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Tabletop Octopus Whirligig

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Project by johnhutchinson posted 12-14-2013 02:54 PM 1343 views 7 times favorited 10 comments Add to Favorites Watch

Doe asked how the wind-driven octopus whirligig works, so I’m posting a picture of a work in progress along with a video. This one is a crank-driven tabletop automaton, but the mechanics are the same – a rotating cam progressively displaces extensions of the tentacles below the top of the sea chest.

I’m upping the ante on this one by adding a reciprocating sailor’s hat. Making the cam a wedge, rather than a flat disk, adds vertical movement. As with the outdoor version, the head’s a fence post finial.

My “Menacing Octopus” will look something like this when it’s done. https://vimeo.com/54564005
For now, it’s a bunch of parts in a box. :)

I’m not an automata blogger … yet … but I do subscribe to The Automata Blog by Dug North. Dug’s a good friend and I highly recommend it. http://blog.dugnorth.com/

Rob Ives also provides a wealth of gizmo information on his website. http://www.robives.com/blog

-- John - Central Ohio - "too much is never enough"





10 comments so far

View luv2learn's profile

luv2learn

1703 posts in 958 days


#1 posted 12-14-2013 03:48 PM

John, you are having too much fun. I like it!!

-- Lee - Northern idaho~"If the women don't find you handsome, at least they ought to find you handy"~ Red Green

View johnhutchinson's profile

johnhutchinson

626 posts in 284 days


#2 posted 12-14-2013 04:11 PM

Thanks, Lee.
Too much is never enough … or did I say that already? :)

-- John - Central Ohio - "too much is never enough"

View hoss12992's profile

hoss12992

2750 posts in 548 days


#3 posted 12-14-2013 04:29 PM

Thanks for the video, it helps alot. Love your creativity and craftsmanship.

-- The Old Rednek Workshop https://www.facebook.com/theoldrednekworkshoptn

View Doe's profile

Doe

980 posts in 1485 days


#4 posted 12-14-2013 05:06 PM

A million thanks! I ordered the book you mentioned in your previous post, plus a bunch more. I also subscribed to Dug’s blog and plan on buying some more books. This is going to be fun!

-- Mother Nature talks, I try to listen

View Jeffery Mullen's profile

Jeffery Mullen

323 posts in 1473 days


#5 posted 12-14-2013 05:19 PM

I really like making stuff like this and so I put in my favorite. Later when I get more time I will build one. I am very busy this season hauling food through out Oregon and Washington with not much tine to even to unlock my wood shop and just walk into it. Thanks for posting this what a fun project you have.

View johnhutchinson's profile

johnhutchinson

626 posts in 284 days


#6 posted 12-14-2013 05:43 PM

I’m down to the “some assembly required” stage. The hardest part was drilling the vertical hole through the finial for the sailor hat pushrod. I turned that job over to my younger brother—he’s a precision machinist who designs and builds wooden clocks. I work to .01 … he works to .0001 :)

-- John - Central Ohio - "too much is never enough"

View NormG's profile

NormG

4175 posts in 1659 days


#7 posted 12-14-2013 11:48 PM

Looks great

-- Norman

View Randy_ATX's profile

Randy_ATX

676 posts in 1097 days


#8 posted 12-15-2013 01:30 AM

Just the skill to create the sketch/video is impressive. Nice work.

-- Randy -- Austin, TX by way of Northwest (Woodville), OH

View HillbillyShooter's profile

HillbillyShooter

4595 posts in 947 days


#9 posted 12-16-2013 05:06 PM

Cool! Thanks for the blog (which I’ve added to my Bookmarks), and I ordered How to Make Animated Toys after your last post. You keep sharing and I may not be able to afford following your posts. LOL

-- John C. -- "Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth." George Washington

View Monte Pittman's profile

Monte Pittman

14196 posts in 993 days


#10 posted 12-17-2013 12:51 AM

Very cool. Thanks for sharing.

-- Mother Nature created it, I just assemble it.

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