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Private member DiscussionElectric Builds

Nut slot and action trouble

Hi everyone - I recently ran into trouble making new nut for one of my necks that needed to be trued and re-fretted. I roughed in the nut as usual and then, with the bass guitar fully assembled and strung up, I started cutting the slots to depth. I use the StewMac digital nut slot depth gauge and have had good results in the past. I marked the nut's lowest points (radiused) using the guitar nut scribe tool (first time using this!) and c…

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Ian Davlin
That's actually not how that tool was intended to be used. That is essentially plotting a like to the top of the fret. With a bass, you would need much more than that. When James and I came up with th…
Private member DiscussionAcoustic Builds

Cracks in acoustic top

I’ve been building electric for a few years but decided to make an acoustic this time. I have some German spruce panels I was going to use for the top. While running it through my drum sander to dimension it, I noticed that both panels have matching 6-8” cracks so the original blank must’ve had a split pre resawing. Would I still have good results if I glue the panels and move on or should I buy a new top set? (I can’t return what I have…

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Private member
Thanks for talking me down. That’s the right decision. Even though it’s my ‘learning’ build for my own use I need to build it like I would for one of my electric customers. The cheap in me almost won.…
Private member DiscussionAcoustic Builds

Using Maple for Back Inside Center Seam

I just read a small note in a new OM plan (GenOne) I'm using that suggested maple as an alternate wood for the inside center strip between the back braces. Wondering what would be the downside of that (passive back). A curly maple strip would certainly be attractive, and the mass/ stiffness difference is virtually negligible for a passive back. Thoughts? I'm cutting braces this week...

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Private member
Flat sawn maple is what all the old Gibsons used for a center strip from the 1920's to the 1970's at least. They are something like .900in wide and .040in thick. It had to have been offcuts of their m…
Private member DiscussionAcoustic Builds

Steam Box Idea... What's wrong with this idea?

Speaking of Trevor Gore... I've started using falcate bracing on my ukuleles and in making the braces, 3 strips of .0625" spruce are bent and then put in a bent lamination glue up rig using epoxy. Bending spruce is no fun on a hot pipe. It's slow, fussy, the fibers want to delaminate. I have been thinking about building a small dedicated steam box. Pulling all 3 of the strips out at once and bending them over a form with a metal back…

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Ian Davlin
I tried it once for trying to bend mandolin sides. This was in 2006, back when the internet wasn't nearly as useful as it is today, so the attempt was pretty incomplete I think. If I remember correctl…
Private member DiscussionAcoustic Builds

Trevor Gore on tucking top braces into linings

I'm reading the Design book of the Gilet/Gore set (2nd Edition) and ran across something that surprised me. Under "Top bracing layout - guidelines" (Section 4.4.8, pp 4-52) Gore writes, "Brace ends that are housed into the linings stiffen the edge of the soundbard considerably and so constrain its mobility. Unless you are chasing a particular effect, it is generally not very beneficial to house the lower bout braces into the linings." My…

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Private member
That makes a lot of sense -- thanks. And yeah, I build for fingerstyle -- especially with OMs -- so that may be more of what I want. I'm building just for myself right now, so I only need to please my…
Private member DiscussionElectric Builds

Guitar Building Philosophy...

Hey everyone, I had a question on guitar building and overcoming something of a mental hurdle that I have. Quite awhile back I had access to a CNC machine and routed some Stratocaster bodies which you can see in the pictures. I was mostly pleased with how these turned out, but there are a couple of issues. On the cherry bodied guitar, the seam is off center and I had some blowout at the upper horn location, which caused me to try and cu…

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Private member
I appreciate the response and the perspective, thank you! I am curious, since I'm a rather inexperienced builder, I'm torn between being a perfectionist, versus seeing a project through and cracking e…
Private member DiscussionAcoustic Builds

Go bar deck bars source?

I’ve used thin plywood slats forever in my go bar deck, but I think I’m ready to try fiberglass bars. What’s the consensus on a good source for these? Also for some reason, I seem to remember seeing someone using fiberglass slats. Maybe they were manufactured for sail stays? As in on a sailboat. Thanks in advance for any ideas.

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Private member
I use fiberglass driveway markers from Lowes or Home Depot. They work great and are cheap and easy to get. If you want some extra padding dip them in a tool coating.
Private member DiscussionDesign and Testing

Interlocking Scarf Joint

A while back I saw a Canna Guitars video on Instagram and thought his use of the “wave” scarf joint between his neck and headstock was an interesting use of CNC. But it got me thinking about other options, and this idea percolated in my brain: Cut a regular scarf joint, but then using a CNC cut a tenon into the neck, and a mortise/dado into the headstock. (Obviously you could also do this by hand with a saw and chisel). The joint would i…

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Ian Davlin
Dude, that looks pretty hip. Do you mind if I add this to the council of elder show ?
Private member DiscussionAcoustic Builds

