I want to emphasize something else here along with what Andrew said - if you are printing off parts 1:1 what the design was for an aluminum part, you’re probably going to have a bad time. Additionally, doing this is really ignoring the benefits of 3D printing. If you 3D print a part that you can otherwise probably get machined out of aluminum relatively quickly, are you really gaining anything worthwhile by printing? Design your 3D printed parts to take advantage of additive manufacturing - add strength by adding material and geometry which would otherwise be difficult to get machined. If that fails, then you need to rethink your material (3D printed or otherwise).
It’s kind of like when teams first start making sheetmetal parts - if you aren’t taking advantage of the strengthening techniques sheetmetal fabrication has to offer, what is the point of using sheetmetal instead of getting some plate and tubing routed at your shop?
Along with the part design itself, keep in mind that construction techniques and assembly techniques also play into strength - IE tabbed construction + epoxy or glue for laser cut baltic birch plywood.
Just my 2 cents, feel free to argue otherwise.