Search found 34 matches

by John LaTorre
Fri Jan 11, 2019 5:19 pm
Forum: Bowed Stringed Instruments and Bows
Topic: Trapezoid cello
Replies: 0
Views: 3528

Trapezoid cello

Hi, all, I recently came across a book called Making a simple violin and viola by Ronald Roberts. He'd built several violins and violas with trapezoidal soundboxes, based on some experimental work done by Savart about a century ago. He claims that the sounds are comparable to the conventional violin...
by John LaTorre
Fri Jan 11, 2019 4:34 pm
Forum: Jam Session
Topic: Instructions for using a chisel
Replies: 20
Views: 19318

Re: Instructions for using a chisel

I met a guy in the tonewood business on monday who had part of the tip of his left index finger missing thanks to a bandsaw. He has some nice guitars but can't really play them any more. That didn't stop Django Reinhart. Over the years, I've done horrible things to my right hand (I'm left-handed). ...
by John LaTorre
Sun Oct 22, 2017 11:44 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: D'Addario string gauge mixup
Replies: 6
Views: 6000

Re: D'Addario string gauge mixup

Clay Schaeffer wrote:D'Addario posted a guide on line for telling counterfeit strings from authentic.

http://www.daddario.com/upload/DABR_...wRes_12587.pdf
That's the first place I went. Ball ends were the right shape, wrapping looked good, so I assumed that the strings were the genuine article.
by John LaTorre
Sat Oct 21, 2017 9:58 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: D'Addario string gauge mixup
Replies: 6
Views: 6000

D'Addario string gauge mixup

Hi, all: While stringing up a new build with D'Addario EJ16 strings, I happened to notice that the color-coded ball ends on the two upper strings were switched ... the first string's was purple, and the second string's was silver. I caught the error right away, but got to wondering if anybody else h...
by John LaTorre
Sat Oct 21, 2017 9:47 pm
Forum: Glues and Finishes
Topic: Fretboard oil
Replies: 9
Views: 5439

Re: Fretboard oil

Just to expand on my comment, linseed oil is a drying oil - similar to a varnish. The difference is that "boiled" linseed oil is partially oxidized, so it dries and cures really fast. Raw takes several days, sometimes more than a week to dry, and longer than that to fully cure. Old time woodworkers...
by John LaTorre
Sat Oct 21, 2017 9:43 pm
Forum: Jam Session
Topic: Instructions for using a chisel
Replies: 20
Views: 19318

Re: Instructions for using a chisel

Chisels should be very sharp on one end only. That end should not be pointed at body parts. I have 4 stitches in my left hand as reminder of that simple rule. Remember to keep the sharp side directed away from the parts you want to keep. -Jim I second that, having put a nice gash in my off-hand ind...
by John LaTorre
Mon Jun 15, 2015 1:40 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Optimum thickness for red cedar soundboard?
Replies: 21
Views: 13860

Re: Optimum thickness for red cedar soundboard?

Alan Carruth wrote: All I can do is tell you how I do it, and that may not be your cuppa.
Good enough for me.
by John LaTorre
Wed Jun 10, 2015 11:11 am
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Optimum thickness for red cedar soundboard?
Replies: 21
Views: 13860

Re: Optimum thickness for red cedar soundboard?

Thanks for your response, Alan. I'm going to go for 2.8. If it ends up thinner than that by a wee bit, I can always make the braces a little taller. In fact, that might be the way to go, since I can always modify the bracing when the strings are off at string changes, reducing their height if the bo...
by John LaTorre
Tue Jun 09, 2015 4:09 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Optimum thickness for red cedar soundboard?
Replies: 21
Views: 13860

Re: Optimum thickness for red cedar soundboard?

Thanks for your responses. The scale length is 24.9", and it's going to be a finger-picking guitar. I'll be putting either lights or extra-lights on it. As for the feel, I'm really not skilled enough to give an opinion, but it seems a little stiffer in flex than the spruce tops I've used before. I'v...
by John LaTorre
Tue Jun 09, 2015 12:25 am
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Optimum thickness for red cedar soundboard?
Replies: 21
Views: 13860

Optimum thickness for red cedar soundboard?

