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May 14, 2021 - 1:18:48 AM
72 posts since 3/24/2020

I'm working on a travel style tenor on a 10" pot. This banjo will have a scale of 22"at the 1st string to the standard 23" at the 4th, so it will be fan fretted. This banjo will also feature a headless neck & it will have a bamboo stretcher band with stainless bolts through to an Ashbourne style flange with the tuners incorporated into the stretcher band. To reduce width or to put it another way to reduce the spread of the strings I'm going to stagger or zigzag the positioning of the tuners on a widened section of the stretcher band. This means the break angel at the bridge will be steep, shallow, steep & shallow. So which end should I start off with the tuners closest to the bridge for the best overall break angle sound effect?

I'll try to put some pics up as it progresses. Martyjoe.

May 14, 2021 - 2:26:25 AM

72 posts since 3/24/2020

Here are some of the parts laid out for visual reference. The washers represent the tuner placement. It’s going to get Steinburger gearless tuners.


May 14, 2021 - 5:26:34 AM

beegee

USA

22371 posts since 7/6/2005

On a 10" pot, I doubt you'll notice a minor difference in break angle between strings.

May 14, 2021 - 6:16:07 AM
likes this

8547 posts since 8/28/2013

Break angle differences could be minimized by using a flat bearing surface on top of the stretcher band with a straight cut edge for the strings to cross on their ways to the tuners. The edge would be parallel to the bridge.

May 14, 2021 - 9:58:27 AM

Alex Z

USA

4278 posts since 12/7/2006

quote:
Originally posted by martyjoe

Here are some of the parts laid out for visual reference. The washers represent the tuner placement. It’s going to get Steinburger gearless tuners.


Are you saying that the tuners will stick up higher than the tension hoop and therefore the strings won't hit the tension hoop?  Is this correct?

May 14, 2021 - 12:41:51 PM

72 posts since 3/24/2020

Alex Z The tuners are actually coming through the tension hoop. The tension hoop consists of two 5mm by half inch layers of bamboo, which is VERY strong & very flexible. The segment where the tuners are mounted is 3 layers thick because the tuners need a minimum of 1/2" to tighten snug. Steinburger tuners pull the string down into the tuner core by a threaded centre shaft so they come out of centre of a 1/16" rim from the tuner. They are compact & all turn in the same direction so are perfect for this application. Anyhow l was wondering which orientation would be better to place them in, as Beegee says the difference will be so slight that it won't matter.


May 14, 2021 - 1:28:16 PM

Alex Z

USA

4278 posts since 12/7/2006

I see now from the two pictures. 
 

If I'm visualizing this correctly, the string will touch the bridge and then go directly to the center of the tuner without touching the edge of the head. 

May 15, 2021 - 4:09:24 AM

72 posts since 3/24/2020

Jobs done, only the rest to do.


 

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