[steinra]

I took a quick look at the printer, it looks like it has a screw adjustment for the z-limit switch for hte zero process. That may need some adjusting.

The first layer should be smooshed a little bit against the glass.

As for speeds, in the printer and filament section

Print speeds should be the normals speeds you can run at. I found on my Prusa I can do 40 mm/s on perimeters without and issue and a 50 mm/s infill.

But, in the bottom of that box you will see a setting for bottom layer speed ratio. Set this to .5 or higher as it will slow the initial layer and not go to fast building that initial layer.

The other speed to watch is the travel speed. If the travel speed is too high and the current is not high enough to the stepper motors they will skip steps.

60 mm/s is what I have had good luck with.