Printed with Red and Gray COEX3D PETG and joined using JB Weld. This thing is fun! I've set up using the moderate running gear, 3S, 120A esc. Only two runs so far, but great fun! Great Design! Can't wait to build version 2.0! Only issues I had was warping which caused gaps in the seams. Make sure to use a brim or helper discs to keep the mating surfaces flat.