66% or better

Hackaday Links: March 23, 2014

hackaday-links-chain

[Jack] sent us a link to a Metropolitan Museum of Art video showing off a mechanized desk that plays music and has a ton of hidden compartments. Furniture makers of yore built hidden compartments in furniture all the time. After all, there weren’t credit cards back in the day and you had to keep important documents, cash, and everything else on hand. What strikes us is that this mates woodworking of the highest caliber with precision mechanics.

Before you get rid of that old box spring, ask yourself if you need to store dimensional goods. If you rip off the outer fabric, the network of wire inside makes a reasonable lumber rack.

And since we’re talking trash, we enjoyed seeing this water bottle wire spool minder which [Daniel] sent our way.

You know those portable DVD players you can hang from a headrest to entertain the kids on long trips? Well [John's] broke, and like chasing the dragon, once you’re hooked on watching videos during car trips there’s no going back. Luckily he was able to throw a Raspberry Pi at the problem. He now has a portable OpenElec XBMC device controlled via a smartphone.

[Jaromir] posted some breakout board footprints that you can use. It’s not the footprints that impress us, but the idea of using them to fill up board space when spinning a new PCB. [Thanks Sarah]

LEGO Gachapon. Need we say more? Okay, truth be told we had to look it up too; Wikipedia says it’s spelled Gashapon. These are coin-operated machines that dispense toys inside of plastic capsules. This one’s made of LEGO and it’s awesome.

[Mikhail] actually built his own ballast resistors for some HeNe laser tubes. This is a bit easier than it might sound at first, as they are much lower power than the tubes used in cutters. But none-the-less an interesting, and successful, experiment.

Comments

  1. ARM says:

    I was not aware of the fact that transformers existed in 1778.

  2. vonskippy says:

    “You know those portable DVD players you can hang from a headrest to entertain the kids on long trips?”

    Just one more reason that the kids today have the average IQ (innovation, curiosity, ambition, attention span) of a turnip.

    • mh says:

      That does depend on what the kids are watching though. There is plenty of educational stuff out there. Don’t blame the media itself, otherwise why are you on internet anyways? :-)

  3. Per Jensen says:

    Seriously HAD, soldering 6 SMD resistors to a PCB is “building his own ballast resistor” – WTF!

    • BarsMonster says:

      This is 8kV. How high you used to use SMD parts?

    • 0xfred says:

      I must admit I was expecting him to be making his own wire-wound resistors. (Judging by the quality of the OEM wirewound ballast on my eBay CO2 laser this can be done using the cardboard centre of a toilet roll.

      However I liked reading that “heat dissipation was so high that resistors were floating in molten solder”.

  4. K says:

    hey mike i being wanting to ask you guys for a while. why did you change the format of “HAD links” from being with picture to text only?

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