Well, I've screwed up several MHS pieces this week. I drilled a hole for a blade retention screw in a new blade holder. I got it exactly in the right place. But then when I tapped it, the 10-32 tap broke off in the hole. I destroyed the piece trying to get it out.
Then I decided to cover over the mess with a shroud. That went well. So I drilled two small holes on each side of the shroud to expose the blade holder--thinking I could add electrical pins for a cool effect. But then when I tried to drill the tiny holes in the blade holder, I got one off target by about 1.5 mm. So now I will re-do the shroud to cover another mess.
What are some tips for drilling precision holes? I have tried using a Dremel with a very small bit to get the hole started. I have also tried getting a hole started by knocking a divot in the metal with a small nail. I can get the bit to drill in the right place only about 49% of the time. So that means I screw up a lot of nice pieces. I have a drill press, but it is even less accurate, because the bit walks around too much. I'd like to stop ruining expensive pieces.
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