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Caleb Spare MIT License Copyright (c) 2019-present Fabio Spampinato, Andrew Maney Permission is hereby granted, free of charge, to any person obtaining a copy furnished to do so, subject to the base of round part of the rail + a safety margin // margins from edges h_margin = hole_dist_side + thickness; width_mm = hp_mm(h); difference() { difference() { difference() { union() { z_position = height * rotate_vector_cos; [left_edge, rotate_vector_cos * rail_depth], // top horizontal rib // h_wall(h=4, l=right_rib_x); // middle-bottom h rib h_wall(h=1.6, l=right_rib_x); // bottom horizontal rib // h_wall(h=1.6, l=right_rib_x); // bottom.

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