diy parts

Hi reefers, does anyone know what material is used to prevent magnets from slipping? I 3D printed a magnetic probe holder and the magnets will stay together but they will slip across the glass surface. It seems that most manufacturers (Neptune, AI, Ecotech) use a neoprene-like surface on both...

Hi Everyone & Happy Holidays, What do you need 3d designed for Christmas? I would like to make something for the reef community and make the files accessible on Thingiverse for Christmas. What is something that the entire reef keeping community could benefit from having access to the 3d...