Search found 223 matches

by Bob Howell
Thu Aug 17, 2017 1:41 pm
Forum: Archtop Guitars and Bass Guitars
Topic: 1st build and misunderstood bridge location measurement
Replies: 24
Views: 16679

Re: 1st build and misunderstood bridge location measurement

Glued the bridge on today. used 3mm compensation. The bracing design is light, so I will use ultralight strings as Willis recommends. I built 8-10 dulcimers 8 or nine years ago. I spent a bit of time adjusting the saddle to remove dissidence, though my instructor said it was not necessary. I liked t...
by Bob Howell
Thu Aug 17, 2017 1:35 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Truss rod choice for OM build
Replies: 27
Views: 33126

Re: Truss rod choice for OM build

David: The old single action Gotoh style Martin rod used from the mid-1980's through 2005 is an excellent truss rod, and as you suggested, is no longer in use on any Martin guitars; however the Martin rod I am suggesting is the newer (post-2005) double action truss rod in service on something like ...
by Bob Howell
Sat Aug 12, 2017 9:29 pm
Forum: Archtop Guitars and Bass Guitars
Topic: 1st build and misunderstood bridge location measurement
Replies: 24
Views: 16679

Re: 1st build and misunderstood bridge location measurement

I think I have it close. I will have the finish repaired this week and Then try what I have Made so far.

Thanks for the help.
by Bob Howell
Fri Aug 11, 2017 4:43 pm
Forum: Archtop Guitars and Bass Guitars
Topic: 1st build and misunderstood bridge location measurement
Replies: 24
Views: 16679

Re: 1st build and misunderstood bridge location measurement

Did I misunderstand Cumpaino? I read it as 1/8" above bridge and then radiused to match the fretboard. That's how I got so low.
by Bob Howell
Fri Aug 11, 2017 6:46 am
Forum: Archtop Guitars and Bass Guitars
Topic: 1st build and misunderstood bridge location measurement
Replies: 24
Views: 16679

Re: 1st build and misunderstood bridge location measurement

The issues discussed here about compensation and saddle height have got me digging in to design. I see Willis has provided plans for a light weight OM, using ultra light strings designed for a beginner. This is very different from Cumpaino's design. Switching back and forth between books is getting ...
by Bob Howell
Thu Aug 10, 2017 11:37 am
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Spare holes in fretboard-how to cover
Replies: 15
Views: 8852

Re: Spare holes in fretboard-how to cover

fretboardrepair.jpg Here is my repair. I tried cherry but it stood out and looked like a mistake so I went with the same rose wood which blended fine. I cut a number of plugs with a plug cutter. Very tight fit so I sanded them with 120 sand paper, after beveling the edge with a carving knife. I hav...
by Bob Howell
Tue Aug 08, 2017 6:08 am
Forum: Archtop Guitars and Bass Guitars
Topic: 1st build and misunderstood bridge location measurement
Replies: 24
Views: 16679

Re: 1st build and misunderstood bridge location measurement

I found where Cumpiano included compensation. .15 " or 4 mils as I see it. Willis called for 2 mils.
I made the saddle per Cumpaino's instructions. With a 12" radius it is only 1/16" or so on the ends.
by Bob Howell
Tue Aug 08, 2017 5:58 am
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Spare holes in fretboard-how to cover
Replies: 15
Views: 8852

Re: Spare holes in fretboard-how to cover

Bob Gramann wrote:You might replace two strips of the surface wood between the frets. A little dust and CA and the seams will be all but invisible.
I'm' thinking this way after sleeping on it. One patch of the same wood inlayed. Creating some obscure design.
by Bob Howell
Mon Aug 07, 2017 9:21 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Spare holes in fretboard-how to cover
Replies: 15
Views: 8852

Re: Spare holes in fretboard-how to cover

Its glued on neck. I was thinking of cutting a third hole and making 3 cherries with stems. So getting a plug cutter and cutting 3 plugs of some contrasting wood. Think I'll get the plug cutter first and see what I can make. Three cherries; my brand! Would that location confuse the player?
by Bob Howell
Mon Aug 07, 2017 1:21 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Spare holes in fretboard-how to cover
Replies: 15
Views: 8852

Spare holes in fretboard-how to cover

fretboard problems.jpg
So I was working late. Messed up and must work it into a design of some kind. I need ideas.