I'm building a 000 12-fret with a western red cedar top. It's currently just a shade over 3mm thick. I've gotten two conflicting opinions from luthiers about what the optimum thickness should be: one says 3.5 mm and the other says 2.5 mm. What has your experience been with this material?
by John LaTorre
Thu Jun 04, 2015 2:46 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Best place to locate a battery box?
Replies: 1
Views: 1229

Best place to locate a battery box?

I'm building an acoustic guitar in which I'm installing an active microphone system (a Baggs Lyric). The unit came with one of those little nylon battery bags you're supposed to attach to the inside of the guitar with Velcro. Instead of using that, I'm going to build a battery case into the body. (I...
by John LaTorre
Wed Apr 15, 2015 7:23 pm
Forum: Tools and Jigs
Topic: My new favorite tool - the Scraper!
Replies: 22
Views: 9674

Re: My new favorite tool - the Scraper!

This is a tool I've come to use all the time: http://www.stewmac.com/Luthier_Tools/Types_of_Tools/Scrapers/Scraper_Burnisher.html t's really a "last step" tool for setting the hook. Most of the real work in sharpening scrapers, like sharpening plane blades, is truing up the surfaces. The flat surfac...
by John LaTorre
Wed Mar 11, 2015 4:23 pm
Forum: Archtop Guitars and Bass Guitars
Topic: Any successful method of jointing backs and tops without power jointer or planes?
Replies: 28
Views: 10918

Re: Any successful method of jointing backs and tops without power jointer or planes?

Greg, make sure that your method didn't round off the joint in the sideways axis. This can happen when working freehand. The joint may look light tight, but can still have open places in the joint that can result in subsequent joint failure. That can be prevented by sandwiching the soundboard or ba...
by John LaTorre
Wed Mar 04, 2015 2:07 pm
Forum: String Instrument Repair: Practical and Political Issues
Topic: Zero fret
Replies: 34
Views: 27595

Re: Zero fret

If you're interested in retrofitting a guitar to a zero fret, there's a company that makes that easier:

http://www.zeroglide.com/details.asp

I haven't tried their product, but it seems sound in theory, and will save you a lot of experimentation, tool buying, etc.
by John LaTorre
Thu Feb 19, 2015 4:25 pm
Forum: Electronics
Topic: JJB SHC-200 -- anybody using one?
Replies: 4
Views: 3000

JJB SHC-200 -- anybody using one?

I've been using the JJB Prestige 330 in a couple of my guitars, and am getting another build off the ground. When I went to their website, I noticed a new product of theirs, the SHC-200, which seems to be a version of the 330, using the same transducers, but with passive volume and tone controls. No...
by John LaTorre
Tue Jan 13, 2015 4:31 pm
Forum: Other Stringed Instruments
Topic: Short Mtn Dulcimer Scale Length
Replies: 14
Views: 8656

Re: Short Mtn Dulcimer Scale Length

Very pretty. I'm glad it worked out well for you.
by John LaTorre
Thu Jan 08, 2015 10:14 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Guitar Finishers Recommendations
Replies: 7
Views: 4397

Re: Guitar Finishers Recommendations

I have used the Epiphanes gloss varnish for a couple mandolins and was pleasantly surprised how it went on and how good it looks. I have been told the oil varnish from Ace Hardware stores has a high phenolic content and dries very hard, but I haven't tried it yet. I used to use the Behlen's Rock Ha...
by John LaTorre
Wed Jan 07, 2015 5:18 pm
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: Guitar Finishers Recommendations
Replies: 7
Views: 4397

Re: Guitar Finishers Recommendations

I used to send my instruments out for finish but due to occasional shortcomings in the service I just bit the bullet and went back to doing my finising. Nobody cares about your stuff like YOU do. True, but care as I do, I'm still not satisfied with my work. Is the guy you used to use still around? ...
by John LaTorre
Sun Jan 04, 2015 2:14 pm
Forum: Jam Session
Topic: December Giveaway
Replies: 43
Views: 18195

Re: December Giveaway

Congrats to the winners!
by John LaTorre
Sun Jan 04, 2015 2:12 pm
Forum: Other Stringed Instruments
Topic: Short Mtn Dulcimer Scale Length
Replies: 14
Views: 8656

Re: Short Mtn Dulcimer Scale Length

Andrew Porter wrote:I'll post a picture and let you know how it turned out.
Great! I'd love to see it!