[Alberg30] Masthead sheave

[chrishardy]

I think it would be easy to make a new one. buy some 1/2" 6061 t-6 or 
have the same outfit that makes the mast beam stock cut a 6.75" diameter 
pc. out of 1/2" stock with a 5/8" center hole maybe some lightening 
holes bush it with bronze 1/2" id bushing and chuck it in a wood or 
metal lathe to "freehand the groove.. I made a slew of delrin sheeves a 
couple years back for some rope stropped blocks for my small wood cutter 
and the delrin worked great not for wire halyard but delrin would be 
fine for rope.Delrin cuts fine at high speed on a wood lathe 1/2" delrin 
is readily available and could be even cut with a fly cutter on a drill 
press.....

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