First coat of primer is down on the top half, looks like I need to do abit more touching up on the spot filler and sanding. 
Once that is done, I'll knock it all down with some 600 grit paper and get it ready for some matte black paint!

First 2 coats of primer laid down, I'm going to do some light sanding and apply abit more spot putty in some very small areas to clean it up abit more.
Sadly the Nintendo logo came out fairly poor from the 3D printing process. I'm debating if I can clean it up abit with filler and some prep work

I've also managed to get the first 2 coats of primer onto the cartridge, controller ports, memory slot cover and power / reset buttons

As you can see, just some minor touch ups still needed, and sanding with some 600 still, but it is getting closer!

Last night I was able to get the first coat of spot putty on the base, as well as touch up the areas on the top and cart I was not happy with.

This morning I started to sand down the glaze and add the first coats of primer to the bottom half, as well as touching up the top sections and cart. Once the primer dries later today, I'll be hitting it with some 600grit wet and then starting with the matte black top coats.

I will most likely do 1 coat, wet sand with 1200, and then possibly 2 more coats and re-sanding, depending on the look / outcome of the first run.

The base didn't come out as well as I had hoped, and I decided to forego putting as much effort into cleaning it up as I did the top.

You can see the vent lines / holes didn't print very well on the bottom, this is due to how I oriented the print on my 3D printer.
None-the-less, it's the bottom so who cares right? 😉

I'm still waiting on the primer to finish drying before I hit the base with the 600grit wet sand phase, and the first light coat of matte black is being laid down on the top half. Though I'm not real happy with how the rattle can is laying out the paint. The grey primer went down well, this other brand isn't fairing to hot with an even coat.. Very splotchy, so we shall see.

On and on a side note, my vinyl label inkjet paper came today!

The first labels are ready!

Not the best pic, the lighting in the basement is fairly poor, and with all the rain we've been getting outdoors is not an option.
Sadly a hair floated into the paint while drying, so that will be fun to clean up.

But outside of that, first coats of black are down on the top, memory slot cover and power/reset buttons.
Later today comes wet sanding, and spraying the base!

I only had 1500 grit sandpaper on hand, its taking abit to get the first coat cleaned up as I would like to see, so off to the hardware store tomorrow to grab some 800 grit range paper before going onto a 1200

I've attached the labels I modified to fit my needs.

The N64 cart art is a bit stretched to fit the cart itself on the Mini.

The cart is pretty much "done". I'm not sure I'm happy with how light the grey paint looks, but it'll just have to do.

Also, a couple of test fits with the cart in place, the base and top are currently in the basement now, getting a final coat of matte black

Things are getting REAL close now. I'm debating if I even want to wet sand it as it sits, it looks fairly decent.
Sadly I just got a full pack of sand paper and polishing compound, but I doubt I'll end up using it... I'm fairly happy with the results thus far.

I will say, I wish I would have paid more attention to some of the corners and tight areas, to make sure I got everything smoothed out, but as small as some of them are... whew.

The power button and reset switch just got a fresh hit of paint after taking this pic, and they are drying in the basement.

The controller ports are ready to secure in place, and electronics are ready to setup.

I'll be adding a red power LED, and I'm looking to source the power and reset switch hardware so I can get those mounted.

More to come!

A final update for the night, and looking at the pics, it makes me wish I would have gone for a charcoal or gunmetal paint rather than a pure black.

Now it may just be time to start adding electronics and tactile buttons. (This will help with the sunk in reset button as well.) And I can then finish up with the controller port pieces.

A couple more tastey bits of N64 goodness.

I hope to have this device done by the weekend, I am awaiting a few buttons and switches from Amazon, and need to wire up the power LED as well as glue the controller ports into place.

The Pie is in place, this is just a spare 3 I had sitting around, sadly the case wont fit a 4 without a full redesign.

And not to light it up, a 3mm Red LED rated at 2.3-1.8v with a 270ohm resistor inline on v+ to cut the 5v signal coming from the Pi, and drop it down drastically. (I really didn't want anything super bright)

I did scratch the paint a hair, so time for a touch up .

The fan, power and reset buttons are now in place.
The slider switch for the power button could be redone abit better as I used Hot Glue to hold everything in place and it makes sliding off and on abit sticky.

I also dabbed abit of hot glue around the fan to help secure it in place, even with the screws in it would wobble just a hair.

The fan vents out behind the cart for some decent air flow.

I need to re-cut another label and secure that in place, then glue on the controller ports and bolt it all together!