Small Air Stones for Hydroponic/Aquatic Systems

thingiverse

I created small air stones for common air pumps used in aquatic and hydroponic systems. I designed them using 1.75mm PETG material. When printing, I recommend orienting the air stones upright with their base facing downwards on the print bed to achieve optimal layer adhesion. For the rectangular designs, a raft helps ensure they stick firmly to the print bed. I haven't had time to test print and test the spherical air stone yet, so any feedback would be greatly appreciated. The other two designs have worked well for me, particularly the rectangular ones. You can easily secure the rectangular air stones in place at the bottom of a water reservoir using mounting tape or an adhesive of your choice. I used 50% infill when printing, but it's likely unnecessary.