Weird issue with bottom layer
I've run into an issue today I've never seen before. I'm printing 40 copies of a small meeple on the Prusa Mini+ smooth sheet, 3mf file attached. Bottom infill is set to monotonic. Here's the weird pattern I'm seeing on the bottom:
The first layer in PrusaSlicer looks like this, however: all lines perfectly parallel
My knee jerk thought was some live Z issue but a) I just redid the live Z before I printed this and it looked great, and most importantly b) EACH and EVERY meeple looks like this. Absolutely identical. If it were live Z, I'd expect it to be random imperfections all over the place, not exactly the same pattern on each object.
Thoughts?
RE: Weird issue with bottom layer
Just a brief edit: I just printed a different model on this machine. Same settings, same filament. First layer came out beautifully.
RE: Weird issue with bottom layer
Another update: Printed them today on an Mk3S+ -- resulting in exactly the same pattern, so I excluded anything hardware related. I then tried printing at low first layer speed (10mm/s) and while not perfect, they come out a lot better. Would still like to see if there's there anything else I can do.