More Mahogany and Maple
Moderator: Brad Bechtel
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Beautiful work!!!
Only one thing I would like to ask you about. I have found that in cutting the back section of the neck in order to make a headstock thickness that will allow the machine heads to fit will actually weaken the head and cause flexing and decreased sustain. If you plug into a tuner and play an open note and reach up at the headstock press down on the end, does the pitch of the note change????
If you see no change of pitch then that would be remarkable.
If you do see a pitch change then the headstock strength might benefit from either a brace attached from the end of the back of the head to the body or just rout a "ledge" on either side for the machine heads instead of cutting all the meat of the wood on the back of the headstock. With the ledge on both sides, there would be a continuation of the thickness of the neck all the way through under the nut and into the headstock.
Let me know what you find and what you think about leaving the headstock area as thick as possible. Again, beautiful work.
Only one thing I would like to ask you about. I have found that in cutting the back section of the neck in order to make a headstock thickness that will allow the machine heads to fit will actually weaken the head and cause flexing and decreased sustain. If you plug into a tuner and play an open note and reach up at the headstock press down on the end, does the pitch of the note change????
If you see no change of pitch then that would be remarkable.
If you do see a pitch change then the headstock strength might benefit from either a brace attached from the end of the back of the head to the body or just rout a "ledge" on either side for the machine heads instead of cutting all the meat of the wood on the back of the headstock. With the ledge on both sides, there would be a continuation of the thickness of the neck all the way through under the nut and into the headstock.
Let me know what you find and what you think about leaving the headstock area as thick as possible. Again, beautiful work.
- Tom Pettingill
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Thanks Chris and Bill
On headstock stiffness.
Anytime you thin out a piece of wood its going to be less stiff than in its full thickness form, just the nature of the beast.
Though, there are some things you can do to minimize the effect and add rigidity back.
Adding a head cap and or back strap can greatly add to the headstocks stiffness. Also things like a rear volute or routing tuner ledges like you mentioned are another good option.
Another way to add / maximize stiffness is in the use of laminate designs such as you see from custom bass builders..
On this one, the headstock is very stiff. It gets its stiffness from a couple things.
The overall thickness is just shy of 5/8", thicker is better.
The overall headstock length is only 6 1/2", but the farthest tuner is only 5 1/2" out. Shorter = less leverage = less deflection.
The under cut / bottom transition carrys a little further into the headstock leaving only about 4 1/2" of minimum thickness to farthest tuner.
And finally, the laminate effect adds greatly.
The center mahogany section is two pieces and the hard rock maple outer ears stiffen it even further.
As you may have guessed, I spent a lot of time thinking it out
On headstock stiffness.
Anytime you thin out a piece of wood its going to be less stiff than in its full thickness form, just the nature of the beast.
Though, there are some things you can do to minimize the effect and add rigidity back.
Adding a head cap and or back strap can greatly add to the headstocks stiffness. Also things like a rear volute or routing tuner ledges like you mentioned are another good option.
Another way to add / maximize stiffness is in the use of laminate designs such as you see from custom bass builders..
On this one, the headstock is very stiff. It gets its stiffness from a couple things.
The overall thickness is just shy of 5/8", thicker is better.
The overall headstock length is only 6 1/2", but the farthest tuner is only 5 1/2" out. Shorter = less leverage = less deflection.
The under cut / bottom transition carrys a little further into the headstock leaving only about 4 1/2" of minimum thickness to farthest tuner.
And finally, the laminate effect adds greatly.
The center mahogany section is two pieces and the hard rock maple outer ears stiffen it even further.
As you may have guessed, I spent a lot of time thinking it out
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Great job!
That is one beautiful piece of work!! You are very talented for sure!
Terry
Terry
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- Tom Pettingill
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- John Ficken
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See? And I get to claim him as my wife's cousin!
And I heard he built it in an emergency shelter while running from the wild fires last month!
Just beautiful, Tom! (although I notice you haven't sent me one yet )
Say--I'll trade you straight across for two obnoxious children--whatcha think?
