RC 3D Printing Forum

I am having problems with LW-PLA while printing the Cessna 170. After a bit of experimenting with setting I have managed to get the weight of my prints to closely match that of the plans but I am getting random bubbles in the prints. I have tried print temp from 220 to 240 and flow rates from 30% to 50% but still get the random defects. My printer which is new to me as is printing which I have only been doing for around 2 months is an Ender 3 V2 with modes. The modes include a Swiss direct drive extruder and all metal hot end, a Bigtree motherboard & touch screen as well as steel rails on the X & Z asis. The filament is ESun and was newly opened around 2 weeks ago.

Why is the motor mount angled on the c170. hard to tell from this pic. But you can see the interior standoffs here, They are off by about 2.5mm left to right. And the motor mount itself, the mounting holes aren't centered.

I have problems laminating the 321 airliner plane. I have an Anycubic Kobra S1 printer that uses the Orca laminator, but the plane has Cura laminator settings. Can you help me because the Orca laminator is not the same as the Cura one and when I put in, for example, the 4th layer of the lower fuselage, the entire piece becomes solid from below. How can I solve this?