Hey folks–so I finally have gotten around to putting together the XL I got in December. Everything’s all set up to the squaring part. The instructions say that after loosening all the plate-to-rail screws, tighten the ones connecting the y-axis roller assemblies to the x-axis rail, keeping that rail at the front of the machine and touching the piece that extends across the front and to which the y-axis rails are connected on the left and right. The x-axis rail assembly should touch both the left and right side to be perpendicular to the y rails. It’s all fine until I tighten the right side screws. At that point a 1/4 inch gap appears on the left side between the left y-axis roller assembly and the piece that spans the front of the XL. Moving the gantry to the back, the same gap appears but on the right side rear. Measuring my diagonals with the gantry in the middle showed they were equal. But nevertheless I’m guessing that I need to use a racheting holddown or something to pull the left front and the right rear closer together, correct? Oh, and all the screws attaching the wasteboard are all still untightened as well.
It’s a matter of geometry where the out-of-squareness is, and random chance on how the blade was cutting and the extrusion was being held when it went through the saw. It can be a maddening, tail-chasing thing squaring up the machine (I lost track of how many times I rebuilt my SO1), but it should be a little squarer each time (and usually, if one isn’t as dense as I am, one learns a bit each time, making the next occasion easier / more profitable).