...they're house broken...mostly...
And I heard he built it in an emergency shelter while running from the wild fires last month!
Just beautiful, Tom! (although I notice you haven't sent me one yet )
Say--I'll trade you straight across for two obnoxious children--whatcha think?
...they're house broken...mostly...
OK...I'm gonna try and tune this thing...again!
- Alan Brookes
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- Tom Pettingill
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- John Ficken
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Hey, Tom!
Naw...the next one will be a six, just by virtue of the fact that I have enough six string parts around here to build about two new lap steel guitars.
Lately, I've also taken to shopping for parts and making Frankenstrats and Parts-O'-Teles....keeps me off the streets during the day!
I've got oak and maple laying around as stock, as well as Fender pick-ups and parts, so it seems the choice of builing materials has been made as well!
Naw...the next one will be a six, just by virtue of the fact that I have enough six string parts around here to build about two new lap steel guitars.
Lately, I've also taken to shopping for parts and making Frankenstrats and Parts-O'-Teles....keeps me off the streets during the day!
I've got oak and maple laying around as stock, as well as Fender pick-ups and parts, so it seems the choice of builing materials has been made as well!
OK...I'm gonna try and tune this thing...again!
- Tom Pettingill
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- John Ficken
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- Jude Reinhardt
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Where's that mailman?
Christmas came early to southern Ohio this year. The "Pettingill" should arrive today. Thanks again Tom.
Jude
Jude
"If we live in fear of banjos, then the banjos have won".
"Man cannot live by bread alone, he must have Peanut Butter". - Kruger Bear
"Man cannot live by bread alone, he must have Peanut Butter". - Kruger Bear
- Therman Jones
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swankiest "teardrop" ever!
Just gorgeous, Tom, don't know how you managed to part with it. Jude, you've gotta be counting the minutes 'til that baby shows up at the door...
- Tom Pettingill
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- Jude Reinhardt
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First impressions
I'm in love! This guitar sounds better than it looks, Tom knows how to select a pickup. Sorry I can't post a sound clip but I can't do this guitar justice. It'll take me a little while to get used to the offset position marks, I hope you all can feel my pain. I lifted the plate off that has the tone and volume control and found a neat brass label fastened to the bottom of the shielded cavity- Tom Pettingill 11-2007 TD-001. I was pleased to find the makers name on the guitar. Very neat, good clean solder connections, same quality workmanship as is found on the outside of the guitar. The wooden plate on the other side? Only Tom and I know what's under it. Sorry. I had thought at first that since the guitar was shaped like a banjo the Tom had made an armrest for it. Not so, it's has another function entirely. If you're wondering about the bone nut, I'm convinced that's the way to go. This puppy sustains forever. No brass nut needed. If you're wondering what's under the bridge cover, which is also a perfect hand rest if you're used to playing a dobro or something like the Oahu/Goldtone Tonemaster here's a picture of the bridge.
Jude
Jude
"If we live in fear of banjos, then the banjos have won".
"Man cannot live by bread alone, he must have Peanut Butter". - Kruger Bear
"Man cannot live by bread alone, he must have Peanut Butter". - Kruger Bear
- Tom Pettingill
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- Rick Barnhart
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beautiful
This Pettingill deserves a trip to the top. She's Beautiful Tom!
Clinesmith consoles D-8/6 5 pedal, D-8 3 pedal & A25 Frypan, Pettingill Teardrop, & P8 Deluxe.
- Ronald Smith
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New One "Tom P. Baby"
Tom,
That is an exibit of a great craftsman. If you beat this one????----I just don't know. You might want to show room this one, it being a very very great job.
Thanks for sharing it with up and God bless you and yours and also your talent.
Ron
That is an exibit of a great craftsman. If you beat this one????----I just don't know. You might want to show room this one, it being a very very great job.
Thanks for sharing it with up and God bless you and yours and also your talent.
Ron
- Tom Pettingill
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