From the wasteboard to the X axis it is 7 inches. The axis are 30 inches. 25-35mm/s feedrate.
My all thread seems to have rougher spots where it doesn’t want to turn as well, if I make the gantry shorter it seems to run into one of those rough spots. That was another reason I was considering a lead screw – my first all thread came in the kit and I didn’t notice anything wrong with it when building everything, while the all threads at my local Home Depot visible aren’t perfectly straight across their length.