Very low cost on-board humidity control system

thingiverse

For a "Dollar store humidity excluder", place a large Ziploc freezer bag over the filament reel as demonstrated in the accompanying picture. Push several silica gel desiccant bags into the reel hub. Secure the zipper as much as possible, leaving a small unzipped area where the filament exits. Position a couple of sachets of dessicant near the unzipped portion of the bag at the base of the spool holder support. This solution is not perfect for addressing high humidity in the printer environment, but it's affordable. The build plate clip secures the glass bed to the Y carriage, eliminating the need for bulldog clamps. I dislike bulldog clamps. The mouth of the clip is tapered at both ends, enabling the clip to slide onto the carriage from the corner. I printed mine slowly using yellow TPU with 50% infill. My PETg clips were printed at 100% infill, utilizing a hotend temperature of 245C and an 80C bed temperature. I have installed several of these clips on my CR10S printer, but it also runs smoothly with only three on each end. This clip is not the most effective solution, but I needed to share the STL file in order to post the Ziploc humidity chamber.