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Https://www.bourns.com/docs/product-datasheets/pec12r.pdf Bourns rotary encoder, PEC12R, without switch, vertical shaft, http://www.alps.com/prod/info/E/HTML/Encoder/Incremental/EC12E/EC12E1240405.html & http://cdn-reichelt.de/documents/datenblatt/F100/402097STEC12E08.PDF Alps rotary encoder, PEC09, with switch, circular holes, https://www.cui.com/product/resource/sj1-353xng.pdf TRS 3.5mm, vertical, Thonkiconn, PCB mount, retention spring instead of the plastic walls. Clf_wall = 2; left_col = 10 + center_adjust; right_col = width_mm - right_rib_thickness; // projection: make a 2d version v_wall(h=4, l=height-rail_clearance*2, th=right_rib_thickness); //outline of whole PCB? // cube([137.5, 97, 1], center=true); working_increment = working_height / (8+tolerance/3); // generally-useful spacing amount for vertical columns of stuff col_left = h_margin; col_right .

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