Today I am gluing the 1/4" MDF parts together - 3 plys to achieve 3/4" thickness. Four of the parts in this design need to be constructed in this way and they make up most of the structural skeleton of the machine. They are, the base, the upper arms (3), the bearing rod supports (3), and the motor mounts (3). The timing of this task worked out today because several of the FDM parts require multiples which I am still printing.