HOME  |  NEWS  |  BLOGS  |  MESSAGES  |  FEATURES  |  VIDEOS  |  WEBINARS  |  INDUSTRIES  |  FOCUS ON FUNDAMENTALS
  |  REGISTER  |  LOGIN  |  HELP
Blogs
Gadget Freak
Gadget Freaks That Go Bump in the Night
10/31/2012

Image 1 of 3      Next >

Gadget Freak case #122: Cutting pumpkins the Tesla way:
Rick Crammond created a gadget for cutting Halloween pumpkins that is powered by the faucet in a kitchen sink. The water pressure drives a stack of CDs that has been converted into a turbine. Crammond's Tesla CD Turbine uses two principles developed by Nikola Tesla in the early 1900s. The turbine uses flat discs rather than blades or cups. 
In Crammond's gadget, the discs are CDs or DVDs stacked in their cases. Crammond adds a few other household items -- such as Krazy Glue and glue sticks -- and hooks it all to a kitchen faucet using a garden hose. The result is a surprisingly powerful turbine. Crammond uses that turbine power to drive a skill saw blade for easy pumpkin cutting.
Gadget Freak case #122: Cutting pumpkins the Tesla way: Rick Crammond created a gadget for cutting Halloween pumpkins that is powered by the faucet in a kitchen sink. The water pressure drives a stack of CDs that has been converted into a turbine. Crammond's Tesla CD Turbine uses two principles developed by Nikola Tesla in the early 1900s. The turbine uses flat discs rather than blades or cups.

In Crammond's gadget, the discs are CDs or DVDs stacked in their cases. Crammond adds a few other household items -- such as Krazy Glue and glue sticks -- and hooks it all to a kitchen faucet using a garden hose. The result is a surprisingly powerful turbine. Crammond uses that turbine power to drive a skill saw blade for easy pumpkin cutting.

Image 1 of 3      Next >

Return to Article

View Comments: Threaded|Newest First|Oldest First
Beth Stackpole
User Rank
Blogger
Nice collection of spooky stuff
Beth Stackpole   10/31/2012 8:28:57 AM
NO RATINGS
I personally have to go for the pumpkin cutter gadget. Could be a bit overkill in terms of finessing any good design, but definitely is in keeping with the spooky Halloween spirit.

jmiller
User Rank
Platinum
Re: Nice collection of spooky stuff
jmiller   10/31/2012 10:07:05 PM
NO RATINGS
Buddy of mine used a fake coffin with a drill inside to create some racket and freak out the little kids.  Cool idea.  Love to see some cool tech to cause some scares.

notarboca
User Rank
Gold
Re: Nice collection of spooky stuff
notarboca   10/31/2012 11:43:26 PM
NO RATINGS
I love stuff like this-- maybe before next year I'll learn enough about pneumatics and latex molding to build my own animatronic creature.  Just think, they pay Disney Imagineers to do this all day!

Rob Spiegel
User Rank
Blogger
Re: Nice collection of spooky stuff
Rob Spiegel   11/1/2012 3:16:06 AM
NO RATINGS
I always liked the pumpkin cutter, too, Beth. It's way over the top, and the picture of Rick is plenty scary. And who would have thought of creating a pumpkin cutter with water and CDs?

Nancy Golden
User Rank
Platinum
Spooky doorbell has my vote
Nancy Golden   10/31/2012 12:37:14 PM
NO RATINGS
I would love to have a seat watching the reaction of unsuspecting trick or treaters - especially on a foggy Halloween night. The strobe light was a great addition and the bat flying out the door made me jump just watching the video!

Tim
User Rank
Platinum
Re: Spooky doorbell has my vote
Tim   10/31/2012 8:15:12 PM
NO RATINGS
Kids are definitely not suspecting a rigged doorbell. Pretty cool use of electronics.

Nugent_56
User Rank
Gold
Spirit Radio?
Nugent_56   11/1/2012 9:12:32 AM
NO RATINGS
You forgot the "Spooky Radio" gadget!

Charles Murray
User Rank
Blogger
Soundtrack
Charles Murray   11/1/2012 7:03:05 PM
NO RATINGS
I like the doorbell-activated soundtrack. I've always wanted my doorbell to play the theme music from the movie, Halloween.

Cadman-LT
User Rank
Platinum
Storm effect
Cadman-LT   11/5/2012 2:01:26 PM
NO RATINGS
My favorite is the storm effect, I just like lightning.

Cadman-LT
User Rank
Platinum
Re: Storm effect
Cadman-LT   11/5/2012 2:03:47 PM
NO RATINGS
If you can't tell, that's what's in my profile picture. Lightning.

Partner Zone
More Blogs from Gadget Freak
Maker Faire recently celebrated its 10th anniversary with familiar celebrities and top chip companies, its youthful energy and do-it-yourself values intact.
Eleven years ago one of those rare, brilliant moments emerged from the crack staff of Design News: Let’s put the tinkerers among our audience community to work in designing and building some truly wacky devices. And Gadget Freak was born.
If you think the Apple Watch will turn heads, wait until you build the Apple II version.
From simple mods to more complex builds, here's a list and instructions for some of our favorite DIY robot projects.
Followers of Design News’ Gadget Freak blogs will have the opportunity next week to take home a wireless remote demo package that can be used to build garage door openers, tire pressure monitors, keyless entry systems, and much more.
Design News Webinar Series
5/21/2015 11:00 a.m. California / 2:00 p.m. New York
5/7/2015 11:00 a.m. California / 2:00 p.m. New York
6/3/2015 8:00 a.m. California / 11:00 a.m. New York
6/11/2015 11:00 a.m. California / 2:00 p.m. New York
Quick Poll
The Continuing Education Center offers engineers an entirely new way to get the education they need to formulate next-generation solutions.
Jun 8 - 12, Everything You Ever Wanted to Know about Filters
SEMESTERS: 1  |  2  |  3  |  4  |  5  |  6 |  7


Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.
Next Course June 2nd-4th:
Sponsored by Proto Labs
Learn More   |   Login   |   Archived Classes
Twitter Feed
Design News Twitter Feed
Like Us on Facebook

Sponsored Content

Technology Marketplace

Copyright © 2015 UBM Canon, A UBM company, All rights reserved. Privacy Policy | Terms of Service