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I'm building a cyclocross bike from parts, since I like learning, and I generally like to build stuff.
So, I need to ask, are there any aluminum cyclocross-frames, that are quite cheap (like 100 - 200 euros, or the equivalent of that in dollars) that take a regular non-integrated headset.
Or can I put a integrated headset on a regular a-head fork?
I have an a-head fork lying around and would like to buy a Dolan Multi-X frame, which uses a integrated headset.
Making your own Squibs and detonating them.
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I am making this because I just did a project for a TV show production group that needed some squibs to detonate blood packs. I am just the guy who figured out the detonator and the squibs, you guys can figure out your own safety items.
As always, this is electricity and explosives, safety is always number 1 in these things.
Step 1) Go to Radioshake, procure a project box, a couple of 4D cell battery cases (or if you can source it, a small form 6V battery) A couple of 12 V momentary switches, and a nice 12V master switch (this can be of any type, I prefer the guarded lighted switches for the fact that it is overly visible that the system is armed)
You can also if you wish use LED's to show that it is armed.
Aluminum mouse pad scratch fix
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I have used a Mionix coated aluminum mouse pad for these past few months. It has worked fine for me, just wearing thing but smooth in the areas that were most used. I now have the problem that last week I had left some tools on my desk, and they dragged across the mouse pad, scratching it. The scratches aren't too close to where I move most, but in places they are still pretty deep. I have looked up some potential fixes for scratched aluminum surfaces (I got a lot of results about scratched Macbooks), but I am still unsure.
Any advice for me to mitigate the issue of some scratches in my aluminum mouse pad?
Canadian Filament Distributor
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Hey you Canadians browsing here, how interested are you in buying cheaper 3D printer filament in country?
Me and my buddy are looking at starting up a business, and we'll be selling the ABS filament at $25 per kg, and it's going to be tax free, we'll be paying it for you.
The tolerances of said filament will be 0.5% for the diameter, and 0.07% for the roundness.
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So, I was playing frisbee at night the other day with a regular frisbee, and someone brought this thing out, that changed colors gradually and had fiber optics from the center out to the edges. I thought it had potential, but there could be more done with it.
Is it feasable to add a microcontroller (ATMEGA328) and a gyroscope (1 axis) to sense rotation and control the LED colors based on that?
I know you can get the microcontroller in a QFN-32 package and a gyro in a LGA-16 package, but would it even be feasible to make a PCB that houses the electronics small enough to fit inside the roughly-larger-than-a-quarter sized space? Also, is 1500deg/sec too slow for sensing the rotation of a frisbee in flight?
$2,000 Robotics Themed Purchase
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Hello, I'm the president of the Robotics Club on campus and we are looking into some projects we could invest in. The University would provide capital and we are looking to optimize our project as cheaply/robust as possible. Our goal is to find some interesting projects to spend time on constructing/playing with-some assembly preferred!
Possible ideas we have floated are a semi robust quadcopter or similar robot kit such as
(Something we can spend time building and programming)
or perhaps a 3D Printer such as the SolidDoodle
Now I do not pretend to be an expert on the subjects of quadcopters, 3D printing or even robotics. I'm asking you, what would you do with a ~$2000 capital?
Also anybody with 3D printer or quadcopter experience that knows of good products or just wants to give your opinion, I'd love to hear it.