Atlanta — The Home Depot is testing the 3D-printing waters.

The No. 1 home-improvement chain is trialing the category online and in a dozen stores as part of a pilot program with category leader MakerBot.

The stores, located in Manhattan, Chicago and California, have begun carrying the manufacturer’s Replicator line of desktop 3D printers and scanners. The assortment is showcased in specially designed kiosks and staffed by MakerBot personnel who will provide demonstrations and printed keepsakes to Home Depot customers.

The debut marks the first time that Home Depot has offered 3D printers for sale in its stores.