On the right is the guitar body which holds up the instrument at the correct angle without the use of a footstool. How do you think the increased size and asymmetrical nature of the instrument affect the sound? How would the bracing work on something like this? Any other considerations?
Tags:
Comment
Hey Order 99. The soundboard is flat 1/8th inch panneling which is laminated. No bass bar planned. Sound post yes on the gamba. I plan to use an "I" brace on my gamba but the old department store bracing system ala cheap guitars on my guitar build. It calls for a bridge plate. I like your schemes too. Very sensible.
So....what type of wood is your instrument soundboard made of (Mahogany,spruce, basswood, laminate? How thick will the material be? Will the soundboard be flat or arched? Do you want a bass bar to dampen the base and equalize the treble like a violin? Will you use a sound post to support the top and add vibration in the back(again, like Violin)? All of these questions will modify the pattern...
Even in thin plywood boxes I have started to add an inverted 'T' micro-brace of 1/4 inch tapering to 1/16 inch-seems to make the sound a little richer somehow.
If i'm lucky enough to find an actual thin wooden box (usually cedar) i'll use an 'A' brace of 1/2 inch tapering to 1/8 inch and touching the sides, and glue a 1/16 inch veneer where I want my sound holes (especially the 'f' and 's' holes.
Nearly all my builds use a tailpiece-if perchance I use a fixed bridge I will add a bridge plate.
Overkill? maybe-but I lost a 'quality' (not worth the $80.00) store-bought uke lately due to both a dearth of proper bracing and a bridge plate of less than 1/4 inch. At least it has a great neck tuners and nut, so expect to see a San Dona Cigar Uke later on...braced.
Forgot to say that you would ideally do this across a range of audio frequencies and the sound bars would then be placed to support the pattern/blend of patterns you choose.
...correction to first line...'nodal'...apologies
Ideally you need to establish the soundboard's noadal resonance profile. This would normally be done using special electronic equipment. However you might be able to get a good idea by treating it as a 'Chladni Plate' before fitting, maybe by fixing one edge in a vice and using a violin bow to excite it. A thin layer of 'silver?' sand on it would then show the nodal pattern.
These pages might be useful? https://www.instructables.com/id/Easy-Chladni-Plate/
Once you have established the nodal pattern then you can arrange the sound bars accordingly...I think I am right in saying these should be the areas that are NOT nodes? I am sure somebody on here will be able to correct me.
This looks an interesting musical instrument technology project!
Started by J. D. Woods in Performances, How to Play, Lessons, Concerts. Last reply by J. D. Woods 5 hours ago. 2 Replies 0 Likes
Started by Southern Ray in Other stuff - off topic, fun stuff, whatever. Last reply by A.D.EKER yesterday. 4 Replies 0 Likes
Started by Rich Butters in Building Secrets, Tips, Advice, Discussion. Last reply by Crazed Fandango on Tuesday. 4 Replies 0 Likes
Started by J. D. Woods in Performances, How to Play, Lessons, Concerts. Last reply by J. D. Woods on Saturday. 7 Replies 1 Like
Started by Nomad Jack in Performances, How to Play, Lessons, Concerts. Last reply by J. D. Woods Apr 17. 7 Replies 2 Likes
Started by Moritz Voegeli in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Apr 14. 6 Replies 2 Likes
Started by Timothy Hunter in Other stuff - off topic, fun stuff, whatever. Last reply by Timothy Hunter Apr 10. 14 Replies 3 Likes
Started by Tom T in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Apr 9. 9 Replies 0 Likes
Started by Southern Ray in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Apr 4. 7 Replies 1 Like
Started by Timothy Hunter in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Mar 27. 1 Reply 2 Likes
Started by Taffy Evans in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Mar 10. 1 Reply 3 Likes
Started by Cigar Box Nation in Feature Articles. Last reply by BrianQ. Mar 9. 4 Replies 3 Likes
Started by Ghostbuttons in Building Secrets, Tips, Advice, Discussion. Last reply by Timothy Hunter Mar 9. 5 Replies 1 Like
Started by Justin Stanchfield in Building Secrets, Tips, Advice, Discussion. Last reply by Taffy Evans Mar 8. 6 Replies 0 Likes
Started by Ken I in Building Secrets, Tips, Advice, Discussion. Last reply by Brian partington Mar 8. 8 Replies 0 Likes
Started by Southern Ray in Cool gear discussion - that's not cigar box related. Last reply by Southern Ray Mar 6. 5 Replies 0 Likes
Started by Taffy Evans in Other stuff - off topic, fun stuff, whatever. Last reply by Taffy Evans Mar 5. 4 Replies 2 Likes
Started by Justin Stanchfield in Building Secrets, Tips, Advice, Discussion. Last reply by Carl Floyd Mar 1. 15 Replies 0 Likes
Started by Joe in Performances, How to Play, Lessons, Concerts. Last reply by Carl Floyd Feb 29. 13 Replies 0 Likes
Started by Chance in Building Secrets, Tips, Advice, Discussion. Last reply by Southern Ray Feb 22. 12 Replies 1 Like
Posted by Vlad on March 31, 2024 at 11:48pm 0 Comments 1 Like
Posted by Vlad on March 6, 2024 at 2:32am 5 Comments 2 Likes
Posted by billy jones bluez on February 28, 2024 at 2:09pm 0 Comments 0 Likes
Posted by billy jones bluez on February 17, 2024 at 11:00pm 0 Comments 0 Likes
Posted by Vlad on February 11, 2024 at 1:06am 1 Comment 1 Like
May 11, 2024 from 11am to 8pm – Speakeasy Grill
0 Comments 0 LikesMay 30, 2024 from 6:30pm to 10pm – The Casual Pint of Huntsville
0 Comments 0 Likes© 2024 Created by Ben "C. B. Gitty" Baker. Powered by
Cigar Box Nation is presented by C. B. Gitty Crafter Supply, your one-stop-shop for Cigar Box Guitar parts and accessories!
You need to be a member of Cigar Box Nation to add comments!
Join Cigar Box Nation