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how would i go about cutting perfect circles for a sub box?
what tool do i use?
any special tips?

thanks, not sure if this should have went into TECH, or ICE.

 
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Just use a jigsaw and a compass. it's not that hard to cut a good line


If you want to get tricky, some jigsaws have a metal 'stick' on them that you can put in a hole and make a good circle...but I would just draw one out with a compass and cut it freehand.

 
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i have trouble cuttting straight lines with a jigsaw. LOL so i could imagine how messed up my circles would look.

 
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I borrowed a dremel with a circle cutting kit from a friend for my box..... made a dead perfect circle and the sub fit very snug :P

 
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was it a large 'plug in' dremel? becuase i have a small battery powered dremel. i dont think there is a circle attachment.

was it this thing?
http://www.dremel.com/productdisplay...5&Color=99CCFF

 
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Same dremel, different attachment..... you have to buy the attachment. It's just a small adjustable metal piece that attaches to the end.

this is what it looks like: http://www.toolpeddler.com/960-01.htm

 
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oHHHHH
i see now
thanks
u rock!

but on the down sides.. seems like my dremel wont work with that. i need to get the 80 dollar drill
http://www.toolpeddler.com/9000-04.htm

 
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you could use a hand saw, the dremel is harder to cut than a jigsaw...you have trouble with a jigsaw!?

What you need to do is cut under the line and then file the rest of the circle to the line drawn with the compass

 
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I have a similar drill and it doesn't work all that great. Wish i didn't waste my money. use a freakin jigsaw its the best tool.



EDIt: i never used a fansy circle cutting thing. I used a compass drew a line and dremeled the hole, and used that big drill, AND used a jigsaw...Jigsaw works best. Drill may cut a lil smoother but will take longer.

 
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If you have a router, i recomend the Jasper Jig from Parts Express . Cuts Perfect circles from 2-1/4" to 18-3/16". Its a lil pricey though if your only gonna make one circle cut though, $35.95.

 
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If you don't have a router, you can get something very similar made by dremel (that does a lot more than a router) called a roto-zip. They make a hole cutting attachment for it, which goes up to 12" in diameter I think. I used it to make my box last time, makes dead on perfect circles that are clean cut. The rotozip usually sells for about $90 at Home Depot - its a tool that everyone should have!