Search found 19 matches

by pmatolcsy
Tue May 16, 2017 6:44 am
Forum: Instrument Builders Forum
Topic: Non Autoclaved Carbon Fiber
Replies: 3
Views: 4946

Re: Non Autoclaved Carbon Fiber

The piece I am considering strengthening is is a is a block of Douglas fir 3"x 12" long 1.5 thick at centre tapering to .5" at each end that will serve as a combination upper transverse brace ,sound hole edge and neck block. I guess I could vacuum bag the part to protect it from humidity during auto...
by pmatolcsy
Mon May 15, 2017 8:06 am
Forum: Instrument Builders Forum
Topic: Non Autoclaved Carbon Fiber
Replies: 3
Views: 4946

Non Autoclaved Carbon Fiber

I copied this post from the Trevor Gore section Hi all, I'm considering some carbon fiber use in my next build. I built a Lotus 7 type car about 10 years ago , and when I did my reaearch , the consensus was that non autoclaved carbon fiber was more of a cosmetic thing over fine woven aircraft qualit...
by pmatolcsy
Mon May 15, 2017 12:28 am
Forum: Contemporary Acoustic Guitar Design and Build - Trevor Gore
Topic: Non Autoclaved Carbon Fiber
Replies: 2
Views: 5528

Non Autoclaved Carbon Fiber

Hi all, I'm considering some carbon fiber use in my next build. I built a Lotus 7 type car about 10 years ago , and when I did my reaearch , the consensus was that non autoclaved carbon fiber was more of a cosmetic thing over fine woven aircraft quality fiberglass when used with a high quality epoxy...
by pmatolcsy
Mon May 01, 2017 8:50 pm
Forum: Instrument Builders Forum
Topic: Archtop vs Steel String Acoustic Sound
Replies: 8
Views: 9138

Re: Archtop vs Steel String Acoustic Sound

Yes I'm comparing an arch top and a flattop with the same body volume.What I meant was when you alter the shape of the top it alters the body volume.Since it does that, in order to be comparing the same two guitars you would have to alter the height of the sides to compensate. Thats what I meant by ...
by pmatolcsy
Mon May 01, 2017 10:38 am
Forum: Instrument Builders Forum
Topic: Archtop vs Steel String Acoustic Sound
Replies: 8
Views: 9138

Re: Archtop vs Steel String Acoustic Sound

What I mean is total body volume. like if you filled the two guitars with water and poured it out they would measure at the same amount. that and the port size determine the helmholtz resonance, what you get when you hum in the sound hole.
by pmatolcsy
Sun Apr 30, 2017 8:40 pm
Forum: Instrument Builders Forum
Topic: Archtop vs Steel String Acoustic Sound
Replies: 8
Views: 9138

Re: Archtop vs Steel String Acoustic Sound

Add grain runout to the list
by pmatolcsy
Sat Apr 29, 2017 10:13 pm
Forum: Instrument Builders Forum
Topic: Wipe-on finish for acoustic guitar
Replies: 61
Views: 81095

Re: Wipe-on finish for acoustic guitar

I like to think of truoil over shellac as french polish without all the work plus alcohol and water resistance.
by pmatolcsy
Sat Apr 29, 2017 9:52 am
Forum: Instrument Builders Forum
Topic: Archtop vs Steel String Acoustic Sound
Replies: 8
Views: 9138

Archtop vs Steel String Acoustic Sound

Hi, I'm designing my second archtop guitar. Every archtop I've ever played sounds different and to my ear at least, not as desirable as a traditional steel string acoustic. I've read Benedetto on Archtops and Somogyi on the resposive guitar. So here's my question. Assuming Strictly Acoustic (no pick...
by pmatolcsy
Sat Apr 29, 2017 7:32 am
Forum: Instrument Builders Forum
Topic: How to design a guitar elec shape with cad
Replies: 2
Views: 3629

Re: How to design a guitar elec shape with cad

I use Sketch up . Its free and very easy to use once you understand CAD. You can extrude,scale rotate create componenents and groups to build a fairly accurate model quickly. Heres two pics of a build I'm planning.
by pmatolcsy
Sat Apr 29, 2017 7:13 am
Forum: Instrument Builders Forum
Topic: Total string length
Replies: 2
Views: 3300

