I built a filament drying oven mainly from leftover parts from my tronxy x5s, and it works great. I don’t care whether the heated bed in my drying oven is flat!
I’m noticing that PETG that I dried yesterday is already stringing a little bit today, and I’ve heard that if I start printing polycarbonate (as @Eclsnowman suggested to me on twitter) it’s advisable to print out of a dry box because it soaks up water so fast.
I noticed that a filament spool fits nicely into a bucket. I could see putting several filaments that I’m currently using into a bucket, making small holes in the side for the filament to come out, and having desiccant in the bucket to keep it dry. Any size bucket with a standard 12" top, with a gamma lid on the end, and a rod through the middle somehow to put the reels on, seems like a cheap and easy way to get a dry box. I could put it between my printers (once I get the second printer up and running) and have it feeding both printers simultaneously.
Am I missing something obvious to others here?