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What is the "plunge in square" method CheersRich
What is the "plunge in square" method
Finally - am I right in believing that I can't use the thread position indicator when running the 33 or 34 tooth gears unless U do the trick about setting a saddle stop position and re-engaging the half nuts with the saddle held against the stop or similar?
You should read this post to review another very workable method:http://www.modelenginemaker.com/index.php/topic,5237.0.html
Not to be argumentive but your method makes the unstated asumption that for a fixed position of the carrage that there is a SINGLE position that the "1" will come up for any rotation of the spindle and gear train