Pelican Centre Finder

pinshape

I designed an object that serves as a Centre finder, with the bottom jaw slightly raised to expose the top jaw and neck. Place this exposed area alongside a disc or log, then draw a line along the inside of the bottom jaw. This will create a straight line through the centre of the disc or log. Repeat this process after rotating the disc or log several times, marking a new line each time you turn it. The point where these lines intersect is the exact location of the centre.