Solidoodle offers its Solidoodle 4 Desktop 3D Printer, model no. SD-3DP-4, for $599 plus $54.40 for shipping. That's $27 below last week's mention and the lowest total price we've seen. (It's a current low by $46.) The printer allows you to create plastic parts up to 8x8x8", with a resolution up to 0.1mm.