
The design of this filament spool holder/spool looked promising, at least until I assembled it. The main design flaw here is that each of the four bearing sides is individually adjustable in width. If the two sides are unequal, get ready for a rockin' world. I'm not going to spend 10 minutes aligning each of the four sides every time I want to put a spool on top of a spool. Not worth the money in my opinion. Doesn't even roll that well wahhh waaaaaa. HAPPEN.

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