MicroFocuser 1:4 Kit for Crayford focuser
thingiverse
This is a simple MicroFocuser for a Crayford focuser. This is a sheaper solution to avoid buying the LACERTA microfocus unit (1:10). This DIY system work with a 1:4 reduction by friction with two o-rings against the crayford scroll wheel. Components : - 3 printed parts (support, scroll wheel and a spacer) - 2 bearings 6x19x6mm (626-2RS) : https://www.amazon.fr/gp/product/B071JTPQN6/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 - 1 aluminum rod Ø6mm Length : 45mm - A few cyanoacrylate glue for the assembly of Wheel on rod. - 2 o-rings (Din=10mm Dout=15mm) - Non-slip Rubber Grip for the scroll wheel
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