Monoprice offers the Monoprice Maker Select 3D Printer v2 for $299.99. Coupon code "15MAKER" cuts it to $254.99. With free shipping, that's the lowest price we could find by $45, although we saw it for $34 less last November. It features a single-extrusion print head, heated aluminum build plate, USB, MicroSD slot, and maximum build volume of 7.9" x 7.9" x 7.1". Deal ends June 25.