Base Mounts

//-- base mounts -- origen = box[x0,y0]
// (0) = posx | posy
// (1) = screwDiameter
// (2) = width
// (3) = height
// (4..7) = yappLeft / yappRight / yappFront / yappBack (one or more)
// (5) = { yappCenter }
baseMounts = [
[10, 3.5, 15, 3, yappRight]
, [shellLength-(10+15), 3.5, 15, 3, yappRight]
, [0, 5, shellLength, 7, yappLeft, yappCenter]
];