Drones For All!

Posted: February 21, 2013 by kwood94xj in For Fun

There has been a good bit of talk in the media as of late about Hobby and commercial drones. Debates on there regulation by the FCC and how they relate to surveillance on U.S. Citizens. There is a great group of people over at DIYDrones who make a arduino based Unmanned vehicle board. I have been following the project since its first board was designed. There newest version is nothing short of astounding. Not only can their boards be used on R/C Aircraft but also on R/C boats, cars, helicopters. Check it out and build yours today before the laws change and make it more difficult for hobbyist to comply.

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The Ultimate Cube Solver!

Posted: February 14, 2013 by getreelfishingpro in For Fun

If you have ever been frusturated over that rubix cube that you just couldn’t solve then this isn’t going to make you feel any better about it. Mike Dobson and David Gilday have made The World’s Fastest 3x3x3 Rubik’s Cube solving robot, Built using 4 x LEGO Mindstorms NXT kits (with some additional LEGO pieces) and a Samsung Galaxy SII smartphone.

CubeStormer II holds the Guiness World Record for a Robot to solve a 3x3x3 Rubik’s Cube which is 5.270 seconds.(including the scan time)

The machine was created by Mike and was programmed by David who also developed the two-phase algorithm which finds close to optimal solutions in milliseconds and choses the most efficient solve for the machine’s four grippers to manipulate.

Homemade X-Ray Tube

Posted: February 11, 2013 by kwood94xj in Misc Electronics

Today I was looking thru Ron Soyland’s Youtube Videos (Glasslinger) and saw a awesome video of him making a very small working X-Ray tube. This guy is absolutely amazing. His videos are fun to watch and very informative. Check it out after the break.

 

3D Print your own VW Bus!

Posted: February 11, 2013 by getreelfishingpro in CNC

vw bus 3d print

Calebkraft of MakerBot Thing Universe has made a VW bus that doubles as a box from his 3d printer. He also was kind enough to share all his the .STL files so you can make you very own! Check it out and get printing!

http://thegrue.com/i-made-a-thing-a-3d-printed-vw-bus-that-is-also-a-box/

H-Bridges

Posted: January 27, 2013 by kwood94xj in Events

The other day someone asked me about building a large H bridge to power some 25+ amp motors. Well after finding this Tutorial I then researched some higher current darlington transistors. These are rated at 50A and 120V up from the TIP-147/142 rating of 10A and 100V the price per BJT is about 7 times higher than the TIP series but if you need high current there is a cost.

PNP transistor link ON Semiconductor  MJ11033G $10.29/ea

NPN transistor link ON Semiconductor  MJ11032G $9.65/ea

These transistors would take the place of the TIP 147 & TIP142 BJT’s other than that the board traces would need beefing up to handle 5x the current. Also since these are in a different package (TO-3 vs TO-220) the board layout would need to be redesigned. I would think about mounting them on large heatsinks then running wires to the board.

CNC Porn

Posted: January 26, 2013 by kwood94xj in CNC

Stumbled across this video of CNC fabrication of a circuit board. This is something I hope to be able to do with our new DIY CNC machine.

 

fink000 is in!!

Posted: January 25, 2013 by kwood94xj in Hackerspace News

I would like to take the time to welcome fink000 to the Hackerspace. He brings to the table a background in Programming, Linux, RC Aviation. We look forward to having him post updates of his MAME Arcade and RC Lawnmower.

Tutorials, Tutorials, and alas more Tutorials.

Posted: January 24, 2013 by kwood94xj in CNC

Tonight while perusing the Buildyourcnc.com website I noticed a Tutorials section. Being naturally curious I clicked it and was blown away by the amount of video tutorials. These guys have really made sure that anyone can build a CNC mill if they so choose. Keep up the good work guys.

For the lazy among us (Myself included in that) here is the link right to the Tutorials page.

CNC Software

Posted: January 20, 2013 by kwood94xj in CNC

Today we are trying out some of the various CNC control software out there. I use both Linux and Windows depending on what needs to be done. I prefer Linux for many reasons but its stability is the most important benefit in this case. I have installed LinuxCNC and I am quite impressed with it. It has a great config GUI for setting up each axis of your mill. It also surprisingly easy to use. We are looking forward to running this great software when our Mill is complete.

 

LinuxCNC                   LinuxCNC1

BatchPCB Service

Posted: January 19, 2013 by kwood94xj in Prototyping

We have been looking at prototyping PCB services for a good while now. There are many options out there but the one that has gotten us sold is BatchPCB.com. It is a service of the popular Sparkfun.com. At $2.50/sq.in for 2-layer .062″ FR4 and $8.00/sq.in for 4-layer .062″ FR4 and best of all there is NO minimum quantity. There really is no better option. We can etch our own boards but at a higher price and less quality. Previously when doing 1 offs in house etching and hand drilling would be the way we would go. But since the BatchPCB service we can now get quality PCBs with no headaches or hassles.