Deck with 4 barrels attached for switch machine --- N Scale

thingiverse

This is a deck with four 55-gallon barrels attached that can be placed right on top of the switch machine's slide. You can print this deck with or without a hole in the front, giving you options for your design. The front hole can be used instead of the peg for the control wire going to the turnout, making it less conspicuous than the peg on the slide. If you choose to use it, just cut the peg off the slide and fill the hole, or download the file to print a top slide without a high peg. If the small hole in the front of the deck doesn't print with your printer, simply drill a hole of the right size for your control wire .070 inches in from the end in the center. The deck with the barrels is pushed back and forth to activate the DPST slide switch under it and also throws the turnout via the control wire to it. The DPST switch can also change the polarity of the frog. More on the switch machine and how it operates can be found here: http://1fatgmc.com/RailRoad/3D-Printer/3D-Printer-Index.html