It takes years of experience if polishing machines or equipment is used or you will more than likely hurt yourself or your frame. This includes the use of dremel tools, drills, and grinders, ECT
However it can be done at home safely.
First the paint must be removed, I recommend using aircraft striper brand spray or liquid brush-on.
Then hand sand using 200 grit wet-or-dry paper with a little water.
Then repeat the process with 300, 500, 1000, 1500 grit, the finer you go the brighter the buff will be.
Now you can use a rag and aluminum cream polish such as Mothers or Flitts, NOT never-Dull
It takes lots of time and scrubbing but will look good if you are thorough with each step.
I have seen many ruined projects as a result misused equipment or tools even in the hands of otherwise skilled craftsman, so stick to the plan or pay a pro.
If you give it a try report back and let us know how it went.
See more of my work here www.BrightLee.com
The polishing is dope. I've spent a lot of time polishing various bits of metal over the years, so I appreciate the time and effort that must have taken. Just out of interest, have you weighed a frame before paint striping and after polishing?