covalent bonding (zip-Datei)

This is a print file for a tactile graphic of covalent bondings. This is a kit for modelling covalent bonding. Electrons are represented by spheres, in pairs. The nucleus is represented as a cylinder/circle in the middle of the model. The models can be attached like puzzle pieces, demonstrating the ‘sharing’ of electrons that occurs in a covalent bond. Add a braille and print label to the back to identify the element. Recommend 6 x Hydrogens, 2 x Fluorines, 2 x Chlorines, 2 x Carbon and 1 x Oxygen to make a kit. Does not demonstrate double bonds. Printing instructions and tips: Layer height: 0.19; Infill: 10%; Support: Not needed; Material: PLA. The connections could be tight at first, try attaching and unattaching to smooth them out. This zip file includes: Oxygen-Covalent-bond.stl, Oxygen-Diagram.scad, Carbon-Covalent-bond.stl, Carbon-Diagram.scad, Chlorine-Covalent-bond.stl, Chlorine-Diagram.scad, Fluorine-Covalent-bond.stl, Fluorine-Diagram.scad, Hydrogen-Covalent-bond.stl and Hydrogen-Diagram.scad.