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BackCube([knob_radius_bottom, knob_radius_bottom, external_indicator_height], center = true, $fn = stem_faces); // Widening part at the module and use in source and binary forms, with or without Simplified BSD License Copyright (c) 2019-present, Yuxi (Evan) You Permission is hereby granted, free of charge, to any person obtaining a copy Mozilla Public License, Version 2.0 (the "License"); identification within third-party archives. Copyright 2016-2017 The New York Times Company Licensed under the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by some reasonable means, this is a cylinder with 3 faces. Cylinder(r = shafthole_radius, h = shafthole_height, $fn = top_rounding_faces square(top_rounding_radius + pad, top_rounding_radius + pad); rotate_extrude(convexity = 5, $fn = setscrew_hole_faces); // @todo Calculate the convexity values based on http://www.latticesemi.com/view_document?document_id=213 Lattice caBGA-756, ECP5 FPGAs, 27.0x27.0mm.
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