What is a Plaque? 01 October 2020 14:41 Updated What is a Plaque? A plaque is just the sample as shown in the image below. By any means this is not a spool. Related articles What is the size of the spools? Samples COVID-19 How to print with DPA-100 PLA Economy compatible with Ultimaker 3, Ultimaker 3s, Ultimaker 5s?