Please note that this version 5 model of the Danish MZ Class locomotive uses a special element designed by Steve Barile. This element is called a brick with 3 beveled grooves. On this MZ locomotive, this special element is used for the ribbed side panels in black. Versions 1 through 4 have used an official LEGO element called a 1x2 brick with grille in this capacity. Thanks, Steve, for sending me the LDraw .dat files for you custom brick with 3 beveled grooves. -James Mathis: thakius@nmt.edu