GearHeads Corner
June 04, 2020, 12:11:19 AM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Search Login Register  
Pages: [1]
  Print  
Author Topic: David C. Roys Kinetic engine revealed  (Read 2647 times)
0 Members and 1 Guest are viewing this topic.
Kineticrazy
Newbie
*
Posts: 29


View Profile
« on: November 29, 2016, 11:27:01 PM »

Hello all,
    I, like many others, have been curious as to the drive mechanism involved in David Roy's sculpture s.Particu larly the ratchet and pawl design. I happened upon a solution the other day, in the form of an expired patent. I hope others here will enjoy reading it as much as I have.

https://www.google.com/patents/US4637152

Logged
marklazarz
Full Member
***
Posts: 141



View Profile WWW
« Reply #1 on: November 30, 2016, 09:19:54 AM »

Kineticra zy:

Thank you for sharing that informati on!

Mark
Logged
Kineticrazy
Newbie
*
Posts: 29


View Profile
« Reply #2 on: December 01, 2016, 10:15:22 AM »

Another interesti ng thing I found in my research was a post by David's wife. She was answering a question regarding what material is used for the black cables that loop between sections of his sculpture s. Turns out they are springs. Extension springs with the little loops snipped from the ends, and several wound together a short distance on the ends to create the length desired. Here's a link to what I believe she was describin g.


https://www.amazon.com/dp/B016W7W9KS/ref=wl_it_dp_o_pC_S_ttl?_encoding=UTF8&colid=13IE62F9MLNI5&coliid=I33J8UUS8A7F7G

I hope to construct something soon, I'll be sure to share.

Eric
Logged
BillM
Full Member
***
Posts: 120


View Profile
« Reply #3 on: December 01, 2016, 02:49:34 PM »

Eric

Thanks for sharing the info about David Roy's kinetic sculpture s.   His sculpture s are certainly mesmerizi ng.

Bill
Logged
Kineticrazy
Newbie
*
Posts: 29


View Profile
« Reply #4 on: December 04, 2016, 10:13:44 AM »

Here is a link to additiona l drawings of David Roy's sculpture s "Aztec" and "Cumulus". If you scroll down the page, you will come to the screen shots of the computer drawings. Of particula r interest to me, were the "Aztec" butterfly pawls. If you look closely at the innermost pawl, it has a small green square with an arrow.... ..magnet maybe??

https://priceonomics.com/the-kinetic-wood-sculptor/

Eric

Link to Aztec video.. https://www.youtube.com/watch?v=rY96n-dxrs0&t=44s

Link to Cumulus video.. https://www.youtube.com/watch?v=CAH1o1ruY7Q
« Last Edit: December 04, 2016, 10:25:06 AM by Kineticrazy » Logged
Pages: [1]
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!