For a standard spray job its pretty simple. To re-cap on what jim posted in the other thread
prep: lightly sand surface, dust / hoover well and clean with some white spirits
priming: take your time and do several thin and even coats with some light sanding in between if necessary. lightly sand to a smooth flat finish when fully covered
coating: once fully primed and smoothed out evenly, lightly build up a coat of your final paint and be careful to never start or stop spraying while aiming at the surface
finishing: once a decent thickness of paint has been put down and fully cured (can take a long time - weeks even) you can either buff it up with an extremely light abrasive or spray a lacquer over it and buff that up
sorted
choose your paints carefully, ive used a ton of different types and ive settled on using the best primer I can get hold of (acid etch depending on metal) and car spray paint as it is hard and has a very nice finish, just be sure to get one with a good nozzle.
I can also recommend you dont rush into anything and do a small piece of a similar material first. Also if it is your first time it is well worth dismantling the case into the smallest parts possible and doing them one at a time. Saves you biting off more than you can chew and will give a better result at the end.
, I remember my first spray job, just follow the instructions mate and your good to go. Just a big tip, don't over do it with the layers, at first it doesn't seem to be going quickly, but after a few layers it builds up fast.
Don't rush it, worst thing you could do .
I alway find, before going to spray on the panel or anywhere spray at the side, just to get those splurts out at the beginning. Then move across, back and forth evenly.
Ditto. My first spray job took over a month due to waiting 1-2 days in between coats, but it was worth it in the end. The only mistake I made was over-sanding the corners. Sandpaper seems to rub 10x harder on corners than it does on a flat surface, so be careful there too.