MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
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I'm going to use a drive shaft bought off of eBay. Look up item number 152808938160. It has a 4mm inner shaft and a 9.5mm sleeve. Both are stainless steel. Comes with a universal coupler too. You have to specify what size motor shaft when ordering. Of course, I won't be using the propeller that came with it.