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How To Drill The Sunken Control Holes?


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Thanks for the input... Definitely scrap scrap scrap.  :D

Warmoth routes the control cavities on their carved tops to match the top radius, so I've got to figure out how much wood they left me to work with.

mattia, do you have pics posted anywhere?

Mike

Umm, guitar of the month entry for November, but this should do:

During spraying:

http://www.xs4all.nl/~mvalente/guitarpics3/pat_body15.jpg

http://www.xs4all.nl/~mvalente/guitarpics3/pat_body22.jpg

They look pretty huge, but here's the finished product. Fit just fine:

http://www.xs4all.nl/~mvalente/guitarpics4..._finished03.jpg

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I forgot that one was yours... I love it and I thought it should have won GOTM!

That's exactly what I'm trying for... if I have enough wood to work with.  What size forstner did you use?

thanks!  :D

Heh..thanks! It was a very close race, but I was up against some incredibly tough competition. I think I did ok for myself.

I believe I used a 1" forstner for the original recess, cleaned up with chisels, dremel, detail sander. A few pics of the recessing process, earlier on:

Forstner drilled:

http://www.xs4all.nl/~mvalente/guitarpics/pat_body_37.jpg

Roughed out (dremel tool, mini router bit IIRC):

http://www.xs4all.nl/~mvalente/guitarpics/pat_body_38.jpg

More or less finished product:

http://www.xs4all.nl/~mvalente/guitarpics/pat_body_39.jpg

The difficulty in doing it this way was getting evenly-sized countersinks. Some will also seem smaller/larger than others beause of where they are on the top, and what the carve is 'doing' at that point. I did some more work to even them out after that last shot.

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why doesnt someone just get a small block of wood bigger than the sunken hole you want, drill a hole through the centre of it the size of the pots shaft or drill bit that you drill the pots holes with then round the block on a lathe, then round one end until it is the shape that you want your pot-hole to be. get some adhesive backed sandpaper and cut it up into strips and glue it to the curved face then cut the sandpaper of that is covering the drill bit hole and stick the bit in and somehow clamp it to the bit....havent thought of how to do that yet.... then drill away and adjust the block so that when your bit goes to a certain depth the block will start sanding away.. keep going until the desired depth is met.

hopefully that makes some sence to other people.....

and you dont have to make the sanding cylinder thing you can always find something similar like an end of a wooden mop or something and just drill through the centre.

:D

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On the JV-1 I puposely didn't go for the sunken recess look. I just used a 1-1/16" forstner bit to drill the holes, just so the knobs fit perfectly.

jv1knobs01.jpg

Mattia is telling you a cheaper way of doing it if your wanting the PRS recess, a cove bit would cost more but be faster like Maiden used. It really doesn't matter, because they both will give you the same results.

You know after looking at the old pictures of the JV-1, I'm really wishing I'd have done the black epoxy method.. man what great grain I hid with the finish.. Oh well, you live and learn.. lol

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