To celebrate their enjoyment of the newly released Gravity Sketch app, which is a 3D sketching app for the iPad, the 3D printing service bureau Shapeways is launching the “Spin It to Win It!” contest. The contest requires designers to 3D model a unique spinning top using the Gravity Sketch app, three of which will ultimately be selected as the winners of Shapeways 3D printing credit. Read more at 3DPrint.com: https://3dprint.com/138195/shapeways...ketch-contest/