Bob Turan's blog

Bearings for kinetic sculptures

Bob Turan - Monday, June 29, 2009 - 1:47pm
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I have done some small kinetic pieces (mostly using bicycle bearings) and now I need to scale one up. I'm not sure if I should switch to a more substantial (weatherproof) bearing system. Any suggestio


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Rust promoter

Bob Turan - Friday, April 3, 2009 - 11:12am
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It's probably been discussed, but I can't find the thread. I'm looking for advice on promoting rust on mild steel to make new steel more closely match rusted steel. One of my sculptures uses weathered (well rusted) salvaged steel for most of it, and a few pieces of new 11GA mild steel scrap.


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