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Dec 4, 2023 - 10:20:32 AM
17 posts since 3/24/2023

What I want to know is what is the distance between the hooks that hold the head on? hook to hook, center to center, measurements. Is there a site that I can look that up?

I'm trying to figure out how to work a 3d printer that my work purchased and to test things I want to print some things for my banjo. I found a tuner mount that snaps onto the hooks but the model I downloaded looks like it was for a banjo with more hooks or narrow spacing, it's about an inch and a half center to center.

I have what looks to be an AC-1 knockoff that I bought at a local music store. I like it, it plays fine but I wanted to prints some things and cheap plastic prints won't make it look worse... I printed a basic arm rest for it, and I was thinking a tuner holder on the hooks would make it look better than the tuner on the head.

It's not super important. I can try to measure it at home but with the curve of the rim I thought it might be more complicated than grabbing a ruler. Probably overthinking it.

Dec 4, 2023 - 10:27:06 AM
Players Union Member

Emiel

Austria

10401 posts since 1/22/2003

I, too, replaced some hooks on my 1926 TB-3 (grooved tension-hoop, ball-bearing tonering) and ordered them from Elderly. They worked fine, but that was years ago:

elderly.com/products/banjo-flat-hook-nut

Dec 4, 2023 - 11:00:39 AM

17 posts since 3/24/2023

I'm not really looking to replace the hooks, just looking for a measurement of the space between hooks.

Dec 4, 2023 - 11:43:58 AM
Players Union Member

Emiel

Austria

10401 posts since 1/22/2003

quote:
Originally posted by drytoast

I'm not really looking to replace the hooks, just looking for a measurement of the space between hooks.


Sorry, I posted this in the wrong thread…

Dec 4, 2023 - 11:51:48 AM
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17 posts since 3/24/2023

That makes more sense now. No worries.

Dec 4, 2023 - 12:16:46 PM

5529 posts since 5/29/2011

A tape measure or a ruler would probably get you close enough.
The inch and a half spacing is Gibson spec. Sixteen brackets would be closer to two inches.

Dec 4, 2023 - 12:22:16 PM

KCJones

USA

2863 posts since 8/30/2012

Seems simple. 16 brackets spread evenly over the circumference of the rim. Take the circumference divided by 16 and that would be the distance between each, right? Maybe I'm missing something.

Dec 4, 2023 - 12:35:56 PM
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Players Union Member

Emiel

Austria

10401 posts since 1/22/2003

quote:
Originally posted by KCJones

Seems simple. 16 brackets spread evenly over the circumference of the rim. 


No, those on both sides of the neck are usually farther apart than the rest of them…

Dec 4, 2023 - 12:41:34 PM
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KCJones

USA

2863 posts since 8/30/2012

quote:
Originally posted by Emiel
quote:
Originally posted by KCJones

Seems simple. 16 brackets spread evenly over the circumference of the rim. 


No, those on both sides of the neck are usually farther apart than the rest of them…


So just subtract that distance from the circumference. It's still just 16 brackets spread evenly across a given distance. 

Dec 4, 2023 - 12:50:07 PM
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14828 posts since 6/2/2008
Online Now

If what you're going to make is going to attach to just two hooks, then measure the center-to-center distance of any two adjacent hooks.  The distances between hooks at the neck and tailpiece are likely to be different than the distances between any of the 8 hooks on either side of the pot.

And what's an AC-1 knock-off? Is there such a thing?

Dec 4, 2023 - 1:23:34 PM

17 posts since 3/24/2023

I bought it before I knew about the AC-1. It's my first banjo and the store set it up and made sure it was all good. That was about 7 or 8 years ago. But I forget the "brand" right now but I do know the truss rod cover says "hoedown" on it... But it's composite and pretty comparable, visually, to an ac-1. Honestly I wouldn't be surprised if the neck isn't even wood. There is a resonator that can screw onto the back as well.

Dec 4, 2023 - 1:25:05 PM

17 posts since 3/24/2023

I'll use a tape measure and dust off my math skills. I was hoping that there was a "standard" and it was easily available online.

Dec 4, 2023 - 2:11:49 PM

17 posts since 3/24/2023

Ha, actually it's this banjo. Except black, not red. reverb.com/item/57988187-morga...own-banjo

Dec 4, 2023 - 2:21:14 PM

Owen

Canada

14597 posts since 6/5/2011

I wasn't enamored with the Snark mount.  I realize it doesn't answer your question, but if I was going to make/print/??? a mount, I'd consider something that can be moved between banjos with various hook spacings. 


 

Edited by - Owen on 12/04/2023 14:22:11

Dec 4, 2023 - 2:32:14 PM
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61698 posts since 12/14/2005

Your original post says you have a banjo.

If you have a banjo, with 16 hooks, measure the space.

If you are looking to install 16 hooks on an existing rim, put a piece of painter's masking tape along the rim, from the edge of the neck, to the edge of the tailpiece.

Allow whatever is proper for the first and last hooks, and divide the remaining tape by SEVEN, which will give you 8 spots.

Anybody got a better idea, feel free to correct my Best Guesstimate.

Dec 4, 2023 - 2:41:57 PM

Owen

Canada

14597 posts since 6/5/2011

It's no better Mike, but my guestimate is that Mr. Toast and the banjo were in two different places when he posted????  wink

Dec 4, 2023 - 2:53:17 PM

17 posts since 3/24/2023

This is true. I was separated from my banjo...

but that pic with the snark tuner mount looks interesting. I may try to play around with that idea and print something that can work. Thanks!

Edited by - drytoast on 12/04/2023 14:53:58

Dec 4, 2023 - 4:57:05 PM
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mbanza

USA

2619 posts since 9/16/2007

A follow-on to Mike Gregory's suggestion, but without the math. The sloped line is the distance from first to last shoe, the other lines are parallel and equidistant; you'll need more lines.


Dec 4, 2023 - 7:06:25 PM
Players Union Member

Helix

USA

17443 posts since 8/30/2006

1. Tape two Teflon baking sheets together. Use magic marker and get a circumference line going with centerline for the head and tail.
34.55 in. For 11” rim

THEN the distances can be calculated. The head hooks are a little further apart and the tail are closer

Circumference is more accurate
Haven’t seen a chart anywhere

Dec 5, 2023 - 12:16:43 PM

14828 posts since 6/2/2008
Online Now

quote:
Originally posted by drytoast

I'll use a tape measure and dust off my math skills. I was hoping that there was a "standard" and it was easily available online.


The one thing standard about banjos is there are few standards. I would be surprised if there were standard hook spacing for 16- and 18-hook banjos. 24 hooks are close to standard because of the prevalence of notched hoops designed to pair with Mastertone-style flanges, but even then perfection is not guaranteed.

Additional method:  Lay masking tape across as many hooks as possible. Mark hook centers on the tape. Measure distances between multiple adjacent marks. Use the most common distance you come up with. Or an average. You'll be close enough.

Dec 9, 2023 - 3:20:10 AM
Players Union Member

Helix

USA

17443 posts since 8/30/2006

All the necks are 2-7/8" wide, the tailpieces are not, that's why you calculate the spacing for one half of the circle and then duplicate it for the other side. It's easy, I've done it for 16's and 18's (which I prefer.)

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