Search found 980 matches

by Bob Gramann
Fri Jan 17, 2020 7:59 pm
Forum: Glues and Finishes
Topic: KTM-9 - compatible waterbased substitute?
Replies: 11
Views: 5170

Re: KTM-9 - compatible waterbased substitute?

I generally use up my EM6000 within 2 to 3 years of purchase and have had no problems with it. The KTM seems to have a much more complicated formulation and I think had a stated shelf life of a year or less. I’ve only used one quart of it in my life, no longer have the can, and don’t miss it. The fi...
by Bob Gramann
Wed Jan 15, 2020 6:40 pm
Forum: Tools and Jigs
Topic: how to avoid fumbling the nut
Replies: 2
Views: 2475

Re: how to avoid fumbling the nut

Great idea! Many times I have gotten out the magnet on the end of the telescoping wand for that very purpose.
by Bob Gramann
Wed Jan 15, 2020 4:33 pm
Forum: Glues and Finishes
Topic: KTM-9 - compatible waterbased substitute?
Replies: 11
Views: 5170

Re: KTM-9 - compatible waterbased substitute?

Target EM6000 will match it pretty well but it is not as hard and scratch resistant. I believe that it was recommended by KTM at one time for repairs. You’ll need to fine sand the KTM to get a mechanical bond.
by Bob Gramann
Sat Jan 11, 2020 10:28 am
Forum: String Instrument Repair: Practical and Political Issues
Topic: Alvarez “bridge”
Replies: 11
Views: 5080

Re: Alvarez “bridge”

I’m going to leave the crack, but I feel like I have to fix the string balls pulling through or there will be a much uglier repair to do later. The pickup is in the bridge part of this concoction. Note the individual saddles. I’m not going there.
by Bob Gramann
Thu Jan 09, 2020 9:30 pm
Forum: String Instrument Repair: Practical and Political Issues
Topic: Alvarez “bridge”
Replies: 11
Views: 5080

Re: Alvarez “bridge”

Steven, thank you for that reference. Now I understand why it looks like it does. This one seems to have a large ebony (or some blackened wood) rather than the T-insert through a maple plate. I don’t know how old the guitar is. The owner has had it about 16 years and says the between pin cracks came...
by Bob Gramann
Wed Jan 08, 2020 11:58 pm
Forum: String Instrument Repair: Practical and Political Issues
Topic: Alvarez “bridge”
Replies: 11
Views: 5080

Alvarez “bridge”

I haven’t worked in one of these before. I would like to believe that the crack in the flush bridge section is of cosmetic consequence only. Does anyone know what the inlay material is? But, the guitar has slotted plastic bridge pins and the string balls are starting to pull up into the bridgeplate ...
by Bob Gramann
Sun Jan 05, 2020 1:30 pm
Forum: Tools and Jigs
Topic: Steam generation
Replies: 8
Views: 4207

Re: Steam generation

The same tool can do both jobs. It’s not like you have to steam a neck every day.
by Bob Gramann
Thu Jan 02, 2020 3:32 pm
Forum: Other Stringed Instruments
Topic: Banjo neck angle
Replies: 5
Views: 3817

Re: Banjo neck angle

I make open back banjos, usually with a 12” rim. I’ve tried chasing a number for what is considered the best neck angle for a banjo. The bluegrass guys seem to think that 3 degrees is optimum, but for a 5/8” bridge, that puts the strings really close to the head at the edge of the rim which isn’t op...
by Bob Gramann
Thu Jan 02, 2020 10:04 am
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: REPAIR
Replies: 8
Views: 4166

Re: REPAIR

I’ve been doing the dental composite with eBay stuff for a couple of years. So far, it seems permanent. It sure is easier than remaking the nut. My experience with the CA plus anything fills in the nut slots is that they are very temporary (but useful when you only have a minute).
by Bob Gramann
Sat Dec 28, 2019 9:48 am
Forum: Tools and Jigs
Topic: Shop air filtration build - Advise welcome
Replies: 23
Views: 10720

Re: Shop air filtration build - Advise welcome

That would be it. Lowes gives a discount when you buy 4. All sizes cost the same, but you get more filter surface the bigger the filter. I use the 20x25. I took one apart. The pleated filter was 8 feet long.
by Bob Gramann
Fri Dec 27, 2019 11:55 pm
Forum: Tools and Jigs
Topic: Shop air filtration build - Advise welcome
Replies: 23
Views: 10720

Re: Shop air filtration build - Advise welcome

This is what I did. It sits on the floor and blows up to the ceiling. I use the 3M Filtrete 1900 filters. I have a duct that I attach to it when I spray to blow the fumes out the window (the box containing the guitar to be sprayed backs up to it in the front). A timer shuts it off so I can clean the...
by Bob Gramann
Tue Dec 24, 2019 2:18 pm
Forum: String Instrument Repair: Practical and Political Issues
Topic: Replace or re-configure rattling truss rod?
Replies: 27
Views: 8803

Re: Replace or re-configure rattling truss rod?

