Well, this isn't quite an easy print. The thing that needs to be precise is the ramp that holds the cap on the lens, but printing that face-up means that the back of the cap is printed as unsupported spans. Printed without supports, there will be poorly-bonded strands, but they'll be on the inside, so they don't really matter.
I printed it in PLA at 0.25mm and 25-40% fill. Blue and white were Minolta's packaging colors, but obviously any color(s) would work. I used a toothpick to place white paint in the embossed lettering; it isn't great, but it is readable enough.
The "minolta" text is simply a way to identify the mount; this lenscap is in no way a Minolta product. (The two STL files differ only in how much the text is rotated; they both work, but one or the other lines up text better with the top of the lens, depending on minor variations in lens flange thickness -- official lens caps don't line-up printing on them consistently either.) Although the mount is technically called SR, and MC and MD are just lens designations adding features to SR, I figured it would be easiest to identify the mount by a pre-1981-style lowercase "minolta" as seen on the SRT and other SR-mount cameras. Later Minolta cameras used an uppercase logo which most people would associate with the incompatible AF mount (which is now also known as Sony A mount).