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Main Forums => The Bass Zone => Topic started by: BTL on October 07, 2020, 06:59:52 PM

Title: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: BTL on October 07, 2020, 06:59:52 PM
I have been thinking about adding a six-string Bass VI to the 32" scale lineup for quite a while, and now that the fiver is in production, using that configuration as the platform makes a lot of sense.

I have also had inquiries about building an 8-string 32" scale bass.

It looks like the Kahler 2450-N6 (https://www.kahlerusa.com/guitar-tremolo-and-bridge/2450-n6-cx-6-string-bass-fixed-bridge) will do the job on the six-string, single-course front.

I'm guessing the ABM 3208 (https://www.allparts.com/products/bb-0338-abm-3208-8-string-bass-bridge?variant=18701542719545) will do the job on the 8-string, double-course front, but I can't find a dimensional drawing or specs for that model.

It almost seems like it's been discontinued on the ABM site, (https://abm-guitarpartsshop.com/ABM-GUITAR-PARTS/Bass-Bridges:::256_55.html) but is still in stock at Allparts so I'll give them a ring to see if they have a spec sheet.

Are there any others out there that I should look into?

(https://www.talkbass.com/attachments/2450n6cx-png.4010432/)

(https://www.talkbass.com/attachments/bb-0338-010-web_900x600-jpg.4010433/)
Title: Re: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: amptech on October 07, 2020, 10:11:47 PM
I used the Schaller STM roller bridge on two EB0 to EB6 conversions, one with a stoptail and one with a bigsby.
Works like a charm, but you will need to match the rollers to the string diameter. Done quickly with the roller mounted
on a drill, and a ratttail file. May not be what you look for, but it's an option.

(https://i.imgur.com/rc7aFMd.png)

Title: Re: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: gearHed289 on October 08, 2020, 07:07:33 AM
Schaller makes a great 8 saddle bridge. Good price on this one - https://reverb.com/item/5105120-schaller-471-8-8-string-bass-bridge (https://reverb.com/item/5105120-schaller-471-8-8-string-bass-bridge)
Title: Re: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: BTL on October 08, 2020, 07:19:31 AM
Nice!

It looks like the Schaller 471-8 is no longer being produced, but they are still available on the used market.

On the Schaller STM, I like the looks of that, but it's much too narrow for my application.

After thinking about this some more, having custom saddles fabricated for my 5-string bridge plate is definitely a possibility for the 6-string option.

With spacing at 2 7/8", traditional barrel saddles would be about 0.57" wide and I believe that's wide enough for them to be stable under bass strings.

The 8 string is another matter entirely...there's too much engineering involved to make a small batch feasible.
Title: Re: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: gearHed289 on October 08, 2020, 07:21:20 AM
Forgot to mention that I've got the big Kahler bridge on my Peavey TL-Six. Swapped out the nasty worn gold for chrome.  :mrgreen:

(https://scontent-atl3-1.xx.fbcdn.net/v/t1.0-9/94872161_10219017814014805_7874707956078477312_o.jpg?_nc_cat=106&_nc_sid=730e14&_nc_ohc=04u1kl5dDJwAX8BCNBp&_nc_ht=scontent-atl3-1.xx&oh=8b6726bb0033712a669b6d2a76b2bae4&oe=5FA60B16)
Title: Re: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: gearHed289 on October 08, 2020, 07:25:42 AM
Using your stock bridge plate for the 6 seems like a good idea. And yeah, making an 8 is more trouble than it's worth.

The current Hagstrom 8s have an interesting looking bridge. Not sure if they're proprietary, or maybe Gotoh or something?
Title: Re: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: BTL on October 08, 2020, 09:22:40 AM
Thanks, and agreed!

I'm guessing there is a source out there somewhere for the Hagstrom and Musicvox 12-string bridges.

On the five and six string versions of the neck, I'm tinkering with the 2+2 headstock shape in MS Paint to see what a 3+2 and 3+3 might look like.

I like it!

(http://www.lowecustomguitars.com/wp-content/gallery/Image-Hosting/Collage-090.jpg)
Title: Re: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: gearHed289 on October 09, 2020, 07:18:04 AM
I've been secretly building my dream Lowe bass in my head, and a 3+2 Ridler-style headstock is part of it.  ;D
Title: Re: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: BTL on October 09, 2020, 01:31:29 PM
I've been secretly building my dream Lowe bass in my head, and a 3+2 Ridler-style headstock is part of it.  ;D

That's such a nice compliment, thank you!
Title: Re: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: BTL on October 14, 2020, 07:16:57 PM
As a follow up and for posterity, a few potential sources for 8-string bridges are:

SUNG IL (used on LTD/Schecter) (https://reverb.com/shop/eyguitar-music?query=base%208)
ABM Allparts (https://www.allparts.com/products/bb-0338-abm-3208-8-string-bass-bridge?variant=18701542719545)
ETS Bass & Guitar Hardware (https://www.ets-hardware.com/)
Warwick (https://shop.warwick.de/en/parts-for-instruments/warwick-spare-parts/bass-bridges-tailpieces/19301/warwick-parts-2-piece-3d-bridge-tailpiece-8-string-brass?number=D0404737001564882623A3463-D0568399001429566095A1738599)
Alembic (http://www.alembic.com/family/contact.html)
Title: Re: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: gearHed289 on October 15, 2020, 07:17:57 AM
None of those links are opening for me.
Title: Re: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: BTL on October 15, 2020, 12:21:33 PM
Better now?
Title: Re: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: BTL on October 16, 2020, 04:55:33 AM
I just heard back from ETS and they offer both 8 and 12-string options.

I don't have any technical drawings, but the bridge seems to float in a manner similar to a jazz-box guitar.

(http://www.lowecustomguitars.com/wp-content/gallery/Image-Hosting/ETS-8-Bridge.jpg)

(http://www.lowecustomguitars.com/wp-content/gallery/Image-Hosting/ETS-12-Bridge.jpg)

(https://www.talkbass.com/attachments/12-4-jpg.4019756/)
Title: Re: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: gearHed289 on October 16, 2020, 07:26:17 AM
Better now?

Yes. Some good options there. The Warwick looks great.
Title: Re: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: BTL on October 19, 2020, 04:46:04 PM
So, an interesting update.

I have been thinking about the dearth of 8-string bridges on the market and what novel design options might be available to address the void.

I drew something up today that I think will work and sent it to a good friend who is a a patent attorney and also a bass player.

His initial impression is that the idea could qualify for a design patent.

Needless to say, I'm pretty excited about that.
Title: Re: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: morrow on October 19, 2020, 05:05:46 PM
Where's the like button ?
I hope it will work out , congratulations !
Title: Re: Bridge options: 6 single and 8 double course @ 2 7/8" to 3" spacing
Post by: BTL on October 20, 2020, 04:34:46 AM
Me, too.

Unfortunately, now comes the time where I have to keep quiet until we're ready to go to market.

Ugh!