How big did you make it and what are you using for a spindle? Depending on what you are doing, the dewalt has oodles of power but I feel the original flex shaft that we were using in the beggining can be more accurate. But what for any judgedgments until you have the machine level and the spoil board surfaced, than see how close your numbers are.
I really don’t know how accurate it can be. Anything I have ever cut fits. But I make things with normal machining tolerances built in and plan for the worst.
Keep me/us in the loop I would love to know how dialed in you can get it.