Join Date: Apr 2012
Location: from Carbonear Newfoundland, but now living in Fort McMurray Alberta.
sawdustfactory is right. the only way to get close enough to centre is cross corners marking. But if you got a thickness planner " for small projects " or depending on the size of thickness planner you use. measure the smallest deminsions, and gradually plane the largest sides, to reach your smallest size, flipping over side to side, try not to remove all the material from oneside, keep planning until you reach the measurement you want, then slowly plane four sides, 1/64" at a time, just to smooth all sides. then cross corner mark. now you are perfectly square and dead centre.( Hint ), once you are square and if you are for example turning spindles, it is safer for you to chafer four sides. your chisel will not dig into your wood, and spoil your work piece. it is petter to have eight sides then four sides. Chafer only needs to be around 1/2". Hope some of this info works for you. Good luck with your projects and be safe.