Molecular modeling fridge magnet set

thingiverse

Molecular Modeling Fridge Magnet Set Molecules are groups of atoms that bond together, ranging from small molecules with just two atoms to massive ones like DNA, which contains billions of atoms. Chemistry modeling sets help us visualize these molecules in meaningful ways. This kit is designed for 3D printing and flat surface display, much like we draw molecules on paper. By inserting small magnets, you can attach your models to a fridge or any other magnetic surface. With just a few dozen atom pieces, the number of unique molecules you can make is staggering, totaling in the millions. The shape or geometry of the molecule also depends on the hybridization of its atoms within it. For example, carbon with sp3 hybridization (as in methane) can have bonds to 4 neighboring atoms while carbon with sp2 hybridization (as in benzene) can only have 3. As this modeling set is restricted in 2D, bond angles are not necessarily accurate in their 3D sense. For the atom types we have: Hydrogen: H_2D Carbon: Csp3_square_2D: sp3 carbon that can make 4 bonds in square geometry Csp3_methyl_2D: sp3 carbon distorted for modeling methyl side-chains Cps2_2D: sp2 carbon that can make 3 bonds, found in benzene and alkenes Cps2_BC_L_2D: special bicyclic sp2 carbon that can make 3 bonds, found in the intersection of six and five-membered rings as found in caffeine (Left orientation) Cps2_BC_R_2D: special bicyclic sp2 carbon that can make 3 bonds, found in the intersection of six and five-membered rings as found in caffeine (Right orientation) Csp2_5C_2D: sp2 cyclic carbon found in 5-membered rings such as furan Csp_2D: sp carbon that can make 2 bonds as found in carbon dioxide and alkynes Nitrogen: Nsp2_2D: sp2 nitrogen that makes 3 bonds (can also be used for sp3 N in ammonia) Nsp2_pyridine_2D: sp2 nitrogen found in pyridine Nsp2_5C_imidazole_2D: sp2 nitrogen in imidazole with lone pair Nsp2_5C_2D: sp2 nitrogen in imidazole with hydrogen bonded Nsp_2D: sp nitrogen as in atmospheric N2 Oxygen: Osp3_2D: sp3 oxygen found in hydroxyl groups and water (can also be used for furan) Osp2_2D: sp2 oxygen that can make 2 bonds, found in carbonyl groups Print Settings: Printer Brand: Zortrax Printer: Zortrax M200 Resolution: 0.09mm Infill: 10% Notes: Print the atom pieces with the flat surface down. Try to print with the highest resolution possible to give the best finish. The atom pieces should snap together cleanly. To break the bonds, try bending gently from the flat side. Post-Printing: Turning your model into a fridge-magnet model. To make fridge magnets, you will need: 3 mm diameter cylindrical neodymium magnets either 1 or 2 mm long (one for each "fridge magnet" atom; easy to buy cheap sets of 100 or more online) A 3mm drill bit Some hobby glue to stick the magnets in place. The central hole on the flat side of each atom piece has a 3mm diameter and should snugly fit one small magnet just by pushing the magnet into the hole. However, due to differences in print quality, you may have difficulty doing this. If the hole is too small, gently drill out the hole twirling the drill bit with your fingers. If you find that when you put the atom on the fridge and the magnet falls out, you may want to use a drop of glue in the hole to hold the magnet in place. Make sure to let the glue dry! You don't necessarily need magnets for every atom for the molecule to stick to the fridge. Good luck!