About this 3D model

Small CD / DVD Label Guide to help attaching the label at the center of the Disk. (I know sometimes you get somekind like that with the CD / DVD Labels but I'm used to loose them...) The scad file has 3 Variables to edit the piece: 1. Inner diameter (should fit...) 2. Outer diameter - Edit it to make it fit for your disk label 3. Height (should be clear what that is)