topic Re: Modeling a guitar neck thru transition in Fusion Design, Validate & Document Forum

Modeling a guitar neck thru transition

blakedMSFJP — Tue, 09 Feb 2021 17:22:13 GMT

Hi,
I'm facing a problem with my guitar project with a neck through construction.
My attempt is not satisfying enough.

After modeling the volute, I think it's the final boss of guitar modeling 🙂

The transition is more smooth on the pictures :

I pray the god of Fusion 360 to solve this issue.

Re: Modeling a guitar neck thru transition

laughingcreek — Tue, 09 Feb 2021 20:40:04 GMT

you'll probably need to do some surface lofting to get a transition like that. attached is an example with the time line on so you can step through the steps. this is a pretty rudimentary approach (I had to stitch the surfaces at a whooping .05 mm), but I think it should be good enough for your purposes. Particularly if the goal is to CNC the part. If you want to use it for high quality renders we might need to get a little more sophisticated with the lofts.

Re: Modeling a guitar neck thru transition

jda70az — Tue, 09 Feb 2021 23:21:42 GMT

Here is another one. Pretty sure it's made by laughingcreek.

Also that's not a good way to attach a neck to a body.

You want a pocket to glue the neck into.

See Gibson Les Paul body. Set Neck construction.

Re: Modeling a guitar neck thru transition

blakedMSFJP — Thu, 11 Feb 2021 12:00:47 GMT

Thanks for this quick reply, I guess this can solve double cut guitar.
I'll try this method on a telecaster (single cut).

Why should I use a neck pocket with a set neck construction ?
I'm a bit curious.

Re: Modeling a guitar neck thru transition

jda70az — Thu, 11 Feb 2021 22:33:51 GMT

Because the strings pull up on the head stock pushing the heel down.

A pocket secures the heel in place. Stops it from moving around.

Also how are you going to glue that in place?

You did a really good job on the model by the way.

Re: Modeling a guitar neck thru transition

blakedMSFJP — Fri, 12 Feb 2021 10:52:39 GMT

Thanks !

I want to build the guitar with :

- String thru body

- Multi-ply neck with Padauk, Wenge and Maple

- 14° headstock glued

- Maybe carbon fiber reinforcement rods

I guess this construction will be safe enough, here is my drawing to glue elements (without 14° headstock) :

Re: Modeling a guitar neck thru transition

tysondenobrega — Sun, 06 Feb 2022 14:55:20 GMT

Thanks for the examples all! I'm about to build my first instrument, the heel transition has been a real head scratcher. For me organic shapes/transitional geometry is hard outside of Rhino/Grasshopper.

I am not a musician, but I have done some design, engineering and manufacturing. I'm having trouble understanding why the through neck is inherently inferior to any glued set neck(other than ease of manufacturing). With proper grain selection I would think it's stronger than a glued interface(regardless of surface area). If a truss rod is capable of providing enough force for minor long term adjustments in any guitar, why wouldn't the strength of a tree with long continuous grain be an excellent choice for a back bone?

Re: Modeling a guitar neck thru transition

laughingcreek — Sun, 06 Feb 2022 15:40:08 GMT

"I'm having trouble understanding why the through neck is inherently inferior"

It's not. Don't know why that guy said that.

Re: Modeling a guitar neck thru transition

matthewrjacobs — Sun, 06 Feb 2022 16:24:52 GMT

Probably the best approach is surface lofts and patches. It can be done with solid sweeps and lofts, but that approach is probably harder to get good results. Below is a combination of approaches, not my best work, but it's OK.

I would recommend watching some of Austin Shaner's videos on YT. They are primarily guitar related and done at a good pace for learning how to do this stuff.

Re: Modeling a guitar neck thru transition

sibarraryan — Mon, 05 Dec 2022 08:20:24 GMT

Hi everyone!
I'm very new to Fusion360 and I was wondering if anybody could help me with the bass transition and the volute. Here it's a picture of what I'm trying to accomplished but so far I've created a Frankenstein 😞
thank you all!

Re: Modeling a guitar neck thru transition

TrippyLighting — Mon, 05 Dec 2022 11:13:09 GMT

Have you downloaded and looked at any of the models in this thread?

It is probably better to start a new thread and share the model there, not just images.

Export it as a .f3d and attach it to a post.

Re: Modeling a guitar neck thru transition

sibarraryan — Mon, 05 Dec 2022 15:37:30 GMT

You are totally right! I'll do that! thank you !