Our S5 has started to have the problem that it fails to raise the build platform during it's initialization, when I start a print.
The build-plate reaches about half-way to the top when it starts making an unpleasant noise. I assume, that it is because the z-axis stepper motor is skipping steps.
If I help the S5 by applying a little bit of upwards pressure to the build plate, with my hand, it seem to go up without problems.
I have been using our S5 pro bundle printer for almost a year now, printing about 20h pr. week without any normal problems before now.
So, I thought that the lead-screw might have some dirt on it or were insufficiently lubricated, so I tried to wipe/clean it slightly with some paper cloth and applied some of the supplied grease to the lead-screw and the two guide shafts. It might helped a little bit, but the printer still fails sometimes.
Any suggestions on what to do about this?