optical illusion because of the fillet on the edges.
Maybe it's just me, but that print looks like it has two different layer heights. :huh:
Its the bevel. Just a quick Thingiverse keychain to test
4 days ago I ordered my nozzle and a spool of filament from Zortrax.
Fed ex just delivered it this morning.
Yippee!!
Thanks Z
I have to say. I used an aftermarket as I had already ordered before I found out Z had them in stock and while the prints were nice, the Zortrax nozzle is much better. Maybe the innards of the aftermarket needs reamed as I know they are not all the same.
I used the Emergency nozzle (one with the nut style on end 
and the Aftermarket
And My trusted Zortrax nozzle (sorry its being used)
Out of all of them I like the prints from the Zortrax. While the others work and produce great prints, the regular Z nozzle is in my opinion the best.
Cheers