Search found 368 matches

by Craig Bumgarner
Mon Dec 05, 2016 4:05 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Fretting, backbow
Replies: 22
Views: 13023

Re: Fretting, backbow

Stephen Neal Saqui wrote:Driving the neck into a back bow is simply that you haven't matched the frets to the slot.
That makes sense! I ordered the Fret Barber and we'll see how it goes! Thanks.
by Craig Bumgarner
Thu Dec 01, 2016 12:04 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Fretting, backbow
Replies: 22
Views: 13023

Re: Fretting, backbow

Interesting, thanks all. I used to do it that way, fret the board, then glue it. I switched away when I started using compound relief (different relief amount and location worked into the board for each string), something I'm happy with, but started noticing the backbow issue at the same time. Humm....
by Craig Bumgarner
Wed Nov 30, 2016 5:26 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Fretting, backbow
Replies: 22
Views: 13023

Fretting, backbow

I seem to get a an unpredictable amount of back bow in my necks after fretting. I recently noted that one of my favorite fret wires was designed with a .025" tang and I was cutting a .022" slot, so I switched to a fret wire with a .022" tang and the first one resulted in more back bow that ever. Hun...
by Craig Bumgarner
Tue Nov 01, 2016 5:00 pm
Forum: Classified Ads
Topic: Rosewood & Cocobolo veneers for sale
Replies: 0
Views: 5529

Rosewood & Cocobolo veneers for sale

Anyone laminating guitar back and sides? I have some EIR, Coral Rosewood and Cocobolo veneers suitable for the exterior laminates. They are very nice and I'd love to use them, but unfortunately, I have developed a skin sensitivity to all rosewoods. Got get them out of my shop so I won't be tempted. ...
by Craig Bumgarner
Wed Oct 19, 2016 9:34 am
Forum: Jam Session
Topic: A man hears what he wants to hear and disregards the rest
Replies: 22
Views: 14748

Re: A man hears what he wants to hear and disregards the rest

I friend once told me the only thing guitar buyers care about is low action and rosewood. I'm not that cynical, but most players do focus on fewer elements of the build than us builders do. I'm finishing up a custom build now and after 88 email exchanges, the buyer has yet to ask me about tone or an...
by Craig Bumgarner
Wed Oct 19, 2016 9:18 am
Forum: Jam Session
Topic: When did it become a thing that everyone plays by wailing on a guitar?
Replies: 9
Views: 6657

Re: When did it become a thing that everyone plays by wailing on a guitar?

In the style I play, acoustic gypsy jazz, players all aspire to a technique referred to in English as "gypsy picking". The primary thing is it uses a lot of down strokes and these are all rest strokes. That is the pick is forced through the string by the weight of the hand dropped on the string and ...
by Craig Bumgarner
Fri Oct 07, 2016 4:22 pm
Forum: Glues and Finishes
Topic: "vegan' glue & other alternative glues
Replies: 10
Views: 10469

Re: "vegan' glue & other alternative glues

Pretty good discussion of the history of adhesives here:

https://en.wikipedia.org/wiki/Adhesive
by Craig Bumgarner
Fri Oct 07, 2016 4:08 pm
Forum: Glues and Finishes
Topic: "vegan' glue & other alternative glues
Replies: 10
Views: 10469

Re: "vegan' glue & other alternative glues

Well, there is casein resin glue. As a French friend called it, cheese glue. Made from milk proteins. Used to be made right at home. Not exactly vegan, but it does not involve killing the cow. It is great glue btw albeit sensitive to high humidity and bacteria. Used in early wood and canvas airplane...
by Craig Bumgarner
Fri Oct 07, 2016 3:41 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Lining up fret ends
Replies: 9
Views: 7640

Re: Lining up fret ends

Moving the ends inboard and filing them hemispherical before setting makes for a nice hand feel on the neck, no sharp edges at all. Some builders of the Selmer style guitars, vintage and modern, do it that way. I did it that way once, but unless the ends are nicely lined up, it looks sloppy. My job ...
by Craig Bumgarner
Fri Oct 07, 2016 3:10 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Lining up fret ends
Replies: 9
Views: 7640

Lining up fret ends

Okay, I got one for you. If you don't run your fret end right to the edge of the fingerboard, how to you get them to line up nicely so that when you sight the edge, they are all lined up. The one time I used this approach, the ends did not line up well. If I run them to the edge, the flat file takes...
by Craig Bumgarner
Fri Sep 16, 2016 11:06 am
Forum: Tools and Jigs
Topic: Oval sound hole router jig /method
Replies: 7
Views: 5310

Re: Oval sound hole router jig /method

On my guitars, all the sound holes are oval or at least not round. I just draw the hole, use a small router (Dremel on a router base) to hog out most of it and then use a spindle sander in a drill press to sand to the line. Works fine and a lot less work than setting up a jig of any sort. You can do...
by Craig Bumgarner
Fri Jul 29, 2016 12:19 pm
Forum: Glues and Finishes
Topic: General Finishes Waterbase Topcoat - SM is pushing this - anyone tried it?
Replies: 230
Views: 191120

Re: General Finishes Waterbase Topcoat - SM is pushing this - anyone tried it?

