Go Back   TalkBass Forums > Bass Guitar Forums > Bass Guitar Forums > Luthier's Corner
Register Rules/FAQ/CUP Members List Search Today's Posts Mark Forums Read

Luthier's Corner Discussion on instrument building, repair, and materials.


Supporting Membership
Thank You

Latest Supporting Member
Donate to Upgrade Today

Reply
 
Thread Tools Search this Thread
  #1  
Old 12-25-2012, 03:34 AM
Registered User
 
Join Date: Oct 2012
Location: Adelaide, SA
Some Grounding help

Hello everyone.

I am hoping someone can help me with an issue I am having.

I am working on the final building stages of my Orchid 6 string fretless (Inspired by Rick Toones beautiful Orchid basses), and I am having some issues with the grounding.

I haven't grounded it yet, so It is buzzy of course. I know that it is a case of grounding it to the bridge. Just one problem though; the bridge is too far away from the electronics cavity. The cavity is located in the upper horn.

My question is, how, and where should I ground my bass to?

The bass is active, and the ground wire is connected to the input jack earth spot.

Hopeful some of the electronics nuts here can help me.

Cheers.
  #2  
Old 12-25-2012, 01:34 PM
Registered User

Professional Luthier
 
Join Date: Feb 2011
Location: Burbank, CA
That's not really an electronics problem, it's a mechanical problem! You need to figure out a way to get a wire from the bridge to either the control cavity, or to the output jack. Whichever is closer or easier. The usual way is to carefully drill a hole diagonally through the body, using a long small drill bit. A 3/16" x 12" bit is great for those wiring holes.

Without seeing your bass, you probably want to start the bit in the side wall of the output jack cavity and aim it so that it breaks through the surface of the body right under the center of the bridge.
  #3  
Old 12-25-2012, 04:06 PM
Registered User
 
Join Date: Oct 2012
Location: South Florida
Drill from the bridge to the pickup cavity. There is a hole connecting the control cavity to the pickup cavity, right? So you could easily run a longer grounding wire from the bridge through the pickup cavity into the control cavity. I think. That seems like the simplest solution, without seeing your bass.
  #4  
Old 12-25-2012, 06:37 PM
Registered User
 
Join Date: Oct 2012
Location: Adelaide, SA
I was afraid you guys would say that.

Time to find a million miles of wire then.
  #5  
Old 12-25-2012, 07:32 PM
uOpt's Avatar
Registered User
 
Join Date: Jul 2008
Location: Boston, MA, USA
Supporting Member
An alternative to grounding the strings is full shielding of the electronics cavity (plus using all shielded wire outside the cavity of course).

The only reason why some moron had the idea to ground the strings is that they were too cheap to properly shield the guitar. So they abuse your belly as a shield by grounding you via the strings. IMHO this is life-threatening nonsense anyway but it is what people are used to.

Anyway, once you shield inside the guitar you don't need to play outside shield anymore and the grounded bridge is not necessary.
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Visit TalkBass on Facebook   Download our iOS app   Download our Android app

All times are GMT -6. The time now is 11:18 PM.




2012 Talk Music Group Inc. All rights reserved.
Play guitar too? Visit TalkGuitar.com
Powered by vBulletin® Version 3.6.12
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.