Help.
by Bob Howell
Sun Aug 06, 2017 8:48 pm
Forum: Archtop Guitars and Bass Guitars
Topic: 1st build and misunderstood bridge location measurement
Replies: 24
Views: 16679

Re: 1st build and misunderstood bridge location measurement

I am using two books as guides to build my OM. Cumpaino and Alex Willis books. Everything has been easy to understand till I got to set up. Now I see Willis adds 2mm compensation but Cumpaino adds none. Then Willis shows a higher saddle; 15/32 and Compaino, 5/16. Reading around I see string weight i...
by Bob Howell
Tue Aug 01, 2017 9:25 pm
Forum: Archtop Guitars and Bass Guitars
Topic: 1st build and misunderstood bridge location measurement
Replies: 24
Views: 16679

Re: 1st build and misunderstood bridge location measurement

I had added 1/4" compensation and needed only 2ml.
I got it off ok. Now must refinish.

I put this in wrong forum. Its an OM acoustic.
by Bob Howell
Mon Jul 31, 2017 5:29 pm
Forum: Archtop Guitars and Bass Guitars
Topic: 1st build and misunderstood bridge location measurement
Replies: 24
Views: 16679

1st build and misunderstood bridge location measurement

Glued the bridge 7 hrs ago with yellow glue, and now realize I was off 2mls. I measured distance from 12th fret to front of bridge rather than center of saddle. So I guess I take a hot knife and remove the bridge.
by Bob Howell
Mon Jul 10, 2017 12:44 am
Forum: Tools and Jigs
Topic: Guitarbuilding outside?
Replies: 5
Views: 3413

Re: Guitarbuilding outside?

I do my sanding outside and am amazed how fast the sound board warps. It balances out easily/quickly so no damage. Once the sound box is assembled I'm careful with time out in humid air. But even today in Atlanta with a high of 90, humidity will be 50-60% till a thunder storm comes through. I sand i...
by Bob Howell
Mon Jul 10, 2017 12:21 am
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Avoiding staining/bleed out on woods?
Replies: 3
Views: 3169

Re: Avoiding staining/bleed out on woods?

I am dealing with this with rosewood bindings and maple perfling. A can of spray shellac proved the solution, as I am using shellac as my finish. Dusted lightly several times; it seals off staining when dry. I was told they use vinyl sanding sealer for lacquer finish.
by Bob Howell
Sun Jun 18, 2017 9:00 pm
Forum: Wood and Materials Q&A
Topic: Red Tip Photina wood
Replies: 20
Views: 14540

Re: Red Tip Photina wood

PE_20170614165151.jpg The local wood turning club in Atlanta is talking about Red Tip. It is reported to be a good substitute for boxwood; takes detail well. Turners find plenty of green wood by developing relations with tree cutters in the area. Anyone wanting native woods can find it there. I jus...
by Bob Howell
Thu Jun 01, 2017 8:55 pm
Forum: Wood and Materials Q&A
Topic: Red Tip Photina wood
Replies: 20
Views: 14540

Re: Red Tip Photina wood

I had not thought of that, Great idea.
by Bob Howell
Mon May 29, 2017 3:32 pm
Forum: Wood and Materials Q&A
Topic: Red Tip Photina wood
Replies: 20
Views: 14540

Re: Red Tip Photina wood

I have noticed a lot of old stands of this along Briarcliff Rd in Atlanta Ga. I'm sure it is around elsewhere. Looks a lot like apple wood but is more stable. Member of apple family. Another domestic wood with potential.
by Bob Howell
Sat May 13, 2017 3:56 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Looking at these guitar plans
Replies: 23
Views: 17040

Re: Looking at these guitar plans

I am thinking of building one of the OO models shown here for my next build. They seem very similar with just minor differences in bracing. If I made a mold for my Fox binder couldn't I use it for either. My daughter printed up the Gibson L-OO at her print shop on clear laminate with adhesive on one...
by Bob Howell
Wed May 10, 2017 4:24 pm
Forum: Glues and Finishes
Topic: Making shellac stick or filler
Replies: 12
Views: 7008

Re: Making shellac stick or filler

Well, I found out that after Sealcoat sits for 3-4 weeks it is still sticky and when dabbed into a void on scrap it remains sticky. Something bad going on but not worth pursuing. Another rabbit trail.

I got some blond flaks which will do the job.