Peptide Backbone
thingiverse
These pieces are a scale-accurate representation of the peptide backbone of a protein. See this video for a demonstration: https://www.youtube.com/watch?v=1usemtIYe_s&lc=z22sgljh3qywe5kkyacdp43apn3hcrnjte0qxqfcvulw03c010c&feature=em-comments Most of the angles are fixed (as they are in an actual protein), but connecting the pieces with 1/8" set screws allows the user to simulate rotation about the phi and psi dihedral angles to make secondary structures like beta sheets and alpha helices. Note: These are the set screws that I use to connect the pieces: Alloy Steel Set Screw, Black Oxide Finish, Hex Socket Drive, Meets ASME B18.3/ASTM F912, 1/2" Length, #6-32 UNC Threads, Imported (Pack of 100) https://www.amazon.com/gp/product/B000FN3WUC/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
With this file you will be able to print Peptide Backbone with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Peptide Backbone.