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The Ultimate AutoTuba

Posted: Tue Jan 27, 2015 7:31 pm
by cgsharp8
Hello All!!
I've been working on this AT with my dad for a couple of weeks now. We have completed constructing it, all thats left is to stain it.
This will all be one long line of images just so you know. Also, since the attachment limit for an individual post is 5, this will be separated into several posts/comments within this thread.
Hope you enjoy!
5X5 piece of Baltic Birch
5X5 piece of Baltic Birch
photo 1.JPG (34.77 KiB) Viewed 3301 times
Added initial lines for side walls
Added initial lines for side walls
photo 2.JPG (30.4 KiB) Viewed 3301 times
Most pieces cut
Most pieces cut
photo 3.JPG (36.49 KiB) Viewed 3301 times
all the pieces cut
all the pieces cut
photo 4.JPG (37.37 KiB) Viewed 3301 times
Let it begin
Let it begin
photo 5.JPG (31.88 KiB) Viewed 3301 times

Re: The Ultimate AutoTuba

Posted: Tue Jan 27, 2015 7:42 pm
by cgsharp8
panel 1
panel 1
photo 6.JPG (38.66 KiB) Viewed 3299 times
panel 2
panel 2
photo 7.JPG (40.71 KiB) Viewed 3299 times
panel 3
panel 3
photo 8.JPG (41.06 KiB) Viewed 3299 times
panel 4
panel 4
photo 9.JPG (41.37 KiB) Viewed 3299 times
panel 4 different shot
panel 4 different shot
photo 10.JPG (37.63 KiB) Viewed 3299 times

Re: The Ultimate AutoTuba

Posted: Tue Jan 27, 2015 7:52 pm
by cgsharp8
added driver support ring blocks
added driver support ring blocks
photo 11.JPG (31.86 KiB) Viewed 3297 times
panel 5 with brace
panel 5 with brace
photo 12.JPG (39.65 KiB) Viewed 3297 times
panel 7 with brace<br />panel 6 brace only
panel 7 with brace
panel 6 brace only
photo 13.JPG (44.11 KiB) Viewed 3297 times
panel 8 with brace
panel 8 with brace
photo 14.JPG (41.04 KiB) Viewed 3297 times
top down shot
top down shot
photo 15.JPG (35.31 KiB) Viewed 3297 times

Re: The Ultimate AutoTuba

Posted: Tue Jan 27, 2015 7:58 pm
by cgsharp8
back shot
back shot
photo 16.JPG (33.5 KiB) Viewed 3296 times
panel 6 added with brace
panel 6 added with brace
photo 17.JPG (43 KiB) Viewed 3296 times
top down shot
top down shot
photo 18.JPG (40.27 KiB) Viewed 3296 times
panel 9 with brace
panel 9 with brace
photo 19.JPG (44.69 KiB) Viewed 3296 times
side shot with with final brace added
side shot with with final brace added
photo 20.JPG (32.45 KiB) Viewed 3296 times

Re: The Ultimate AutoTuba

Posted: Tue Jan 27, 2015 8:02 pm
by cgsharp8
my favorite picture
my favorite picture
photo 21.JPG (31.39 KiB) Viewed 3296 times
driver added panel 6 trimmed
driver added panel 6 trimmed
photo 22.JPG (38.21 KiB) Viewed 3296 times
LET THE SANDING BEGIN<br />(we sanded a lot btw)
LET THE SANDING BEGIN
(we sanded a lot btw)
photo 23.JPG (39.52 KiB) Viewed 3296 times
sanded and looking good
sanded and looking good
photo 24.JPG (31.97 KiB) Viewed 3296 times
adding mounting bracket for side access panel
adding mounting bracket for side access panel
photo 25.JPG (42.05 KiB) Viewed 3296 times

Re: The Ultimate AutoTuba

Posted: Tue Jan 27, 2015 8:07 pm
by cgsharp8
hole cut and terminal plate added
hole cut and terminal plate added
photo 26.JPG (28.37 KiB) Viewed 3295 times
driver all wired up
driver all wired up
photo 27.JPG (35.92 KiB) Viewed 3295 times
fully operational
fully operational
photo 28.JPG (26.97 KiB) Viewed 3295 times
I have yet to glue in the final brace and stain the whole thing.

