Thread: [NOT REQUIRED] Bahtinov mask for a 4" retractor.
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Old 18-06-2014, 01:18 PM
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pfitzgerald (Paul)
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Join Date: Jun 2013
Location: Melbourne
Posts: 625
Hi Nathan

You could use the information from the following website to make your own.

http://astrojargon.net/maskgen.aspx?...ookieSupport=1

Paul