Xometry realizes it’s up to them to make life easier for their customers. When it comes to ordering a wide variety of 3D printed parts with standard and custom finishes, Xometry seems themselves as a site for ecommerce rather an a standard 3D printing service bureau. They use a range of methods to produce parts, including SLA and SLS 3D printing, polyjet 3D printing, and CNC machining. Read more about the company's business model in the full article: http://3dprint.com/76617/xometry-3d-print-custom-parts/