This is a great spool holder that has met all my needs. Thank you.
Boy was I ignorant to set infill to 100%. This was one of my first prints and I wasn't sure of the strength of PLA. I estimate I wasted 1/3 of my 1 kilo roll. Live and learn! Hopefully this will help others not to waste their filament/money. 50% infill may be overkill too.