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Old 10-14-2016, 01:54 PM
Rex R Rex R is offline
Craftsman
 
Join Date: Feb 2011
Posts: 473
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for pdf files the print options, actual size or no scaling usually work for me. however when possible I like to grab the 'rocksim/open rocket' design file and use open rocket to print the fin templates(which include a scale so you can see if the templates are printing the correct size). HTH
Rex
*edit*
it would appear the fin root edge measures 2.25" for the 'oop astron mark II'.
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