Kick Bin Design Idea B&C 15ndl76 |
Post Reply | Page <1 91011 |
Author | |
BP1Fanatic
Registered User Joined: 02 August 2009 Location: Columbus, Ohio Status: Offline Points: 105 |
Post Options
Thanks(0)
|
Excellent work!
|
|
luthier
Registered User Joined: 21 July 2013 Location: UK - London Status: Offline Points: 271 |
Post Options
Thanks(0)
|
Update: On the plus side I have reduced the height of the cab by 36mm, making it a nice round 1m. Also I revised the driver baffle to allow for easier fitting of the back panel. The driver is now offset by about 5mm more, if memory serves me right. Finally I drew up some more internal bracing with the lessons learned from the prototype. What I really want to decide now is if I can use aluminium for the main brace in the horn mouth for the kick section? It's playing up near 350hz at the moment so I'm definitely concerned about it having any negative impact?
I should add I'm not trying to copy Void Acoustics with the crazy - and very pretty - angled braces but I would like to do something more interesting than just a bit of 18mm birch. |
|
Elliot Thompson
Old Croc Joined: 02 April 2004 Location: United States Status: Offline Points: 5176 |
Post Options
Thanks(0)
|
Interesting is usually coined as aesthetics from a design standpoint. You need to look at things from a logical standpoint. Aluminum resonates faster than wood and, can be quite a challenge once you achieve the metal's resonant frequency while offering a lot of sound pressure level. Best Regards,
Edited by Elliot Thompson - 25 March 2020 at 9:48pm |
|
Elliot Thompson
|
|
luthier
Registered User Joined: 21 July 2013 Location: UK - London Status: Offline Points: 271 |
Post Options
Thanks(0)
|
Guilty as charged, there certainly is an aesthetic element to metal bracing.
The resonance is indeed the concern with aluminum. In terms of it not being logical, it certainly would be a functional brace. But, perhaps just an unessecary step. I suppose I'm more intrested as a theoretical idea, to see if an aluminium brace could be applicable or even preferential in this scenario. I wonder if anyone has any experience calculating resonance in a brace in this scenario? I'd imagine it would be done in COMSOL/matlab or another multiphysics engine.
|
|
Elliot Thompson
Old Croc Joined: 02 April 2004 Location: United States Status: Offline Points: 5176 |
Post Options
Thanks(0)
|
Contractors that focus on a lot of metal instillation should be able to determine the resonance frequency of Aluminium based on the density of the material in addition to the length of the rod that is coming into play. When your quest is using materials that differ from the majority, you need to gather information from designers that use such materials on a day by day basis.
Nest Regards, |
|
Elliot Thompson
|
|
Post Reply | Page <1 91011 |
Tweet |
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |