The Shapeways Blog: 3D Printing News & Innovation

Shapeways Blog

3D Printing Liquid Metal on a Spider's Head at Room Temperature (VIDEO)


Display comments as (Linear | Threaded)

".... a spider killed it beforehand" - Haha, too funny.... Seriously excellent tech, though. So when is Shapeways getting one? :-)
#1 Glenn Slingsby (Homepage) on 2013-07-09 17:56 (Reply)
Heh Sims building music
#2 Dan Lee on 2013-07-09 18:01 (Reply)
Excellent beat ! I would like to apprentice while you amend your website, how can i subscribe for a blog
web site? The account helped me a acceptable deal.
I had been a little bit acquainted of this your broadcast provided bright clear concept
#2.1 Pest Control (Homepage) on 2013-07-14 04:51 (Reply)
A fascinating discussion is worth comment. I do believe that you should publish more about this subject matter, it may not be
a taboo matter but generally people do not discuss these subjects.

To the next! Cheers!!
#2.1.1 Pest Control (Homepage) on 2013-07-14 04:53 (Reply)
What's up, yup this post is genuinely pleasant and I have learned lot of things from it on the topic of blogging. thanks.
#2.2 pest control Omaha (Homepage) on 2013-07-16 20:52 (Reply)
Pretty sure that's a moth by the way.
#3 Anonymous on 2013-07-09 18:01 (Reply)
its a Spider Moth
#3.1 Anonymous on 2013-07-09 18:03 (Reply)
Write more, thats all I have to say. Literally, it seems as though you relied on the video to make your point.
You obviously know what youre talking about, why waste
your intelligence on just posting videos to your site when you could be giving us something informative to read?
#3.2 bee removal prairie hill (Homepage) on 2013-07-09 20:57 (Reply)
Keep in mind that this alloy is and stays liquid at room temperature, save for
the thin oxide layer that (probably barely) keeps it from pooling on the floor.
(A nice science fair toy nonetheless, though the time-lapse video is probably
more impressive and easier to show around than the thing itself)
#4 mkroeker on 2013-07-09 18:08 (Reply)
If you want all the gory details

"We focus on the binary eutectic alloy of gallium and indium (EGaIn, 75% Ga 25% In by weight), but any alloy of gallium will also work. EGaIn is liquid at room temperature (m.p. ?15.7 ° C) with metallic conductivity. [23] The liquid metal exhibits a negligible vapor pressure and low toxicity. Upon exposure to air, the metal forms a thin ( ? 1 nm) passivating“skin” composed of gallium oxide. [2] Passivation occurs nearly instantaneously under atmospheric oxygen levels and electrical resistance remains largely unaffected because the skin is thin. [24] In addition, the liquid metal adheres to most surfaces and alloys with many metals to form ohmic contacts."

There's still the matter of oxides present on the electrical leads of the (Radio Shack) components they are connecting together. Normally with solder you use flux to clean off the oxides and get good metal to metal connections. You may not have such great electrical connections using this technique but perhaps it would be better using gold plated metals on the component connections. This likely has applications in MEMS switches and re-configurable super high frequency antennas.
#5 MrNib on 2013-07-09 19:10 (Reply)
This 5-quart model will help you make casseroles,
soup, and roasts easily. That special graduate in
your life will think of you every time they use that slow cooker in their
college dorm. Because the lid will be sitting snugly on the
pot during the slow cooking, liquid will be generated as a by-product.
#5.1 (Homepage) on 2013-07-13 15:58 (Reply)
The company who started this campaign eventually became the world's largest soap company. Pizza delivery used to be strictly a phone transaction, but now the internet has brought ordering pizza to a new level. There is the Neapolitan pizza usually called the pizza Napolitano.
#5.2 dominos coupon code (Homepage) on 2013-07-31 23:51 (Reply)
I can't believe I came here only to be lied to by Shapeways.

"on a Spider's Head" - boldfaced lies, I say - the technology isn't as advanced as i'd hoped. ;-)
#6 Bill Shirley (Homepage) on 2013-07-10 15:01 (Reply)
#6.1 Duann on 2013-07-10 17:26 (Reply)

Add Comment

Enclosing asterisks marks text as bold (*word*), underscore are made via _word_.
Standard emoticons like :-) and ;-) are converted to images.

To prevent automated Bots from commentspamming, please enter the string you see in the image below in the appropriate input box. Your comment will only be submitted if the strings match. Please ensure that your browser supports and accepts cookies, or your comment cannot be verified correctly.

The Shapeways Blog: 3D Printing News & Innovation

Learn More »