Working in 2021 beta 3.  Trying to make a grid 16 * 28 meters spacing across by 34 * 15 meters spacing down.  SolidWorks keeps telling me maximum this or that.  I can't find anywhere that there is any sort of limitation.  I believe the modeling engine used to have a hard maximum of +/- 500 meters in any 3d coordinate, but I thought a recent version increased that.  So I tried values less than that, but still it's not having it.