I've been a little frustrated with how little space is available in the Polymaker Dry Box for desiccant and at the same time noticing how much wasted space is in the middle of the spool when you have it on the spool hanger. So, I made a desiccant box that attaches to the spool hanger without any impact to the function of the box. I haven't seen anything like this so I thought I would share!