Hi all,

My printer is an anycubic i3 mega and I am using Hatchbox orange PLA.

When using a 0.2mm layer height with this model, I only saw one small gap per print sometimes but to try and accelerate the process. I tried a 0.3mm layer height. You can see the result with the photos.

IMG_20200325_002216.jpgIMG_20200325_002229.jpgIMG_20200325_002244.jpg

The inside of the box is full gap between the layer only on the exterior layer and on the outside of the box it's all clean, nothing.

I tried slowing the speed from 60mm/s to 35mm/s and also tried a higher temparature, from 200 degre C to 225. In comparison, I use 50mm/s with 0.2mm layer height
Those modification did improve the quality but not enough.

In the title, I say repeatable because no matter the speed, temparature and even the orientation on the bed. The gap always seems to be on the same layer.

I suspected a problem with the model but I have no issue printing with a 0.2mm layer height. I tried to print a calibration cube to see if the same error occurs.
The result of the calibration cube is that yes it did it again but only one time and a really small one but I still think it counts.

What do you think is my problem, I would like to know what you think.