Thread: Tumbling blocks question
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Old 03-23-2012, 10:11 AM
  #11  
Krisb
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Location: Asheville, previously Lake Vermilion, Tarpon Springs, Duluth, St Paul, Soudan
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You can get the special ruler, or you can use any 60 degree ruler, or you can use the 60 degree line on a regular ruler. They will all work.
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