Stratasys Ltd. will buy Boston-based 3-D printing firm GrabCAD Inc., the latest acquisition to boost the service offerings of the fast-growing manufacturer.

Terms weren't disclosed, though Stratasys said Tuesday it would pay cash and expects to close the deal this month.

Founded in Boston in 2010, GrabCAD has development offices in Estonia and the United Kingdom. It offers cloud-based tools that let engineers, designers and others share and manage 3-D CAD files and other design data.

Once the purchase is finalized, GrabCAD will become part of Stratasys' global products and technology group. GrabCAD's CEO and co-founder, Hardi Meybaum, is expected to lead GrabCAD within the group.

The purchase is the latest in a series for Stratasys, which operates dual headquarters in Eden Prairie and Rehovot, Israel.

The 3-D printing industry, which "prints" out parts and prototypes using computers and computer assisted software, has exploded in recent years as a quick and inexpensive way to make, test and revise parts and products. Small 3-D printing firms around the nation are increasingly being bought up as companies look to expand their capabilities.

Earlier this year, Stratasys acquired Solid Concepts and Harvest Technologies, which offer services related to manufacturing with 3-D printers. Last month, it announced that it is acquiring certain assets of its Germany-based reseller partner, Hafner's Buero GmbH.

The latest deal with GrabCAD is expected to increase Stratasys's service offerings and appeal to manufacturing customers. In a statement, CEO David Reis said that "GrabCAD provides Stratasys with a leading cloud-based collaboration platform for engineering teams to manage, share and view CAD files. By increasing the collaboration and accessibility of 3-D CAD files, we believe we can further accelerate the adoption of 3-D printing solutions and Stratasys' product offerings."

Stratasys' stock rose $2.55, or 2.1 percent, to $124.13 Tuesday.

Even without acquisitions, Stratasys has been growing quickly. After reporting its latest quarterly results last month, the company raised its revenue outlook by saying it now expects sales will grow up to 30 percent this year, not counting acquisitions. It has previously forecast 25 percent sales growth for the year.

Stratasys also raised its profit outlook, adjusted for one-time items, to a range of $2.25 to $2.35 per share from its previous range of $2.15 to $2.25 a share.

Dee DePass • 612-673-7725