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  1. 09-02-2019 #14
    feldah's Avatar
    Lives in Berlin, Germany.
    feldah
    Last Activity: 23-11-2022 Has been a member for 6-7 years. Has a total post count of 39. Received thanks 6 times, giving thanks to others 13 times.
    Quote Originally Posted by mekanik View Post
    Johns post gives the weight for the required tensioning of the wire, ie 75% of breaking strain. wire is fixed solid @ one end and run via a pulley @ the other with the weight attached. Had a look on ebay and the USB microscopes are as cheap as chips.
    Regards
    Mike
    But in the article I am referring to they recommend to use sloted adjustment nuts. And a winch instead of weights. I mean from this 150lb wire 75% is a lot of force pulling on the pulley. Also I would expect that a pulley has a lot of play.

    Sure for the usb microscope I am not arguing because of the price but the quality. As I am expecting it to have a really bad image sensor for that price.

    But I am still trying to fully understand the method they are using in the article.
    http://fwrc.msstate.edu/southernsaw/alignment1.pdf
    Last edited by feldah; 09-02-2019 at 04:39 PM.
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