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  #38  
Old 17-05-10, 23:22
Wayne Henderson Wayne Henderson is offline
Member since 1998
 
Join Date: Feb 2003
Location: Western Australia
Posts: 471
Default track tech

Hey Alex.
There is a seperate mould for both pin holes. The pin holes were cast in sand and placed on the alloy frame. Metal goes in, sand falls out, there's the hole.
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