 power (1 in. focal length) for the front lens and objects from three inches to one and a half feet can be focused. There is no reason why a greater range cannot be had with this lens by moving it closer or farther away from the tube.
After selecting the lens system mount it in a hole cut into the bottom of the cup. A jeweler’s saw or coping saw is ideal for cutting the hole. Paint the inside of the cup with black paint. Black airplane dope works fine. No light other than that from the lens must be permitted to hit the tube. Place an infrared filter between tube and lens to reduce effects of stray white light.
The image converter tube is inserted with the graphite side toward the front lens and the metal ring toward the mouth of the cup. A thin flexible lead from the metal ring connects to the positive side of the power supply. Some tubes were manufactured without this lead, in which case a piece of spring metal pressed against the metal ring will work just as well. The front end of the tube has a graphite ring around it. This is the end where the infrared image is to be focused. The graphite coating is the cathode or negative lead. Connect this lead to the B minus side of the power supply. A piece of spring brass or even the flat sheet metal carefully removed from a tin can should be formed with the fingers so it fits snugly around the cathode terminal.
Karen sez, "Instructables user abetusk has designed her own animatronic cat ears." Holy awesomely cute. I mean keee-yooo-te.
I saw the demo video for the neurowear "necomimi" brain controlled cat ears and I thought they were pretty awesome. I'm just starting to learn electronics and I thought a fun project to start out would be making my own version. Sadly, I don't think I'm adept enough yet to take on making my own EEG and I don't think the EEG's that are available are very reasonably priced, so I settled for having a button input to control the cat ears.
I wanted to build something that wasn't too expensive and was easy enough to be done in a sitting or two. I picked out some cheap servo motors, some craft supplies, spent a weekend or two developing code to control the servo's from a microcontroller and after much trial and error, I built some kitty ears that I think are pretty decent.
Aerogel.org is devoted to making open versions of aerogel, the super-strong, super-light new material. They provide recipes for several sorts of aerogel, testing protocols, and projects you can undertake with your homebrew miracle substances.
Propylene oxide is a known carcinogen (exposure can cause cancer), and epichlorohydrin is probably too. If you plan on doing this procedure, take the proper precautions to prevent your exposure to the vapors of these substances by using a fume hood in lab, if possible, or at the very least a fitted respirator (gas mask) with the right organics cartridges and a well-ventilated space, on top of the usual splash goggles, gloves, long pants, and closed-toe shoes.
Look under Explore > Information About Chemicals to see where you can find health and safety information about these and other chemicals.
If you can’t use these substances safely, don’t use them until you can!