I was reading the suggestions from last week about the different modifications to the basic Lehman design. Up until 
now I have been using the knife-edge method, but I want to switch. What if I was to string a thin guitar string between my two 
upright poles, remove the exacto blade from my boom and turn it sideways so that the guitar string fits in the slot? Suggestion
s/criticisms wanted.
 
-Daniel Stevens

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