0

October 30, 2014 AT 6:00 am

Cornell University Research Team Devises a Miniscule 3D Printed Spider Harness #3DxScience #3DThursday #3DPrinting

Pasted Image 10 28 14 7 43 AM

As an aid to research jumping spiders (Phidippus audax, of the family Salticidae), Cornell researchers Gil Menda, Paul S. Shamble, Eyal I. Nitzany, James R. Golden, and Ronald R. Hoy came up with a unique 3D printed harness to prevent their tiny spider experimental subjects from exploding and dying while they analyzed them. You can read their findings on the Cornell site. Here is an article from 3DPrint.com detailing the 3D printed elements of the project:

…The Cornell researchers wanted to understand the structure and functioning of this particular spider’s visual system (specifically, the brain’s neurons) but studying the brain of the jumping spider proved more challenging than they’d anticipated. Each time they attempted to examine the spiders’ brains, the study subjects would literally explode. This is because the bodies of these spiders are filled with a liquid that is highly pressurized, enabling their bodies to move, something like tiny hydraulic systems. When the jumping spiders’ bodies were pierced, the creatures would burst, the spiders would die, end of experiment.

To hold the jumping spiders in place while they studied them, the lab team devised a tiny, 3D printed plastic harness shaped somewhat like an upper-case letter “I.” In essence, the harness is clamped down over the body of the spider and warm wax is placed over both to keep the study subject in place. As the experiment involves inserting a tiny, hair’s-width electrode into the brain of the arachnid, any movement would skew the results. Menda devised a method for creating a self-sealing hole in the spider’s head so the electrode could be inserted.

Once the spider is restrained in its waxy harness, the researchers show it images of flies as well as other jumping spiders (“A Clockwork Orange” comes to mind). When the spiders saw pictures of flies, there was a notable jump in their brains’ electrical activity. Evidently, the eight eyes of spiders have differing functions. While the primary pair, the larger of the jumping spider’s eyes sees objects and details, the secondary four eyes process motion….

Read more.

Pasted Image 10 28 14 7 44 AM

Pasted Image 10 28 14 7 44 AM


649-1
Every Thursday is #3dthursday here at Adafruit! The DIY 3D printing community has passion and dedication for making solid objects from digital models. Recently, we have noticed electronics projects integrated with 3D printed enclosures, brackets, and sculptures, so each Thursday we celebrate and highlight these bold pioneers!

Have you considered building a 3D project around an Arduino or other microcontroller? How about printing a bracket to mount your Raspberry Pi to the back of your HD monitor? And don’t forget the countless LED projects that are possible when you are modeling your projects in 3D!

The Adafruit Learning System has dozens of great tools to get you well on your way to creating incredible works of engineering, interactive art, and design with your 3D printer! We also offer the LulzBot TAZ – Open source 3D Printer and the Printrbot Simple Metal 3D Printer in our store. If you’ve made a cool project that combines 3D printing and electronics, be sure to let us know, and we’ll feature it here!


Check out all the Circuit Playground Episodes! Our new kid’s show and subscribe!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground”Adafruit’s Apps!


Maker Business — Transforming Today’s Bad Jobs into Tomorrow’s Good Jobs

Wearables — Snap a picture

Electronics — To Y5V or not to Y5V?

Biohacking — Ticks are Spreading an Allergy to Meat

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.