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strandbeest turbine addon [message #69098] Mon, 03 June 2013 10:54 UTC Go to next message
avatar er1c  is currently offline er1c
Messages: 44
Registered: September 2008
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Member
my design for a vertical axis turbine addon for the strandbeest
it works! and on my first print Smile

index.php?t=getfile&id=33629&private=0

index.php?t=getfile&id=33630&private=0

and a vid of it in action:
http://www.youtube.com/watch?v=DbjWQJYrZ5I

need to do a bit more fine tuning to reduce the wobble on the turbine...

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http://er1c3dp.wordpress.com/
Re: strandbeest turbine addon [message #69725 is a reply to message #69098 ] Wed, 12 June 2013 23:18 UTC Go to previous messageGo to next message
avatar bmsleight  is currently offline bmsleight
Messages: 17
Registered: September 2011
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Junior Member
Cool.

What is the inertia like ?
Could you leave it to walk across the garden ?
Re: strandbeest turbine addon [message #69734 is a reply to message #69725 ] Thu, 13 June 2013 01:52 UTC Go to previous messageGo to next message
avatar er1c  is currently offline er1c
Messages: 44
Registered: September 2008
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that's something I'll need to test out Smile

actually I'm not really sure how well it'll work with natural wind.
the original idea behind going for a vertical axis one is so that it'll work with non-directional wind, but I've only tried it by blowing on one particular side of the turbine.

in terms of the amount of push require to start it walking, inertia isn't that big an issue, as the gears changes 16 rev of the turbine to 1 rev of the strandbeest drive shaft.


http://er1c3dp.wordpress.com/
Re: strandbeest turbine addon [message #69799 is a reply to message #69734 ] Fri, 14 June 2013 08:36 UTC Go to previous messageGo to next message
avatar bartv  is currently offline bartv
Messages: 1668
Registered: December 2007
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Shapie Expert
Awesome, I've forwarded this link to the designers! Also, I noticed you added little 'feet' - are these 3d printed as well?

Bart


Community Manager Europe | Shapeways
Re: strandbeest turbine addon [message #69881 is a reply to message #69799 ] Sat, 15 June 2013 13:34 UTC Go to previous messageGo to next message
avatar er1c  is currently offline er1c
Messages: 44
Registered: September 2008
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Member
thanks bart!
the feet made from a rubber band, cut up and attached to each leg to improve traction. now it walks fine, even on glass Smile
that was the quickest solution I can think of at the time.

the new elasto plastic material might be a suitable material for 3d printed versions of those feets, if it's rubbery enough...
will know soon, have an elasto print order due to arrive sometime next week.

E

[Updated on: Sat, 15 June 2013 13:35 UTC]


http://er1c3dp.wordpress.com/
Re: strandbeest turbine addon [message #70717 is a reply to message #69881 ] Sat, 29 June 2013 15:42 UTC Go to previous message
avatar er1c  is currently offline er1c
Messages: 44
Registered: September 2008
Go to my shop
Member
turbine wobble eliminated!
new video:
http://www.youtube.com/watch?v=cmO1UIEUu-E

the addon kit is now available from my shop:
http://www.shapeways.com/model/1182899/vertical-axis-turbine -strandbeest-addon.html

assembly instructions:
http://www.shapeways.com/forum/index.php?t=msg&goto=7071 5

[Updated on: Tue, 02 July 2013 12:15 UTC]


 
   
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