CGMC1702 CG Slotcars introduces a competition 3D printer MicroCarbon chassis designed as a replacement for the Slot.it Porsche GT1 Chassis. MicroCarbon is the most advanced 3D material available in slot car racing consisting of Micro-chopped carbon infused nylon. Stiffer and stronger than any 3D material in slotcars today. This chassis will accommodate any motor pod with a Slot.it footprint. The chassis includes two (2) MicroCarbon guides - one standard size and one larger for wood tracks. The MicroCarbon competition chassis is very stiff - the feeling has been described as "solid".