This is the second-to-last installment of my ongoing series on building the MakerGear Mosaic 3D printer. This part covers assembly of the heated build platform, including installation and adjustment of the leveling plate, mounting the heating element and build surface, and making the associated electrical connections. Next week, I’ll be wrapping up the build by installing the electronics. And then, hopefully not too long thereafter, I’ll be printing a shot glass and celebrating my first 3D printer in the traditional fashion!