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Step 10Drill out the Holes
Another couple tricks here. Since you don't have drill-holes made for you, an easy way to get them in the right place is to use your perfboard template again.
For a long row, like the resistor socket header, I'll put a dot in the middle of the top pin, then one in the lowest pin, then line up the two dots in the perfboard and fill in the rest. That way the whole header is on exact 0.1" centers.
The ultra-fine tip sharpie goes right through perfboard holes.
Have a look to make sure it all looks ok, then once you've dotted up the whole board, get to drilling.
The perfboard again, except this time as a drilling jig. Line up all the holes so that you can see the dots in them, then drill out the top and bottom pins, just like when marking them. Now you can stick something in the holes to keep the jig and board aligned. I used some solder that was lying around. Thick component leads or hook-up wire work well too.
Once you've got the perfboard jig set, the other holes take only a few seconds. This trick is huge for multi-pin ICs.
I drilled 6 more holes in the board to accomodate the wires from the power-supply plug so that they can loop through the board as a measure of strain relief. (Think I learned that trick here somewhere. Can't remember where. It's a good one.)
For a long row, like the resistor socket header, I'll put a dot in the middle of the top pin, then one in the lowest pin, then line up the two dots in the perfboard and fill in the rest. That way the whole header is on exact 0.1" centers.
The ultra-fine tip sharpie goes right through perfboard holes.
Have a look to make sure it all looks ok, then once you've dotted up the whole board, get to drilling.
The perfboard again, except this time as a drilling jig. Line up all the holes so that you can see the dots in them, then drill out the top and bottom pins, just like when marking them. Now you can stick something in the holes to keep the jig and board aligned. I used some solder that was lying around. Thick component leads or hook-up wire work well too.
Once you've got the perfboard jig set, the other holes take only a few seconds. This trick is huge for multi-pin ICs.
I drilled 6 more holes in the board to accomodate the wires from the power-supply plug so that they can loop through the board as a measure of strain relief. (Think I learned that trick here somewhere. Can't remember where. It's a good one.)
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