This model is fully printable on an fdm 3d printer. I used a .4 mm nozzle and Cura for my slicer program. It is made for micro k'nex coaster track but I will have custom straight track soon. It requires 20 8x5x2.5mm bearings for the first car and 10 more for each additional car you print. Every part of this is held together with 3x10mm screws. Don't forget to use the wheel beads in the bearings to help hold them in place
The author marked this model as their own original creation.