Molex 3p
grabcad
A straight 3-pin, one row Molex KK 254 male connector for PCB with a 2.54mm pitch is what you're looking for.
Download Model from grabcad
With this file you will be able to print Molex 3p with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Molex 3p.