Mars Pro WILL NOT ZERO - HELP !

[cliffyk]

You need to disassemble the build plate ball mount as I described above and make sure it's not damaged and is clean. Reassemble with a tiny bit of grease, but first roudf off (or even flatten) the ends of the lock screws. If the build plate is moving when you snug up the screws (front one first) then you are making them too tight or the ridges on their ends are making the sleeve "walk about" as you are snugging them up.

I have done it this way since day one (October of 2019) and have never had a problem with the platen shifting as I snug up the screws.

Again, SNUG--NOT "tight"...

I jut last night/this morning printed this (a 9 hr print with 0.02 mm layers) at 68° F (20° C):


Used Elegoo's Standard Gray resin, no problems.

See my post here for more about disassembling the ball mount.