3D Systems has filed a lawsuit against both Formlabs and Kickstarter pertaining to a printer project displayed on the crowdsourcing site. 3D Systems believes their patent involving stereolithography, a process “directing ultraviolet laser across a liquid synthetic substance to cause a thin layer to solidify” was infringed upon. Formlabs had received over 2,000 backers and $2.9 million for its 3D printer on Kickstarter before the claim had come to light. [Source BBC]