Melted wax is a neat idea, but I worry that it’s not elastic. After a hot day or an adjustment, it may no longer do what it’s needed to do.
by Bob Gramann
Mon Dec 23, 2019 11:11 pm
Forum: String Instrument Repair: Practical and Political Issues
Topic: Replace or re-configure rattling truss rod?
Replies: 27
Views: 8803

Re: Replace or re-configure rattling truss rod?

The round part of the rod is usually covered with shrink wrap tubing. I’ve always used clear silicone caulk and never had one bind up on me. If you really want to use something else, you might try a mockup with another rod like the one that’s in that guitar.
by Bob Gramann
Thu Dec 19, 2019 7:48 pm
Forum: String Instrument Repair: Practical and Political Issues
Topic: Replace or re-configure rattling truss rod?
Replies: 27
Views: 8803

Re: Replace or re-configure rattling truss rod?

I always use the clear silicone caulk for this (the white stuff seems to set hard). Maybe a glue syringe (that plastic thing with the curved conical needle) would be a good way to inject it, or use the standard caulk tube nozzle penetrated with a small drill bit. My caulk tubes always get hard befor...
by Bob Gramann
Thu Dec 19, 2019 4:22 pm
Forum: String Instrument Repair: Practical and Political Issues
Topic: Replace or re-configure rattling truss rod?
Replies: 27
Views: 8803

Re: Replace or re-configure rattling truss rod?

I've repaired that problem before by finding a convenient place to drill a hole into the cavity between the round rod and flat bar and injecting a bit of silicone caulk into the space. You ought to be able to pull a fret and drill an angled hole into the cavity. I don't remember what I used to injec...
by Bob Gramann
Wed Dec 18, 2019 4:18 pm
Forum: Tools and Jigs
Topic: Taking care of dust in the shop
Replies: 14
Views: 5730

Re: Taking care of dust in the shop

I had a Dust Deputy that I used with my Ridgid vacuum (and a HEPA filter). I supported it on top of the vacuum with a bracket that I made. It worked very well. But, I eventually tired of the bulk and clumsiness of the vacuum in my shop, so I tried using vacuum bags instead. The bag/HEPA filter combi...
by Bob Gramann
Thu Dec 12, 2019 1:34 pm
Forum: Glues and Finishes
Topic: Drop filling
Replies: 9
Views: 5019

Re: Drop filling

I like that. It solves one of my problems. I’m gonna make one, too.
by Bob Gramann
Mon Dec 09, 2019 11:12 pm
Forum: Bowed Stringed Instruments and Bows
Topic: books on violin bow construction
Replies: 7
Views: 4020

Re: books on violin bow construction

When you get there, pop me a private message or an email (you can find my address on my website) and remind me of this conversation and your need for the book. I won’t remember this conversation. I started my fiddle about 10 years ago. I’ve carved the outside of one plate and made the ribs. I only w...
by Bob Gramann
Fri Dec 06, 2019 10:05 am
Forum: Bowed Stringed Instruments and Bows
Topic: books on violin bow construction
Replies: 7
Views: 4020

Re: books on violin bow construction

I just got one “How to Make a Violin Bow” by Frank V Henderson. I bought it from a maker who’s selling out his library. Abebooks has a copy for $200. I haven’t opened this one yet and don’t plan to make a bow anytime in the near future. Maybe I could loan it to you?
by Bob Gramann
Mon Dec 02, 2019 9:46 am
Forum: Flat-Top Acoustic Guitars and Bass Guitars
Topic: White Spots on Spruce Top
Replies: 18
Views: 5782

Re: White Spots on Spruce Top

If you start with shellac on the wood before you refinish it, over the years the light spots will blend with the older, untouched surface. If you dye it, over the years the colors will move apart as the dye ages differently than the natural wood.