Some cool 3d printing aluminum parts pictures:
Slotting_jigII
Image by smellsofbikes
Jig for slotting 3d printer extruder components, dovetail in aluminum with 3d printed bearing holder and adjustment screw with adjustable bronze bushings
Slotting_jigI
Image by smellsofbikes
Jig for slotting 3d printer extruder parts, dovetail in aluminum with 3d printed bearing holder and adjustment screw with adjustable bronze bushings