Hello, I'm Ben, I'm new here (from Germany) :)
I am employed at a facility that collects and resells all sort of household goods (similar to salvation army stores, I guess). For the 30yo anniversary we are thinking of assembling a band that play music on DIY instruments made of (mostly) garbage - including a CBG with Piezo Pickups. I salvaged two acoustic guitars whose body is broken and thought about reusing the necks. After having a closer look onto the CBG instructions that I found on the net, I realised that the neck is not just being attached to the box but "stuck" through (a cut-out) the box like here:
http://cdn.instructables.com/FMR/S1OC/GOZIQJS7/FMRS1OCGOZIQJS7.LARG...
This leaves me with the question how to continue: Can I continue (attach the spare neck to the box) and attach the piezo to the now "blank" underside of the Box? Or do I have to attach some wood-slath undeneath the box (and then add the piezo to the slath? Or should I forget the idea with the spare neck?
cheers
Tags:
Many thanks for your explanations! My english is not too bad but I'm having difficulties
with the tech-lingo parts. Don't wonder if I ask you to repeat or clarify certain parts that you find mundane.
How many frets?
19 each
At what fret did the necks connect to the now-broken bodies?
13
Do you still have the broken bodies?
Yes, I included some pics in my profile (+ the boxes that I got hold o)f. At least one of the guitars was between 70-75 years old and was made by a small guitar maker. Sadly, both the saddles and bridges are missing.
The boxes are round on the left and right sides which may (or may not?) pose problems.
you need the location of the bridge / saddle on that body, and the distance
from the bridge to the nut...
From the blank space that is left visible on the bodies to the nut is
64,6-67cm (I measured to both the left and the right end of the blank
space) and 62,5-65,9 cm for the other.
measuring from the nut to the 12th fret, and multiplying by 2,
30,9*2=61,8 and 30*2=60. I'm slightly confused. Which of these measures do I have to use for the location of the saddle/bridge on the box?
Typically acoustic necks are glued using a dovetail joint into a block of wood set into the body of the guitar...
The lone neck was simply glued to the top and side of the guitar IIRC. The option with the screws sounds appealing. Would you recommend any particular type of screws?
Once again, thanks for the advice. I'm glad to get advice from the experts.
If you guys have anything to suggest/complain etc., please do!
One more thing: May I ask additional questions in this topic, related to my project here or do I have to open a new one (I haven't seen any rules or moderators so far?).
cheers
I used auto upholstery screws. They're chromed, come with washers built in and in several lengths. Got them at a local hardware store
What "Oily" said
your junk guitars' bodies are likely much bigger than your cigar boxes, so you will have to add an extension to the box so that you can keep the same nut-to-bridge length and still have the bridge on the cigar box.
All I can say is, "ignorance is bliss". I wanted to make a 6 string resonator CBG And went ahead without asking for opinions but chose from several options before starting. 1st of all, I'm no woodworker, so using and existing neck was a given for me. The one I settled on was an old Peavy bolt on. I added a length of hard wood to it to go to the far side of the box. In order to get depth for the res cone, I used spacers after figuring out the finger board (and neck) depth. By doing a spacer on the attached board I had clearance a-plenty, a spacer would also give you room for your piezo and allow the top to vibrate freely and possibly give you a richer tone. BTW, the brass parts were from Old Lowe.
Thanx Wayfinder, it was pretty much "cut & paste"...looks like more work than it was, but it play's sweet!
Thanks, "Oily" and the others.
This clears a few things up.
However, I noticed that the correct (scale) length is not feasible as the box is too short (or the neck too long).
Now I see 2 options (?) to solve this problem:
#1 Extending/attaching the neck with another slat, thus creating a neck-on-top CBG as the end of the fretboard extends over the top of the CB. Not my favourite as it would look ugly.
#2 Adding (How? Gluing? Screwing?) a block of wood that extends or "closes" the gap of the heel 'til the end of the fretboard (and possibly goes into the box) which attaches the fretboard directly to the left end of the box?
Or am I just seeing CBG-Demons that want to distract me?
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