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Speaker Holes?
eds1275:
How big are your speakers? Just grab a cheap appropriately sized hole saw, drill a pilot hole, and drill halfway from both sides. For bonus points route the edge of the hole with a slight round over if you aren't using covers.
vast:
--- Quote from: eds1275 on April 27, 2011, 02:55:10 pm ---How big are your speakers? Just grab a cheap appropriately sized hole saw, drill a pilot hole, and drill halfway from both sides. For bonus points route the edge of the hole with a slight round over if you aren't using covers.
--- End quote ---
I'm popping in 4" speakers. I'd love to use a circle jig but it cost is prohibitive (especially when I only have a loaner router).
Just ordered a set of hole saws from amazon that has a 4" hole saw, it was only £11. Hopefully it will do the job! I shall definitely be rounding over the edges :cheers:
gryhnd:
Easy enough to make a homemade circle jig for occasional use out of some hard board or luan:
WindDrake:
Hole saw. I've got a 5-1/4" one for car speakers, works great on MDF/Particle Board.
DNA Dan:
I used a hole saw to make 2 X 4" holes for my fans. See reply 54 in my build thread here: http://forum.arcadecontrols.com/index.php?topic=110471.40
I think it turned out really well. Hole saws are not cheap. I paid ~$20 USD for a 4". If you go up to 4 1/2" it's like ~$30 USD. The cheaper core saws only have threads in them. You then have to buy a drill bit adapter that screws into this. It's more upfront cost, but if you need to buy another core saw later on, it's cheaper in the long run. What's nice about this setup is the drill bit helps keep is lined up in the hole while it cuts. If you go this route:
1) Drill at the highest speed setting you can.
2) Let the saw "do the work", don't push on it too hard.
3) Make sure you hold it perpendicular to the surface being cut. (Brace yourself nice and solid.)