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Just discovered Wanhao filament spools do not play well with my UM2+

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Ultimaker-compatible spool hubs have a smooth 52mm diameter hole - Wanhao holes are also 52mm overall but are full of struts and definitely do not fit on the UM2+ spool holder.

Before I start destroying Wanhao spools, any alternative suggestions gratefully appreciated.

I don't have an empty UM2+ spool handy which would be the simplest way.


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