Re: Total string length

Sorry for the dumb post. Brain wasn't working so great that day. I measured the set I'm planning to use. Plenty of room
by pmatolcsy
Sat Apr 29, 2017 7:09 am
Forum: Instrument Builders Forum
Topic: Wipe-on finish for acoustic guitar
Replies: 61
Views: 81095

Re: Wipe-on finish for acoustic guitar

Hi, I have used Tru-oil successfully on a few of my electric builds. Just a warning it will not set on anything in the Dhalbergia family. Apparently the oils in the wood interfere with the polymerization process. The fix is to build up shellac until all the wood is covered and level. I used a brush,...
by pmatolcsy
Sat Apr 29, 2017 7:05 am
Forum: Instrument Builders Forum
Topic: Wipe-on finish for acoustic guitar
Replies: 61
Views: 81095

Re: Wipe-on finish for acoustic guitar

Hi, I have used Tru-oil successfully on a few of my electric builds. Just a warning it will not set on anything in the Dhalbergia family. Apparently the oils in the wood interfere with the polymerization process. The fix is to build up shellac until all the wood is covered and level. I used a brush,...
by pmatolcsy
Sun Apr 23, 2017 12:33 am
Forum: Instrument Builders Forum
Topic: Total string length
Replies: 2
Views: 3300

Re: Total string length

new logo from an old wax seal of my family crest
by pmatolcsy
Sat Apr 22, 2017 11:59 pm
Forum: Instrument Builders Forum
Topic: Total string length
Replies: 2
Views: 3300

Total string length

Hi everyone, I have been searching high and low for this info and remembered the friendly responses I received here in the past. I am designing a (hopefully) unique new arch top guitar. Does anybody know what the total average non custom supplied string length from major manufacturers are ? I usuall...
by pmatolcsy
Thu Oct 31, 2013 9:02 am
Forum: Instrument Builders Forum
Topic: veneers and neck-through blanks
Replies: 10
Views: 10663

Re: veneers and neck-through blanks

I am currently building a neck through stratish custom with a birdseye fender "skunkstripe " style one piece neck . I fret sloted the 2" x 3.5" neck blank whole then milled the truss slot in the back. Then profiled neck and incorporated the flame maple laminate body. Bound the fretboard and still ha...
by pmatolcsy
Thu Oct 31, 2013 8:38 am
Forum: Instrument Builders Forum
Topic: Douglas fir for OM style guitar top?
Replies: 39
Views: 36973

Re: Douglas fir for OM style guitar top?

thanks so much for the thoughtful replies. I too have built tops and braces with perfect runnout free ,old growth ,very dense ,high ring count true douglas fir. Unfortunately its as brittle a glass of the same thickness. No doubt it is strong in compression, flexion tension. It does not appear to be...
by pmatolcsy
Tue Oct 22, 2013 6:40 pm
Forum: Instrument Builders Forum
Topic: Douglas fir for OM style guitar top?
Replies: 39
Views: 36973

Re: Douglas fir for OM style guitar top?

sorry to bring this up so much later. Great info. Believed so myself for years .In our building code(canada) can span greater distances than red,white or blue spruce. Have intuitively made very thin tops from it that seem to sound great. Works as braces for same reason. Thanks for the confirmation. ...
by pmatolcsy
Mon May 20, 2013 6:10 am
Forum: Instrument Builders Forum
Topic: effect of neck length on tone
Replies: 2
Views: 4313

effect of neck length on tone

OK , here goes dumb question #1 I've read quite a bit about the tonal difference between a 14 fret and a 12 fret to body neck. Is the majority of the tone difference coming from the neck length or the bridge placement on the soundboard ? I'm thinking of building a double cutaway guitar( about dreadn...
by pmatolcsy
Thu May 16, 2013 10:44 am
Forum: Instrument Builders Forum
Topic: My Latest Addiction!
Replies: 4
Views: 4970

My Latest Addiction!

Hello All Just thought I would introduce myself . I am an amateur builder from Canada. I just sort of fell into this about 18 months ago . I have been a guitar player and woodworker for almost 40 years. It all stated about 18 months ago when a fellow bandmate showed me a Youtube video of Andrew Wint...