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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In description, each frame has declared inner diameter. I do not have any of these small props so I went by info I got online or by requests here on Thingiverse or RCgroups. If you have a prop that does not fit any of the already designed frames, just make exact measurement of it and let me know - I will design proper size frame. Haven’t had time lately to work on these frames, I will start again this week so if you have any request or suggestion on how you would improve design please share :)