Fixing nubs

[Dweldz 4]

I am getting 'nubs" in various places on prints.

What is the official name for these by the way?

If I print the same model in the same bed location and orientation I get the nubs in the same places from print to print.

I got net fab and examined the STL model for flaws the model showed it was good.

I ran the check for flaws and not a single one came up.

I couldn't see any thing in the mesh that was protruding in the nub area.

I haven't gone through and tighten belts as they seem to be just as tight as the day I got the machine.

Any wisdom would be appreciated.

Thanks

[darkdvd 977]

Search "z-scar" in the forum

[yellowshark 153]

In the past I have found the following to help with this

run the walls at 1.6

slow down, say 30mm/s

set your speeds the same, so infill/inner speed/outer speed as all 0 and print speed 30

run as cool as you can. I was testing a new filament today and started at a temp of 200 which looked fine but I dialled it down in steps to 180 which also looked fine and I chose 185

[Dweldz 4]

Thank you both.

More experimenting is in order!