Joben Magooch
Well-known member
Honestly probably the biggest source of error for me is simply when the drill template gets misaligned, not put on just right.
What I have done to (mostly) eliminate that error... I put a little bit of double-sided tape on each of the corners of the face of the enclosure. Then I have an old computer monitor placed screen-up. I turn it on and the put the enclosure on the screen. Then start to line up the drill template. The backlight will project around the enclosure and through the template paper and get it lined up just right. Stick down the corners where the double-sided tape is and wrap around the sides and you're good to go. I use Scotch/3M carpet tape. It sticks nicely; the template won't move at all if you press it down well, but once you're done it peels off the enclosure without much fuss and no residue in my experience.
Then I use my ultra-cheapo Harbor Freight center punch. They work pretty nice for me, although the tip does seem to get blunted fairly quickly. But they are cheap enough (I think $4 without any coupons) that I just buy one or two a year and no worries. The old ones get left around the shop for less precise times.
Then a really small drill bit in the drill press to drill out the indents made by the center punch. Probably like 1/16 or 3/32. I have also found that if you center-punch your holes well enough then a small bit will more or less "find" the proper indent without having to worry a ton about getting everything perfectly aligned and clamped down and stuff. As long as you're pretty close to the mark the bit will center itself on your punch-indent and line up without much fuss.
Step-bit from there. Have found the same to be true there, too - once you've drilled out a small starter hole, as long as you don't clamp down the enclosure...just hold it loosely and lower your bit and it should center itself on the hole. Then you can hold it more tightly and drill your hole as needed.
I used to always use a vice and clamp everything down just so but found that a lot of the times the bit would want to "walk" or "drift" a bit on its own - if it's not perfectly lined up with the mark then once it's clamped down it's going to want to fight a bit. I've found that by NOT clamping down the enclosure I'm able to get my drill/marks lined up just as accurately (if not more so) and much more quickly.
I have now typed far more about drilling holes in pedal enclosures than I ever anticipated I would for the whole of my life.
What I have done to (mostly) eliminate that error... I put a little bit of double-sided tape on each of the corners of the face of the enclosure. Then I have an old computer monitor placed screen-up. I turn it on and the put the enclosure on the screen. Then start to line up the drill template. The backlight will project around the enclosure and through the template paper and get it lined up just right. Stick down the corners where the double-sided tape is and wrap around the sides and you're good to go. I use Scotch/3M carpet tape. It sticks nicely; the template won't move at all if you press it down well, but once you're done it peels off the enclosure without much fuss and no residue in my experience.
Then I use my ultra-cheapo Harbor Freight center punch. They work pretty nice for me, although the tip does seem to get blunted fairly quickly. But they are cheap enough (I think $4 without any coupons) that I just buy one or two a year and no worries. The old ones get left around the shop for less precise times.
Then a really small drill bit in the drill press to drill out the indents made by the center punch. Probably like 1/16 or 3/32. I have also found that if you center-punch your holes well enough then a small bit will more or less "find" the proper indent without having to worry a ton about getting everything perfectly aligned and clamped down and stuff. As long as you're pretty close to the mark the bit will center itself on your punch-indent and line up without much fuss.
Step-bit from there. Have found the same to be true there, too - once you've drilled out a small starter hole, as long as you don't clamp down the enclosure...just hold it loosely and lower your bit and it should center itself on the hole. Then you can hold it more tightly and drill your hole as needed.
I used to always use a vice and clamp everything down just so but found that a lot of the times the bit would want to "walk" or "drift" a bit on its own - if it's not perfectly lined up with the mark then once it's clamped down it's going to want to fight a bit. I've found that by NOT clamping down the enclosure I'm able to get my drill/marks lined up just as accurately (if not more so) and much more quickly.
I have now typed far more about drilling holes in pedal enclosures than I ever anticipated I would for the whole of my life.