So this is my first 3D printer... So i'm pretty sure this is user error... But everything is running smoothly... autohome works just fine... I go to lower the bed back down just to check the Z Axis, low and behold it makes a terrible high pitched metal on metal grinding noise... Both couplers down below are super tight, but it seems to be where the noise is originating from... HELP. I don't even know where to start on this
NEVERMIND... in continuing the commissioning ... the lithium grease made literally ALL the difference. Good talk guys.
The bed on my BB moved wonderfully easily with just the four smooth rods in place, once the two threaded rods were installed and even after the adjusting and bed levelling was done movement (under power) in the Z direction was squeaky. Again lithium grease worked. Must be the effect of driving the table up and down has an effect (which ideally should be adjusted for) and grease just smooths this out a little.
Exactly! Movement up and down during the commissioning phase seemed fine on all four bearing rods... but once i turned her on, I had this high pitched "metal on pewter" kind of sound. Lithium Grease on the screw rods completely resolved that issue.
