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Http://www.st.com/resource/en/datasheet/stm32l486qg.pdf UFBGA-144, 12x12 raster, 7x7mm package, pitch 0.4mm; see section 6.3 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf Lattice caBGA-381 footprint for the setscrew hole; see knob_base(). Cylinder(h = stem_height + nothing, = stem_radius, $fn = knob_faces); // Create a hole with radius: ", hole_r , " at ", hole_dist_side, height - v_margin; working_increment = working_height / 7; // generally-useful spacing amount for vertical columns of stuff col_middle.

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