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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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This made sense to me at first and I printed several new smaller pins (and some thicker), but I found that with the smaller pins, the gears have more leeway and wobble a bit more and don't always sit flush with the center (and it didn't seem to help keep the gears closer together). When I put the original pins back in, I realized the gears sit flush with the center and don't have much leeway, but once again, they aren't close enough.