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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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Just finished printing mine. It's not perfect, but it's definitely a good start. I chose this design over other filament spool holders because it doesn't require metal bearings, and I'm lazy and don't feel like hitting up the hardware store right now.

I've never tried to print wheels with pins and I was really curious to find out how well the wheels would turn. I was pleasantly surprised with the results. They don't work quite well enough for me, but I'm still very impressed that I can flick them and they complete several rotations.

I really like the look of the design and the small footprint. I also like that you can move the supports closer together and further apart to accommodate spools of varying widths.

I'm not a mechanical engineer, but this design seems like a good start to me and can probably be improved a lot with a few small tweaks.

Some of the comments seem kinda harsh. If it didn't work for you, that's a bummer, but I'm not sure what you expected from a free design that doesn't use any metal bearings. Other commenters have recommended small improvements and I'd love to see them turn them into actual designs that other people can try out.