PLA nozzle:0.4 layer height:0.24 line width:0.42 please print using the recommended height and width, however for small parts it's better to got down to 0.16 layer heigh and 0.32 width. i tried to set tricky parts on correct printing orientation for best layers adhesion and fewer spport and the rest remains random so feel free to experiment. most parts doesn't need supports if your printer is tuned properly or if you're willing to spend a liitle time in post processing Instructions little pieces of filament is used to connect parts together. Add weight as nessesary in weight box that goes in the nose. piece of PLA can be glued to the box and passed through the instrument panel to easily adjust the balalnce after assembly if required. please glue the wings to the body as last thing after you made test fit and flight, the plane should be a little nose heavy and rudder adjusted as in images to function properly.