Re: Genesis 3 Portable Worklog
I kind of eye-balled where to make the holes at, and made a dot with a sharpie (where the center of the button will be). Once it all looked even, I made a small incision with my dremel, and then made it a bit bigger using sanding drums.
As I'm grinding, I try to make sure the holes are circular for the most part. To be certain that the holes won't be oblong, I hold the button on the other side of where I'm cutting to see how much more needs to be sanded down for the button to fit, and sand down a bit more slowly.
As the hole reaches a closer diameter to the button, I try to push the button into the hole to see if it will fit. It should not be able to fit unless the hole is nearly finished. You are nearly finished if you are able to get the button inside, but it's a very snug fit. Just lightly brush the sanding drum along the edges of the hole for a few seconds at a time. Just keep on trying the button every few seconds.
Once the button drops in easily, you are done. As long as you take your time and use the button to reference the hole size every once in a while, you shouldn't have any problems. After all, this is my first time doing case work for a portable. If, however, the holes are cut too big, or are slightly oblong, abs cement or plastic bondo should solve the problem.
EDIT: Corrected some iffy spelling, and added a parentheses in the first paragraph. Please let me know if you understood this, I tried to be thorough.