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Sprocket sphere
 

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Nick Payne
Joined: 10 Jan 2004
Posts: 2625
Location: Canberra, Australia

3/5/17 7:45 PM

Sprocket sphere

A while ago a friend asked me to keep any old cassettes I was replacing, as he was fooling around with welding the cogs together into various shapes. He's also been collecting old cassettes from several local bike shops. Here's one of the results - a sphere hanging in the garden. He's also made a couple of nice desk lamps by welding the cogs into a flat sheet, then cutting the sheet into rectangles and making lampshades by putting the rectangles behind translucent perspex.

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dddd
Joined: 11 Jan 2004
Posts: 3345
Location: NorCal

3/6/17 12:00 AM

I'll take a guess that he's using a concave semi-sphere form to position the cogs before applying welds using a long, slender welding tip of some sort.
As the sphere nears 360 degrees of continuity, the long welding tip can be poked through the holes in the cogs to apply the weld to the interior surfaces, for the cleanest exterior look.
Having various cog sizes allows achieving a more continuous surface.

He's found a use for all those discarded cogs, now to find a use for this thing...

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daddy-o
Joined: 12 Apr 2004
Posts: 3307
Location: Springfield

3/7/17 7:54 AM

Make this a sticky-poll thread. <jk>

Is art useful?

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PLee
Joined: 08 Dec 2003
Posts: 3712
Location: Brooklyn, NY

3/7/17 9:22 AM

Define "useful".

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Matthew Currie
Joined: 11 Jan 2004
Posts: 800
Location: Vermont

3/7/17 10:17 AM

Well, I like it.

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Sparky
Joined: 08 Dec 2003
Posts: 19068
Location: PDX

3/7/17 10:47 AM

I also like it. I would like it in my back yard or hanging. I bet there are a few of those here the the Rose/Bike City. I have seen lots of bike art here, and I think something similar to that. Although I do not recall where or when. ;)

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daddy-o
Joined: 12 Apr 2004
Posts: 3307
Location: Springfield

3/7/17 3:35 PM

Define "useful".

No way!

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Sparky
Joined: 08 Dec 2003
Posts: 19068
Location: PDX

3/7/17 5:31 PM

"Define "useful".

"No way!"

LOL

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Nick Payne
Joined: 10 Jan 2004
Posts: 2625
Location: Canberra, Australia

3/7/17 6:55 PM

Well, we bought the sphere off him and it's hanging in our garden.

Here's another example of recycled bicycle art: for the last couple of years the town of Lismore in northern New South Wales has put up a christmas tree in the town centre that's made from old bikes:



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Sparky
Joined: 08 Dec 2003
Posts: 19068
Location: PDX

3/7/17 7:04 PM

"Well, we bought the sphere off him and it's hanging in our garden. "

Cool!!

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dddd
Joined: 11 Jan 2004
Posts: 3345
Location: NorCal

3/8/17 12:16 AM

Our club's preferred meeting place and coffee stop has an elaborate backyard garden, all kinds of plants, a pond and numerous animal "statues", dogs, etc., crafted from junkyard steel scrap. Washers become eyes, a suspension spring can be a neck, I could go on and on. They sell for pretty good money!

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Nick Payne
Joined: 10 Jan 2004
Posts: 2625
Location: Canberra, Australia

3/8/17 1:05 AM

There's a sculptor on the NSW south coast named Richard Moffat who creates lots of his sculptures from scrap metal. Here's one that's been installed locally at a lookout on top of a hill - a wedge-tailed eagle on its nest. To give it some scale, the eagle is a least a metre tall:

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