In this video as part of The Motley Fool's "Ask a Fool" series, Fool industrials analyst Blake Bos takes a question from a Fool reader, who asks: "Which 3-D printing company will be the best investment for the long haul: Stratasys (NASDAQ:SSYS) or 3D Systems (NYSE:DDD)?"

Diving into the details
The 3-D printing sector, while exciting, can be quite intimidating for investors to tackle. There's talk of it changing manufacturing as we know it today, and then warnings the sector is in a bubble. Should investors steer clear, invest in one company, or invest in all of them?

In the video below, Blake gives investors a brief overview of the 3-D printing landscape, and then delves into Stratasys' and 3D Systems' business strategies. Once investors are familiar with the two companies' very different strategies, he'll focus on helping investors decide which one they think is better. Lastly, Blake will choose between Stratasys and 3D Systems, and also give some valuable tips on how to approach this hot sector today.

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.