I am looking at purchasing a 4848 Pro, but I have concerns about squaring the gantry. The CNCRP website speaks to squaring the gantry, and suggests adjusting the homing sensors until the gantry is square. I'm not a fan of this technique. If you uses homing sensors, you are essentially forcing the gantry to give square readings when measuring diagonals, but something is necessarily out of wack somewhere. As they say, 'somethings gotta give.' If it help in figuring out where I'm coming from, I had the gantry on my present machine squared to less than .001", before I recently took it apart (and that's a whole other story).
In looking through the assembly instructions, it does not appear that there is much, if any, adjustability. On the other hand, I don't find any discussions about gantry squaring, when searching the web, including here. To me, it looks like (1) folks are just using the homing switches and calling it good, or (2) there is enough play to get the gantry squared mechanically, so no one feels the need to complain or comment on it.
What's the real scoop? Is there mechanical adjustability? If not, has anyone found a workaround, like modifying the interface plate (e.g., slotting the mounting holes) and using shims on the joining plate?
Thank you in advance for your help!
Gary