Shapeways Inc. is nearing a deal to go public through a merger with blank-check acquisition firm Galileo Acquisition Corp. (NYSE:GLEO) at a valuation of $410 million, including debt, according to people familiar with the matter. Shapeways would be the latest 3D printing company to agree to a deal to go public through a merger with a special purpose acquisition company (SPAC), following the likes of Desktop Metal Inc, Markforged and Velo3D.