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MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.

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It's not about cost or the complexity of assembly, it's more of a long-term benefit. I've built both a Sells and a Prusa (and now a Max), and the Sells had the only fire-and-forget solution for the Z rods. With two motors, i had to re-synchronize the rods countless times (mostly after trying out higher speeds and having just one motor skip), where the Sells' belt kept everything synchronized.