I've not been thinning either the EV Satin or Gloss when spraying it. I used a 1.0mm tip on the Satin and a 1.8mm on the gloss, but not because of any major technical consideration. The Satin went down well with the 1.0mm tip, but the Gloss seemed to want a larger tip. My guns have plastic gravity c...
by Craig Bumgarner
Thu Jul 28, 2016 3:58 pm
Forum: Glues and Finishes
Topic: General Finishes Waterbase Topcoat - SM is pushing this - anyone tried it?
Replies: 230
Views: 191120

Re: General Finishes Waterbase Topcoat - SM is pushing this - anyone tried it?

Peter, I have not had much trouble. I empty the gun and run water through it and leave the gravity cup full of water after I'm done shooting even if I will be applying another coat in an hour, though that not be really necessary. When ready for another coat, I dump the water, spray out whatever rema...
by Craig Bumgarner
Thu Jul 28, 2016 3:28 pm
Forum: Glues and Finishes
Topic: Clear grain filler - Waterborne? Epoxy?
Replies: 19
Views: 14808

Re: Clear grain filler - Waterborne? Epoxy?

FWIIW, I've mixed hundreds of small batches (10 grams or less) of System Three, SB112 (and WEST) using the above digital scales and never had a bad batch. I'm picky about getting the measurement right and have been known to throw out a mix unused if I think I might have gotten it wrong. Decanting pa...
by Craig Bumgarner
Thu Jul 28, 2016 12:54 pm
Forum: Glues and Finishes
Topic: Clear grain filler - Waterborne? Epoxy?
Replies: 19
Views: 14808

Re: Clear grain filler - Waterborne? Epoxy?

Have a look on Amazon, the ones that look like the pic below are ~ $14, prime. Multiple sellers. I have two and mix batches of System 3 as small as 2.5 : 1.1 grams successfully. When I go that small, I dispense on to a piece of scrap acrylic sheet and mix on the flat instead of a cup. digital scale....
by Craig Bumgarner
Thu Jul 28, 2016 12:40 pm
Forum: Wood and Materials Q&A
Topic: Clear Plastic Pickguards
Replies: 9
Views: 6105

Re: Clear Plastic Pickguards

Bob, I've been using water, but not detergent. Maybe that is the lick.

Daryl, thanks for that idea, I can imagine that could work better than scissors.
by Craig Bumgarner
Thu Jul 28, 2016 10:52 am
Forum: Wood and Materials Q&A
Topic: Torrefied Spruce Soundboards
Replies: 4
Views: 4633

Re: Torrefied Spruce Soundboards

I have built one with Stewmac's torrefied sitka and am currently bracing up another. Stiffness to weight ratio is outstanding and the first guitar was super loud, bright and articulate. For those of you who use Trevor Gore's target top thickness test, the predicated mass of these are coming out near...
by Craig Bumgarner
Thu Jul 28, 2016 10:36 am
Forum: Wood and Materials Q&A
Topic: Clear Plastic Pickguards
Replies: 9
Views: 6105

Clear Plastic Pickguards

I'm having trouble finding the perfect clear plastic pickguard. Here is what I have tried: Stewmac: .005" thick, comes in large sheets with adhesive backing, cut to size. Nice surface, but adhesive is somewhat lumpy and the pickguard shows little air voids where the lows in the adhesive is not makin...
by Craig Bumgarner
Mon Jul 25, 2016 11:12 am
Forum: Glues and Finishes
Topic: Clear grain filler - Waterborne? Epoxy?
Replies: 19
Views: 14808

Re: Clear grain filler - Waterborne? Epoxy?

I like epoxy for grain fill. It is clear, gets hard, no question about adhesion, does not shrink. It sands well enough, but if you are doing it right, there is not much sanding to be done. I use System Three, mostly because it is very clear and does not get an amine blush. Amine blush attracts moist...
by Craig Bumgarner
Sun Jul 24, 2016 8:35 pm
Forum: Glues and Finishes
Topic: General Finishes Waterbase Topcoat - SM is pushing this - anyone tried it?
Replies: 230
Views: 191120

Re: General Finishes Waterbase Topcoat - SM is pushing this - anyone tried it?

I've used both EV Stain and Gloss recently over epoxy grain fill. In both cases i used shellac over the epoxy as a tinted layer and as a tie coat to the EV. Satin went over the the shellac perfectly, three coats sprayed, sanding lightly with 600 between coats. For the Gloss, shot three coats on day ...