Wanhao i3 Filament Guide for enclosures

thingiverse

I recently upgraded my spool holder, realizing that the original design wasn't strong enough and needed better positioning to fit seamlessly within my printer enclosure. I'm fairly certain there are two usable sets of holes, although I'm not entirely convinced you can utilize the front 2. The front hole appears vestigial unless installed with a single screw - a configuration I successfully tested with an earlier prototype.