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Private member DiscussionCAD/CAM

F5 Modeling attempt.

This is a repost from the main feed so it is in the correct forum. The recent F5 CAD modeling video inspired me to take a stab at it. I use Fusion 360 and have already completed a full A5 model that I’m using to prepare a lot of parts for my CNC. The F5 top seems intimidating. I focused on modeling the scroll alone for now. I didn’t pay attention to following a plan, or having perfect dimensions, or getting the curves to look perfect th…

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Private member
This is looking really great. If you'd like to come on 3d club and talk about it, let me know. The next meeting is this coming Monday and we'll be talking more about the top modeling.
Private member DiscussionAcoustic Builds

Archtop f-hole placement: how precise?

I was finally able to model something like a Gibson L7 top plate! Now I'm trying to build my f-holes... My only reference is the Benedetto archtop book, where it puts a few rules of thumb about how the f-holes should be placed. My question is, how precise are we talking here? One of the rules of thumb is that the bridge intersects at the midway point of the f-holes. Does this imply that the f-holes are at a certain location on the plate,…

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Private member
Possibly answering my own question...given my current drawing, there is 11.157" from the f-hole point I chose to the end of the body. If you assume that's the 14th fret, it implies a 26" scale length…
Private member DiscussionNeck Reset Database

1980 Daion 12-string

Model is "The '80". Daion built some nice guitars in the 70's and 80's out of a small shop in Japan. Nice old all mahogany 12 string. It's my instrument so doing a bolt on conversion. Forget about trying to get the neck off one of these (apart from Kung Fu) - neck construction seems to be based on multiple dowels (a bit like some Japanese furniture I suppose)

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Private member DiscussionAcoustic Builds

Bending Crelicam Ebony

A client has asked me to build an acoustic guitar using crelicam ebony for the back and sides that he is getting form Stewmac. I have heard it's challenging to bend, and this will be an OM so the waist is pretty tight. Any thoughts or suggestions for bending these sides? I use a homemade bending machine modelled after LMI's latest design (may they rest in peace) and I have had good success bending rosewood, walnut, mahogany, and pau fer…

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Private member
See the Michael M and Michael B entries in the "Side Bending" thread below
Private member DiscussionElectric Repair

Bigsby B60 vs B70

I've got a Gretch G2420T with Bigsby B60 on my repair bench. When the customer plays, the strings are coming out of the saddles. We're thinking of replacing the B60 with a Bigsby B70 to increase the break angle over the saddles and bridge. Any concerns with that? I noticed the B70 is only on center block models. The G2420T is hollow body. Will the inside braces support the B70 enough?

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Ian Davlin
That B70 appears to have the roller out in front to keep the strings down. If it's in the financial cards, I'd think that could work. The question is whether the extra length is going to be weird.
Private member DiscussionGeneral

Neck Shim spreadsheet

First time here on the forums, not sure how often I'll check in, but thought this the best place to post it. Was playing with an idea proposed by Buck Van Laarhoven on a parametric model for bolt-on neck shims, and found the formulas I wrote up translated easily to Taylor and conventional acoustic neck joints so decided to add boxes for those as well. I'm not well versed in Google Sheets, but couldn't see a way to upload the file direct…

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Hey Dave Recommend you make a copy of the file to load up. Then your original Google sheet won't be altered by another user in the shared file. You can do that by going to file and click 'make a copy…
Private member Discussion3D Printing

3D scanner

Anyone use a 3D scanner to make models for printing, or CNC? I've noticed a number of inexpensive scanners on the market that appear to be an able to scan with fine detail and accuracy. I've wondered if they could be used to scan a guitar neck, or arch top mandolin plate to then cut on a CNC after tweaking in a CAD program.

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Private member
That's kind of what I thought. The scan comes out dirty and needs more manipulation in software which can be more work than drawing it in the first place. I was curious as there are now numerous ads…
Private member DiscussionGeneral

Custom cut neckplate

I am restoring a bass guitar unknown make and model and it has an odd sized necklace (smaller then standard necklace.) Does anyone know of anyone that can cut a custom necklace?

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Private member
No, I don't do any 3d modeling
Private member DiscussionNeck Reset Database

Jester W160 neck joint

This is an early 80's Jester. The only identification is the label inside which appears to show the model number as ACW160, though I've only seen reference to model W160 online. There is scant information about Jester guitars online, and some of it seems inconsistent. This was most likely made in either Holland or Romania. Online information indicated that this would have a dowelled neck joint, but it clearly doesn't. This was a very di…

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Neck block side
Private member DiscussionAcoustic Repair

2006 Martin 000C-16GTE Neck Reset Question- M&T

Hey Everyone- I have a Martin 000c-16 that is in bad need of a neck reset- Anyone have any experience with this particular model? It’s a mortise and tenon. Will I have more luck using steam or foam cutters? Anything to watch out for? UPDATE-So I think i’m good now. I found a in-depth write up on this model M&T reset process in the new Martin Repair Guide - by Patrick DiBurro Great book BTW- Thanks!

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Ian Davlin
I haven't checked his book, but one thing I like to do is take that insert out, throw one in with a little more bite to the threads and put it in with epoxy. I also cap over the end of the tenon with…
Private member DiscussionGeneral Business

Business Model Presentation Youtube link

I just finished a new video. Its a PowerPoint slide show with scripted narration and commentary by me. The topic is my business model and workflow system. Its about 12 minutes long. Take a look and let me know if you have any feedback good or bad. It's easy enough to edit if there is anything anybody wants me to include that I didn't think of on my own

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Private member DiscussionNeck Reset Database

Seagull S6 2005

This came to me all smashed up and I rebuilt it with a new sitka top. The neck was bolted on with the fingerboard extension glued to the (original) cedar top. There is a block under the extension with the end of the truss rod running through it. The bolt heads are recessed in the neck block and in another example, I've seen there is a label over the neck block to hide the bolt heads. I don't know if the two brass shims next to the bolt…

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Ian Davlin
Thank you for adding to the Neck Joint Hall of Fame Thomas !
Private member DiscussionNeck Reset Database

Morris F-10 or A-6? Early '70s

The label is torn so not sure of the model, but it looks like F-10 or A-6 examples online. I even saw one that had both A-6 and F-10 printed on the same label. Anyway, it's a lower end guitar with a doweled joint. The glued joint damaged the top layer of the laminated sides. It was like that when I received it.

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Private member DiscussionSELL! SELL! SELL!

Woodseses

Howdy folks, Y'all may know that over the years I've had my hands in all sorts of varying degrees of our beloved lutherie bizz; from my current modest restoration shop focus to work for 'The Man' in big production. Throughout this I've built up contacts of various sorts and recently, as I've started to get back into building (to some degree) I've had some of these contact ask me about moving some wood on their behalf. So, here I am wo…

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I emailed you!