Doorknob Shim
thingiverse
Had a wobbly doorknob so I made a shim so it could be firmly tightened down to the door. Now no more wobble! The flange on my doorknob is 76mm, but it is pretty old so this may or may not fit current standard doorknobs. Full write up and details on my blog here: http://makeshiftengineer.com/fix-a-loose-doorknob-with-3d-printing/
Download Model from thingiverse
With this file you will be able to print Doorknob Shim 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 Doorknob Shim.