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General Metalworking - All aspects of working with metal.
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Posted by on June 18, 2008, 11:53 am
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I want to make a wind sculpture of the variety what pivot around a
vertical axle as the wind blows. Examples of such sculptures are
shown here:
http://www.copperwindsculptures.com/
The issue I have to overcome is the ground mount - mounting it to the
ground in such a way that it can rotate.
The art part of the project is not a problem - but the mechanics
involved to get the sculpture to rotate on an exis is a problem!
I have found mail order suppliers of tubing and bearings, however, as
this is a bit new for me, I am dis-inclined to simply order materials
without more knowledge.
Although not fixed on the idea I was thinking of something like the
following:
Narrow pole cemented vertically into ground. Rotating Sculpture which
is on wider pole is slipped over narrow pole. Suitible bearings are
in place between narrow pole and wider pole so that friction is
negligable.
Anyone have any ideas:
a) Supplier of such poles so I don't need to design it.
b) Develope knowledge so I know what tubes to order, which bearings,
and mounting brackets so the whole thing goes together.
I would be greatful for any ideas.
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Posted by Leo Lichtman on June 18, 2008, 12:29 pm
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> a) Supplier of such poles so I don't need to design it.
> b) Develope knowledge so I know what tubes to order, which bearings,
> and mounting brackets so the whole thing goes together.
>
> I would be greatful for any ideas.
^^^^^^^^^^^^^^^^^^^
Go to a wrecking yard--oh, sorry--auto dismantler, and buy an axle with the
wheel bearings and brake drum intact. You can stand the axle in the ground
in concrete and either mount or hang the sculpture from the brake drum. If
you use a front axle, of course, you will have to weld the steering linkage
so the spindle stays vertical.
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Posted by David Billington on June 18, 2008, 12:41 pm
Please log in for more thread options Leo Lichtman wrote:
>
>> a) Supplier of such poles so I don't need to design it.
>> b) Develope knowledge so I know what tubes to order, which bearings,
>> and mounting brackets so the whole thing goes together.
>>
>> I would be greatful for any ideas.
>>
> ^^^^^^^^^^^^^^^^^^^
> Go to a wrecking yard--oh, sorry--auto dismantler, and buy an axle with the
> wheel bearings and brake drum intact. You can stand the axle in the ground
> in concrete and either mount or hang the sculpture from the brake drum. If
> you use a front axle, of course, you will have to weld the steering linkage
> so the spindle stays vertical.
>
>
>
Good idea, a number of FWD cars have bolt on rear stubaxles, VW for sure
so you could bolt that to a tube/pipe of the required length with a
suitable plate welded to the end.
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Posted by Larry Jaques on June 18, 2008, 1:33 pm
Please log in for more thread options On Wed, 18 Jun 2008 16:29:25 GMT, with neither quill nor qualm, "Leo
>
>> a) Supplier of such poles so I don't need to design it.
>> b) Develope knowledge so I know what tubes to order, which bearings,
>> and mounting brackets so the whole thing goes together.
>>
>> I would be greatful for any ideas.
>^^^^^^^^^^^^^^^^^^^
>Go to a wrecking yard--oh, sorry--auto dismantler, and buy an axle with the
>wheel bearings and brake drum intact. You can stand the axle in the ground
>in concrete and either mount or hang the sculpture from the brake drum. If
>you use a front axle, of course, you will have to weld the steering linkage
>so the spindle stays vertical.
I was thinking about that, too, but he could simply set the back of th
spindle and steering arm into the cement base. It could go a decade
without lubing, I reckon.
--
The only way not to think about money is to have a great deal of it.
-- Edith Wharton
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Posted by DoN. Nichols on June 19, 2008, 12:21 am
Please log in for more thread options >
>> a) Supplier of such poles so I don't need to design it.
>> b) Develope knowledge so I know what tubes to order, which bearings,
>> and mounting brackets so the whole thing goes together.
>>
>> I would be greatful for any ideas.
> ^^^^^^^^^^^^^^^^^^^
> Go to a wrecking yard--oh, sorry--auto dismantler, and buy an axle with the
> wheel bearings and brake drum intact. You can stand the axle in the ground
> in concrete and either mount or hang the sculpture from the brake drum. If
> you use a front axle, of course, you will have to weld the steering linkage
> so the spindle stays vertical.
And with the rear axle, you'll probably want to remove the other
half axle and shaft, and the input pinion so you don't have them
thrashing around in the ground. You'll probably want to keep the spider
in place to act as a guide for the lower end of the half axle shaft.
Not sure what you will need to do to keep water out of it,
especially if you are setting it up where there is a high water table.
Good Luck
DoN.
--
(too) near Washington D.C. | http://www.d-and-d.com/dnichols/DoN.html
--- Black Holes are where God is dividing by zero ---
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> b) Develope knowledge so I know what tubes to order, which bearings,
> and mounting brackets so the whole thing goes together.
>
> I would be greatful for any ideas.