Technology No. 4: DLP
What it is: Similar to SLA but uses digital light processors instead of a laser to cure the resin.
Featured Printer: Solidator DLP Desktop 3D Printer
Company/Founders: tangible engineering; President & CEO Tim Fischer
Printer Cost: $4,950
Software: Solidator Studio
Operating Systems: Windows XP/7/8, MAC OS X, Linux
Connectivity: Wireless LAN, Ethernet, USB
Solidator Materials: Solidator custom liquid plastic resin materials (similar to nail polish) with approximately the same value as PLA (about 85D), harder than ABS (about 75D), and harder than POM (about 80D). D stands for durometer, which is measure of hardness. Cost about $50 a liter, and prints approximately 28, eight-inch Eiffel Towers.