During testing it is clear something is awry with my X axis motion. Motion in the X+ direction is smooth all the way to 4000 mm/min. X- is smooth until 3200 mm/min. Anything faster and it chatters and skips steps.
The belt is as loose as is possible. It is pretty tight (the motor cannot be adjusted any looser), but it seems to move smoothly and without any hitches.
I lubed the rods, torqued it quite a bit to align the bushings, and no help.
I also tried the trim pot to increase the voltage, but it had no positive influence.
Anyone else seen similar problems? It printed the 20mm cube without issues, and so I may just adopt a "wait and see" attitude with this one.
Brad