Spool hanger

This is a spool hanging system to suspend your filaments spools between two pane. It uses 2 x 1/4-20 UNC x 1½" Lg. + nut + washer per hagner. My system uses the same hardware to fix the horizontal wood beam to my bookcase but it might vary depending to where you fit it. The wood piece is a 2 ¼" x ¾" thick board which would be your typical 1 x 3 lumber at the hardware store. Note that it can accomodate 1 x 3 or more lumber given that you have the space vertically.