Comment

Comment by Yankee Dog on November 7, 2013 at 1:28am

Do you really need the sound hole(s). Trufully, I dont think I would take the chance on cardboard. If I was really just had to, I would use an xacto/razor knife and a lot of time and patience.

Comment by Oscar Myer on November 6, 2013 at 3:51pm

I always use a hole saw with a 1/4" drill bit center. I slowly drill 1/2 way through, then flip it over and finish drilling from the other side. This keeps it from blowing out on the inside of the lid.

Comment by MadGomer on November 6, 2013 at 2:57pm

I agree - you have to be careful on paper/cardboard.  Like Mr McCauley, I like to slowly run the bit backwards to work through the top layer without tearing it, using either a Forstner bit or a hole saw.  I'm paranoid enough that sometimes I'll even trace over it with an X-acto or carpet knife before going back at it with the hole saw or bit.  Please also take Duck's advice & use a solid backing board.  Take your time with it & use light pressure, whether turning the bit backwards or forwards and you can end up with a nice clean hole.  If you really bugger up the edge, you can probably find a grommet or some other sort of trim ring to dress up the final product so you don't have to scrap the box.

Comment by William McCauley on November 6, 2013 at 12:40pm

The last one I built I turned the forester bit backwards to cut the paper then did the drilling at slowest speed. You may want to try this method with a hole saw also. I have also cut the top off the box to make the drilling operation easier and more accurate.

Comment by Maddog on November 6, 2013 at 5:43am

Hole saw.

Comment by Thomas "Duck" Petry on November 6, 2013 at 4:19am

I have used forstner bits and hole saws in a drill press with good results. Back up the lid with a piece of wood and use light feed pressure at a medium rpm.

Comment by Alan "Poor Boy" Ackerson on November 6, 2013 at 2:03am

What's the best way to bore sound holes in a cardboard lid? For fear of blowing it apart I was thinking of clamping a disc and tracing it with an x-acto. This is a one shot deal. Thanks!

Comment by Jim burt on October 31, 2013 at 1:05pm

I have make a few glass slide for my cbg...How a bout wooden or bone slide....What the best way to make 1?

Comment by David McQueen on October 25, 2013 at 3:28am

I've been using 3/32" brass rod. That's the smallest drill my drill press will hold. At that size, I can clip it off with the same nippers I use for frets. I set it in with glue and then after the glue has dried, I gently sand it down level with a belt sander.

I was just using it for side markers.  The last couple I built, I also used it for the markers on the face of the fret board.

Comment by stringybark on October 24, 2013 at 7:15pm

I use plastic bread ties..comes in all sorts of colors. I punch them out with a paper punch, then I 'flattened" the tip of the appropriate drill bit, use a punch to mark the spot and drill cautiously, works pretty good for me. But looking at what all you guys use, I am now on the prowl for other materials to try out...THANKS GUYS!  ps.. I flattened the tip of the drill bit to use as a forstner bit, goes ok too.

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