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Student satellites can be monitored using a simple scanner
Written by admin   
Monday, 13 December 2010 00:00

Authors: admin

Two satellites designed and constructed by students at The University of Texas at Austin launched on Nov. 19. The satellites will orbit and communicate with each other in real-time and transmit digital data beacons and relayed communications using the AX.25 protocol. The frequencies are in the 144 MHz and 440 MHz range amateur radio bands and can be received by a regular radio scanner. [via]

Last Updated on Monday, 13 December 2010 18:44
 
Openprinter Wiki
Written by Jay   
Monday, 13 December 2010 00:00

Authors: Jay

The one piece of hardware that I just can’t bring my self to buy is a printer. Mostly because I have so few reasons to print anything that buying a printer is just a waste of money because the toner dries up long before I ever need to use it.  And with ink cartridges costing around $40 and up it’s cheaper to buy a printer when i want to print then pitch it out when I’m done.  So I’m kind of excited to find the open printer project. an open source printer could be the solution to this crazy printer problems.  I would have to pay for more then the printer is worth.

Read more about openprinter at openprinter.wikia.com

via: http://wp.mercenarymind.com/archives/57

Last Updated on Monday, 13 December 2010 20:05
 
iPhone apps for engineers and electronics
Written by admin   
Friday, 03 December 2010 00:00

Authors: admin

This is a collection of iPhone apps for electronic enthusiasts and engineers.

iPhone apps for engineers and electronics - [Link]

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Last Updated on Thursday, 02 December 2010 20:36
 
Tips and tricks for using a Digital Caliper
Written by MakerBlock   
Monday, 29 November 2010 00:00

Authors: MakerBlock

 

Tips and tricks for using a Digital Caliper

Tricks for measuring with a digital caliper

A digital caliper is one of the most useful accessories to a 3D printer.  With a caliper in hand you can ensure you’re going to end up with accurate replacement or upgrade parts.  Some Skeinforge guides even suggest using calipers to assist in calibrating your printer.  The guys over at Buildlog.net have put together a short guide with some tips and tricks for using your digital calipers.

 

Read more: http://blog.makerbot.com/2010/11/15/tips-and-tricks-for-using-a-digital-caliper/

Last Updated on Monday, 29 November 2010 03:11
 
Finished IN-16 nixie tube email counter
Written by blog   
Monday, 29 November 2010 00:00

Authors: blog

nixie_monitor.JPG

This nixie tube counter displays the count of my gmail inbox. For a sense of scale, the counter is mounted on top of a 22 inch computer monitor, attached by a velcro strip.

nixie_finished.JPG

The top of the case is a little scratched from the build process, so I'll make another one soon (I have about ~100 such cases).

nixie_circuit.JPG

The module on the left is a $2 PL2303 USB serial adapter from ebay, which supplies both 5V power and instructions from the computer. The module on the right is the high-voltage anode driver for the nixie. The chip in front is an Atmel AVR Atmega2313. The nixie tube is a Soviet IN-16, brand new from old stock. The cathode driver for the nixie is a Soviet K155ID1 (74141 clone) and is mounted underneath the tube.

by coreylcoreyl

Read more: http://coreyl.wikidot.com/blog%3A14

Last Updated on Monday, 29 November 2010 02:53
 
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