NC Maker Faire 2012: Machine Tools And 3D Printers

June 24, 2012 by Jeremy Cook 8 Comments

There were quite a few 3D printers at the NC Maker Faire this year (like the [Fablicator], several [RepRap]s, and [MakerBot]s) as well as a few subtractive machining devices including a wood lathe, a [ShopBot] display (one of the sponsors), and my little CNC router. There was even a little [Eggbot] on display, which combines several CNC concepts into a really unique device for printing a picture on an egg.

Check out the video below for lots of examples of what was at the Faire. There’s always room for one more 3D printing or CNC machining enthusiast, so hopefully it inspired some makers to expand their capabilities! Continue reading “NC Maker Faire 2012: Machine Tools And 3D Printers” →

NC Maker Faire 2012: Hackaweek Display

June 22, 2012 by Jeremy Cook 7 Comments

[youtube http://www.youtube.com/watch?v=gjtH3iA1YrY&w=470&h=315%5D

[Dino] has been featured here at [HAD] on many occasions, so I was excited to see some of his inventions in person and meet the man himself. [Dino] didn’t disappoint, bringing a display that included a working demonstration of his upcoming cover story for Make Magazine – an automatic doggie ball-thrower. Also there were some crazy musical instruments, what appeared to be a cylindrical oscilloscope display, and a robot rolling around with the thrown balls (and kids).

As seen in the video, one thing to remember if you’re displaying at a Faire, kids will definitely be there, and will interact with anything they can. This can be good or bad, so make sure you design your display, like [Hackaweek]’s to be the former. [Dino] also had a projector pointed at the wall playing some video. This made for a great attention-getter! Check out the short videos below of his ball thrower in action and a view of the show from one of his robots! Continue reading “NC Maker Faire 2012: Hackaweek Display” →

NC Maker Faire 2012: Robot Hockey

June 21, 2012 by Jeremy Cook 9 Comments

Robot combat has inspired makers probably since the first one was conceived. Whether it’s an epic struggle between two future superpowers, or simply a friendly match of robot hockey, it’s always fun to watch. NC Maker Faire 2012 was no exception as [Carolina Combat Robots] had a small arena with remote control robots going at it. The matches were incredibly popular, and I was glad to be able to see some of it from my table next door!

Check out the video after the break for some footage of these ‘bots in action! Continue reading “NC Maker Faire 2012: Robot Hockey” →

Raleigh Maker Faire 2012

June 20, 2012 by Jeremy Cook 17 Comments

As [Caleb] mentioned earlier, I attended the Raleigh Maker Faire this year as an exhibitor. Although the table was for my personal site, some of you might have noticed that I was wearing a sweet [HAD] shirt and dispensing our stickers (which seemed to fly off the table). The event was extremely fun from the “other end of the table,” and I very much enjoyed meeting everyone. If you’re on the fence about showing off your stuff at one of these events, my advice would be to absolutely go for it!

The event itself is staffed entirely by volunteers, and Raleigh was able to attract more people this year than ever before. Thanks especially to [Kevin Gunn] and all of the volunteers for coordinating and setting everything up. Everyone was extremely helpful and the event was easy to find and prep for.

One warning though, if you do decide to set up a booth at a Faire, expect to talk a lot. You’ll feel like you’re among friends though, and you’re probably an expert (or at least can fake it) at whatever you’re displaying, so it’s really fun! I’ll be doing several more posts on this event, so be sure to check back, especially if you attended! Continue reading “Raleigh Maker Faire 2012” →

A Simple RF Signal Strength Meter

June 12, 2012 by Jeremy Cook 18 Comments

[Scott] wrote in to us with his simple, but well done RF signal strength meter. As he points out in his post, sometimes an Arduino is overkill, so a Picaxe 08M was used instead. Apparently this was a refresh of a high school project that he did. Certainly many of us would have liked to go to that high school!

An interesting part of this project is how he used a laser cutter to produce his PCB traces. This was done by applying black paint to the copper on his board and cutting everywhere he didn’t want copper traces. The results were quite good, and should work well when this project is finalized in an enclosure

Check out the video after the break to see this circuit in action. He explains the build in it, but if you just want to see the signal strength lights come on, fast forward to around 2:25. Continue reading “A Simple RF Signal Strength Meter” →

How To Make A Whamola

June 1, 2012 by Jeremy Cook 15 Comments

If you’ve ever wanted to combine the extreme note-bending capability of a trombone with the obvious awesomeness of a bass guitar, maybe a whamola like this one could be for you! I’d never heard of one until recently, and haven’t picked up my bass in years, but my much more musically inclined cousin and I decided to build one.

It should be noted that this instrument is quite prone to string breakage if the handle is used too forcefully, so caution should be used both when building and playing. As with many hacks an old piece of equipment, a bass guitar in this case, was partially sacrificed to make it.

The build itself, outlined here for the main assembly, or this post for mounting the electronics, was quite simple. It took an afternoon of milling machine and miter saw work to get the 1 3/8 inch square piece of wood cut to size. Cavities for the electronics and a slot for the handle axis (components for a screen repair tool and a bolt) were cut with the milling machine – a router could also be used. It turned out to be a ton of fun to play, especially with an amp and distortion pedal. Check out the video after the break to see us playing it, as well as one of the whamola going together! Continue reading “How To Make A Whamola” →

An Arduino Based Quadruped Robot

May 27, 2012 by Jeremy Cook 6 Comments

Sure, we see hexapods all the time at [HAD], but moving around with four legs can be more tricky kinematics-wise. This Instructable shows you how to make one out of balsa wood.

Although one might not think of balsa to make their robot out of [vexedpheonix] explains that this was chosen because it’s extremely light and easy to work with. Since he was trying to keep costs down, the cheapest servos available were used. These weren’t all that powerful, so the lighter the body the better! According to the included bill of materials, he was able to keep the entire robot build under $100.

According to the article, the hardest part was making four copies of the same leg. We might suggest using a CNC router, but building one would obviously add a huge layer of complication to the project!

Thanks for the tip on this one [SteveT]! Be sure to check out the video of this little robot waving one of it’s legs or trying to walk after the break! Continue reading “An Arduino Based Quadruped Robot” →