Center Seeker

The center seeker is an A4 sheet that I built myself to find the center of my cylinders. Some cylinders are larger than my mini-lathe's spindle and I can only draw the drill point.
You need to find the circle which best fit to the cylindrical piece, and cut away the others. After that, you need to drill the center with a sharp object. This PDF can be printed on a transparent sheet.
Click here to download it!