Modular filament spool shelf

This is a very minimal bracket to aid in building a standalone storage system for your filament spools

• each bracket uses just 77g of filament 
• fits on A1 and p1s models (256x256mm build plates)
• uses 7/8 inch wooden dowels found at most home improvement stored for around $5
• if only one shelf is needed (not multiple levels) you can use just three dowels and skip the 4th
• for every level of shelf after the first, two dowels and two brackets are needed
• fits refill filament and full spools
• consider a bracket to bridge the space of the dowels if extra support is needed in the middle 

will consider adding different diameter holes but unable to go over 7/8 inch otherwise print will not fit on 256x256mm buildplate 

any comments or suggestions are welcome 

thanks!