Final photos will be added in the next couple of days!


P.S. It sounds AMAZING!! Thank you to Bill for being such a genius.

Re: The Ultimate AutoTuba

Posted: Wed Jan 28, 2015 10:59 am
by Gsharp9
Looks good Colt. BTW, Thanks to Bruce Weldy for some technical help. Way cool to find kind of personal help from people on this forum. Much appreciated.

Tested it in the house last night. Even with a setup that was not exactly right, this thing truly sounds amazing. I'm finding it hard to imagine the sonic impact inside a volvo 240 wagon. Colt, your getting' ear plugs for your birthday. :roll:

G

Re: The Ultimate AutoTuba

Posted: Wed Jan 28, 2015 3:24 pm
by shawn_g
Looks good! 8)

Re: The Ultimate AutoTuba

Posted: Thu Jan 29, 2015 12:42 am
by Tom Smit
Gsharp9 wrote:Looks good Colt. BTW, Thanks to Bruce Weldy for some technical help. Way cool to find kind of personal help from people on this forum. Much appreciated.

Tested it in the house last night. Even with a setup that was not exactly right, this thing truly sounds amazing. I'm finding it hard to imagine the sonic impact inside a volvo 240 wagon. Colt, your getting' ear plugs for your birthday. :roll:

G
Ear plugs won't help with the 'sub' frequencies. I had a 740 with the AT, backed into the shop at work, and was almost overwhelmed by the low freqs when I was wearing ear muffs (_27db).

Re: The Ultimate AutoTuba

Posted: Sat Jan 31, 2015 12:57 am
by caddylackn
G[/quote]
Ear plugs won't help with the 'sub' frequencies. I had a 740 with the AT, backed into the shop at work, and was almost overwhelmed by the low freqs when I was wearing ear muffs (_27db).[/quote]

The low frequencies don't have to go through your ear canal to get to your ear drum, since they can travel through your skull and brain and still get to the ear drum :lol: . Not much can stop low frequencies from traveling where they want to go.

Re: The Ultimate AutoTuba

Posted: Sat Jan 31, 2015 1:23 am
by Gsharp9
And we want them to travel anywhere they want to. So good !!!

G

Re: The Ultimate AutoTuba

Posted: Sat Jan 31, 2015 8:53 am
by Bill Fitzmaurice
caddylackn wrote: The low frequencies don't have to go through your ear canal to get to your ear drum, since they can travel through your skull and brain and still get to the ear drum
+1. That's why low frequencies on an equal loudness chart rise so high. The low frequency waves hit both sides of the eardrum, resulting in cancellation. The lower you go the more than cancellation. It's one reason why we really don't hear below 15Hz or so. What is down that low we feel. Even elephants, who communicate over miles with ultra low frequencies that they can 'speak', don't actually hear what's being said. They feel it through their feet, with the low frequency waves being conducted through the ground.

Re: The Ultimate AutoTuba

Posted: Sat Jan 31, 2015 10:50 am
by Gsharp9
Bill Fitzmaurice wrote: Even elephants, who communicate over miles with ultra low frequencies that they can 'speak', don't actually hear what's being said. They feel it through their feet, with the low frequency waves being conducted through the ground.
[/quote]

Well there is something I never knew I'd learn on here. :noob:

Amazing. Thank you Yoda

G

Re: The Ultimate AutoTuba

Posted: Sat Feb 07, 2015 9:33 pm
by cgsharp8
Here are a few more pics to show how we have finished the AT. Danish Oil dark walnut. Satin lacquer finish with HVLP gun. Then waxed and buffed. Hope you enjoy!
IMG_4789.JPG
IMG_4789.JPG (37.68 KiB) Viewed 2981 times
IMG_4797.JPG
IMG_4797.JPG (35.53 KiB) Viewed 2981 times
IMG_4788.JPG
IMG_4788.JPG (37 KiB) Viewed 2981 times

Re: The Ultimate AutoTuba

Posted: Sat Feb 07, 2015 9:36 pm
by Gsharp9
NICE! not bad for a first build by a teenager.


G