Missing soundhole braces Gretsch 6021 Town&Country Rancher flattop acoustic

Technically this is a repair, but I thought there would be some crossover with building, so I posted here as well. A 1950s Gretsch Town & Country Rancher 6021 is missing the two braces on either side of the sound hole (see photo). Because this is such a wide instrument (17” lower bout), I’m thinking that installing those missing braces will help with the stability of the top in addition to repairing the cracked/loose ladder braces. The…

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Private member DiscussionElectric Builds

Fender Double-tap humbucker problem

Hello all, A customer dropped a recent American Professional II Strat to have a Double-tap humbucker installed at the bridge. I rewired the guitar following Fender's schematic (see below) and installed a stacked 250 and 500k volume pot, treble bleed PCBs and push-push coil split/tap for this pickup. All went very well, until I tried it at switch position 2. Sure enough, the new unit does not play well with the others and combining delive…

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Understood. Plus the pole spacing is slightly different also. Just tossing out troubleshooting ideas.
Private member DiscussionDesign and Testing

Guitar frequency testing in the white.

In Michael Baskin's on-line video, he uses a frequency test of a guitar in the white to determine whether to thin the lower bout before finishing. The guitar in the video has a bridge attached. I'm wondering if this is the final bridge or something temporary. If the latter, how do the results compare to the final frequency analysis? I've used a bolt-on bridge to do the same, but don't have enough data points to draw a firm conclusion…

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I would probably blue tape/super glue the bridge in place vs bolts which would change the weight somewhat radically.
Private member DiscussionDesign and Testing

Testing Mandolin Top Wood Billets

For my current mandolin build, I set out to answer 2 questions: 1. Whether to use physical deflection or frequency analysis to measure stiffness, and 2. How well can I measure wood quality in rough sawn form? (T. Gore says it needs to be planed smooth and rectangular for frequency analysis.) I have 4 different topwood species available for my current build: California Sitka, Englemann, Lutz, and Coastal Redwood. The billets range from 37…

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Private member
Hello Neil, I also measure wood properties when I build mandolins and what you did is very similar to what I have tried, so I'd like to share some thoughts and comments. From my engineer point of view,…
Private member DiscussionAcoustic Builds

Side bending - actual problem or isolated freak out?

Hello All! My first post and I'm very happy to be here and share the highs and lows of this pony ride. After years of bending sides on a hot pipe or bending machines belonging to 'other people', I finally built myself a bending machine. Functionally it is great, but the result on some test material was far from great. See pictures attached. What you see here is a doug fir 'test side' that certainly came out guitar shaped, but oh my, what…

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Hi Benn: My layers are: Metal slat heat blanket 1 wood heat blanket 2 Metal slat
Private member DiscussionFinish New Builds

Sparkle Burgundy Gibson Finish

Hi, I'm wondering how to achieve this color on a guitar. It's Sparkle Burgundy. I suspect the clear varnish has yellowed with age, which is why it has a coppery effect depending on the light. Can you recommend a varnish to achieve this effect? ​​Should I use a UV lamp after varnishing to age the varnish? Thanks in advance for your help.

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Ian Davlin
This is a guess, but I think that is a red translucent finish over bronze powder. Probably gold top powder. Some of the red has done been UVed out and the clear coats have turned yellow.
Private member DiscussionElectric Builds

bass VI wiring question

Hello, I am building a bass VI for a customer. As with a Fender Bass VI he wants a control plate with 4 slide switches. 1 on/off switch for each of the 3 pickups, but with the 4the switch he wants to control the phase of the middle pickup. Any suggestions as how I should wire that? thanks!

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if you use a regular jaguar pickup, remember to solder a ground wire in the claw like a tele neck 3 wire pickup
Private member DiscussionElectric Builds

Venturing into the unknown...

Hello friends - I am a bass guitar builder who is considering building a neck-through Flying V-style guitar with a 25.5" scale length and a Floyd Rose tremolo bridge. I have not built any neck-through instruments and would appreciate any guidance on where to begin with respect to laying out the design, in particular, getting the neck angle right and the headstock angled properly. Any resources are welcomed and if someone has any interes…

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Private member DiscussionAcoustic Builds

Build Sheet for acoustic builds?

I'd like to start doing a hard copy of notes on my guitars. Does anyone have a build record sheet that they could share? I have some ideas of what I want to put in it, but I'm open to suggestions. Ultimately I'd like to photocopy a bunch of them and get them bound into a book for my benchtop.

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I just use, and take notes on, my order form which has all the specs/appointment info I need to build whatever the customer orders.
Private member DiscussionElectric Builds

What really effects tone?

Ok, I'm a new builder and I've only done solidbody electrics so far, so this question is related to only those. In my opinion, these are the things that have the most impact on tone, listed in order from most influential to least. Have at it! Pickup/electronics, neck joint type, neck construction (including fret size/material), scale length, bridge type, bridge saddle material, tone wood Of course, this only takes into account the guitar.…

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I'm not an expert electric builder but I think I'd go something like pickups 70% Body type (archtop/solidbody/variations thereof) 15% setup 10% vibes 5%