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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I did not add weight, but I did have to print it twice. One of my printers produced a bit rougher finish on the gears, they didn't run as smoothly as it should. Printed the gearset on a better printer, that was the magic. I used 40% fill throughout, PLA. I did have to fiddle with the settings a bit to get the action centered and running free.