Comments sought on new build: A CNC Router for RC Gliders and Planes

[njhussey]

Don't forget my machine will be mounted at 75° from horizontal (eventually!) so before the gantry would have collected all the crap being thrown up by the cutter. This is only going to be a temporary gantry (famous last words!) as I'll use it to cut the aluminium parts for the "proper" gantry from the 800x1000x20 sheet of Ali I have lying around gathering dust, which will then be enclosed to protect the ball screw.

I've put the ball screws there to protect them from flying crap as much as possible from the cutter as they are hidden behind the rails where they are. They are only 45mm below the X axis carriages so I'm not sure that it would make any real noticeable difference in terms of performance?