Hi. if you follow the advice from some of our more experienced members, you will find it difficult to build anything that ever could be as inaccurate as your current requirements!!! In practice I feel sure that when you have a machine that performs really well, you will end up doing taking on work that would benefit from greater precision. PLEASE, listen to what Irving, the "3 J's and others tell you and you will end up with a machine that performs well and will save you some of your hard earned cash. Good luck with your project. G.