When building something like this, the first question I ask myself is “how can I avoid making the wires into a rat’s nest?“ OK, maybe that’s not true if you look back at such projects as the Pegleg Hexapod or Boxie the Creepster. However, this was a wearable hack and has a very limited space to work with, so wires going everywhere on one’s forehead wasn’t really what I had in mind.
Instead of wires running everywhere, I decided to make my own CNC-routed PCB. What it amounts to is three separate lines of copper cut to approximately fit the bridge section of the glases in question. I measured everything and used Draftsight (see my Windows DS review) to draw the approximate shape with lines separating it into three isolated sections. The middle will act as ground and the top and bottom section act as the positive for each set of LEDs. It turned out better than I expected, and is mostly covered by the glasses.
Update 2/9/2012: If you’re having trouble downloading Ubuntu Draftsight, here’s a solution.
Update 2/5/2012: It seems that both the relative placement problems as well as the lack of being able to turn off the “CCS icon” and origin have been fixed! After some weird error, I removed the software and re-downloaded and installed Draftsight on my Ubuntu machine. After allowing a file to be updated per a prompt, things seem to be working perfectly (at least for these issues)! Thanks Dassault Systemes! (FYI, I had to download and install this manually using the terminal; it didn’t appear to be available on the Ubuntu Software Center).
The last time I reviewed Draftsight, it was the Windows version (my review here). With my recent conversion to the Ubuntu OS, I was quite happy that Draftsight (Download it here) was available. While away from work (and ProE), I do, obviously if you’ve ever seen this blog before, work on other projects. Generally they’re simple enough for 2D CAD – Draftsight in my case. With it’s ability to handle DXF files it really fits the bill when I’m trying to generate a drawing to send to my CAM software and have routed.
Draftsight for Ubuntu. Looks kind of like AutoCAD. Here’s a design for something that I’ll post about soon…
To preface everything, let me first say that it’s really great that Dassault Systemes decided to put out their CAD package for Ubuntu as well as Windows and Macintosh. Seriously, that’s pretty uncommon. As with the Windows version, the text commands are very close to AutoCAD, and, if you’re used to that package, the switch is pretty painless.
To the right is the schematic used to construct the LED nerd glasses(see the results here). The rectangular square piece in the middle of the LEDs represents the PCB. The middle acts as a neutral, and the sides each provide 3 volts when connected.
The 3 volt coin cell battery (Energizer 2032) that I used should really have a 33 Ohm resistor connected (see LEDcalc.com to easily calculate this) before going into each 3 volt bus. I’ve neglected this in my design, so the LEDs will be overpowered and will most likely burn out prematurely. Also an actual switch and battery holder would be a nice touch. As it stands now, the neutral is held onto the battery with electrical tape and the positive or signal wires are tapped onto positive by hand.
When someone thinks of “nerd glasses”, a certain image is generally conjured up. Probably thick black glasses with possibly some duct tape holding them together at the bridge or other structurally-important point. A true nerd, in my opinion, should probably integrate some sort of electronics, and possibly a CNC-cut circuit board to really show off their nerd credentials.
With that in mind, let me present the “ultimate nerd glasses”, which contain several nerd-friendly elements. These include: the glasses themselves, LED lights and a CNC cut circuit board behind the bridge of the glasses. There’s an animated .gif of the glasses in action by themselves after the break, but as for how to make one,Read more »
Ever since I saw these things, I really wanted to get my hands on some. Thanks to Getbuckyballs.com’s decision to send me some of their magnetic neodymium balls, my wish has been fulfilled. Their generosity doesn’t just extend to me though, if you’d like to purchase some, just use the promo code “jcopro” to get a 15% discount yourself (good for the first 10 people)!
To start off with, here’s a video of me putting my Buckyballs back into a 6 x 6 x 6 cube:
Making a cube again can be pretty difficult the first time you try it, but if you follow along with the video, it should make things significantly easier. One thing to take notice of is that when you’re trying to make the ring wider, be sure everything lines up straight and isn’t crossed. You may have to deviate from the direction you were going to wrap in as it sometimes goes together easier in the other direction.
So, as for a review, playing with these things is pretty fun, and being able to actually make things with them can be a great distraction or stress reliever. I’d recommend them for “date night” if it involves such movies as “The Holiday, or Sex and The City 2.” After the title rolls, just pull your Neocube out and the next time you look up the credits will hopefully be rolling. Seriously, these things are addictive, and if you’re like me, you’ll find yourself playing with them a lot while watching TV.
Besides the normal things you would do with neodymium balls, likeRead more »
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