Index: do214.scad =================================================================== --- do214.scad (nonexistent) +++ do214.scad (revision 32589) @@ -0,0 +1,104 @@ +// Parametric model for DO214 AA/AB/AC packages +// +// Copyright (C) 2020 Alexey Kosilin +// +// File distribution license: +// This library is free software; you can redistribute it and/or +// modify it under the terms of the GNU Lesser General Public +// License as published by the Free Software Foundation; either +// version 2.1 of the License, or (at your option) any later version. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public +// License along with this library; if not, write to the Free Software +// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA +// +// The above distribution license applies when the file is distributed as a +// stand alone model file or as part of a library, in both cases intended +// for reuse combined by the user with other openscad scripts. +// +// Use license: +// as a special exception, the content of the file may be +// embedded in an openscad script that represents a printed circuit board, +// for example when a board is exported by pcb-rnd. In such use case, +// the content of this file may be copied into the resulting board file +// with or without modifications, without affecting the board file's license +// in any way. +// + +module part_do214 (var) +{ + module impl (L, W, H, P, Tw, Th) + { + delta = 1e-3 ; + $fn = 30 ; + + module lead (P, Tw, Th) + color ([0.9, 0.9, 0.9]) + translate ([-delta, -Tw/2, -delta]) + { + translate ([0.3/2, 0, 0.3/2]) + rotate ([-90, 0, 0]) + cylinder (d = 0.3, h = Tw) ; + + translate ([0.3/2, 0, Th]) + rotate ([-90, 0, 0]) + cylinder (d = 0.3, h = Tw) ; + + translate ([0, 0, 0.3/2]) + cube ([0.3, Tw, Th - 0.3/2]) ; + + translate ([0.3/2, 0, 0]) + cube ([3*P - 0.3/2, Tw, 0.3]) ; + + translate ([0.3/2, 0, Th - 0.3/2]) + cube ([2*P - 0.3/2, Tw, 0.3]) ; + } + + module case() + hull() + { + translate ([0, 0, H/2]) + cube ([L*0.95, W*0.95, H], center = true) ; + + translate ([0, 0, Th]) + cube ([L, W, delta], center = true) ; + } + + color ([0.5, 0.5, 0.5]) + intersection() + { + translate ([-L/3, -5, -5]) + cube ([0.5, 10, 10]) ; + + scale (1.002) + case() ; + } + + color ([0.3, 0.3, 0.3]) + case() ; + + translate ([-L/2-P, 0, 0]) + lead (P, Tw, Th) ; + + translate ([L/2+P, 0, 0]) + mirror ([1, 0, 0]) + lead (P, Tw, Th) ; + } + + variants = [ "AA", "AB", "AC" ] ; + + L = [ 4.57, 7.11, 4.6 ] ; + W = [ 3.94, 6.22, 2.90 ] ; + H = [ 2.5, 2.62, 2.45 ] ; + Tw = [ 2.21, 3.2, 1.65 ] ; + Tl = [ 5.59, 8.13, 5.35 ] ; + + idx = search ([var], variants)[0] ; + + impl (L[idx], W[idx], H[idx], (Tl[idx]-L[idx]) / 2, Tw[idx], H[idx]/2) ; +}