Double-helical gear Mechanical Model

Double-helical gear Model.Original Design by "karakurist"Holes had been widen to 2mm for M2 screw and holes had been added for M2 nut. Please prepare a 2mm drill bit in case, holes printed are too small. This is a free model from karakurist, he uses 1.8mm nails in his design.With the permission from owner of “karakurist”