this is a set of handles for the beechcraft duke . there are 2 base pieces for the handles in the file 1 of them is tighter fit than the other. after the 1st print find which one you need then in the slicer separate the models and copy the base piece you need for the handles.
settings
.2 layers
.4 nozzle
5 walls
5 tops and bottoms "Giggidy"
15% triangle infill
pla or a cf for the handles and whatever you want for the knobs and base. i prefer pla+ for the base so the little tab doesnt snap off but if it does it is a snug fit so it wont matter.
print handles on their side. print base pieces with the handle opening down .

i used m4 flush head screws to connect the knobs 6mm or so