The trick is to use sandpaper. It’s a good quality abrasive material and is readily available. You’ll want a selection of different grits – low grits to get started, higher grits when finishing.
Then, it’s off to sanding with 200 and 600 grit wet sandpaper. Slowly, the soldermask is removed and the top copper layer appears. After that, it’s just a matter of sanding and scanning ...
Now we're over at the sanding machine, and we will take this through at least three different grits of sandpaper to remove the large chunks. Now that it's smooth, we can actually go through and ...
Finishing with 220-grit sandpaper is probably sufficient in most ... The Best Dish Soap We’ve wiped up gallons of spills with 25 different towels over the past four years, and the Williams ...