Lego-Compatible Flat Car

thingiverse

This is a toy Flat Car that can be used with Lego Railways also known as L-Guage. It can be coupled to Lego trains.It has a magnetic coupler at each end that allows the magnet inside to flip to ensure proper polarity with adjacent coupler magnets. Insert one magnet into the slot of each of the two couplers. They are designed for a 10x2mm size button magnet. I ordered mine from Amazon "DIYMAG 120 Pcs 10x2 Premium Brushed Nickel Small Round Cylinder..." You may need to use a tool to push the magnet through the slot. It's intentionally designed to be tight to prevent the magnet from working its way back out. You can widen the slot, post-print, of course.There are two options for the wheel trucks. The ones that end in "_Pin" use a 2mm x 45 mm stainless steel round shaft axle rod that can be found on Amazon. The ones that do not end in "_Pin" simply use M3 screws. The _Pin version has a lower rolling resistance, but in my opinion creates slightly more noise than the M3... not a lot though. The decision of which to use might just be determined by what you already have or can easily get. In the end, both options work fine. There are also two mount frames to choose from: One has a skirt, the other does not.Plastic cement works best for glue.Order of assembly:Secure the wheels (4 per wheel truck) to two wheel truck frames using M3 screws. Tighten until the wheels do not turnout then back the screw out just enough until they turn freely. -OR- If you decided to go with the pin axle, insert the pin into the truck frame, and press the wheels onto the pin. Then, glue the sides of the truck frame on.Insert one magnet into the slot of each of the two couplers. They are designed for a 10x2mm size button magnet. I ordered mine from Amazon "DIYMAG 120 Pcs 10x2 Premium Brushed Nickel Small Round Cylinder..." You may need to use a tool to push the magnet through the slot. It's intentionally designed to be tight to prevent the magnet from working its way back out. You can widen the slot, post-print, of course.Secure couplers to frame using M3 screws.Secure the two wheel trucks to the car's frame with M3 screws.Glue the deck plates into the flatcar deck.Glue the flatcar deck to the mount frame.