Hi! Thank you for your response!

Printer is the Copymaster 300 V2 (remake of a Tenlog TL-D3)

Bed is calibrated, am sure of that.

No Bowden tube on this printer so I'll try reducing distance + increasing speed and temp.
I did have the retraction speed at 75mm/s previously but didn't really make much difference and still getting the gaps... I was hoping slowing it would help..


the gaps always seem to be in the back left and front left, really weird. Tried new nozzles of various sizes.
It is most obvious on circular prints.
Checked drafts in the room. nothing.