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				Dubwoofer's Tuba HT build
				Posted: Thu Jan 12, 2012 1:05 pm
				by Dubwoofer
				I'm building a 24" wide THT as per the original plans, the only deviation being instead of PL premium I am using Gorilla glue.  The material is 1/2" 9 ply cabinet grade baltic birch plywood.  The Tuba will be loaded with a RSS390HF-4 driver.
In construction I have not had to use any jigs or guideboards except a long piece I screw down to align pieces with the lines on the first side.
In the beginning:
 
Woofer burn-in (I don't think I want to do this with it installed):
 
First panels:
 
 
A little jump:
 
So far so good...
 
			
					
				Re: Dubwoofer's Tuba HT build
				Posted: Thu Jan 12, 2012 1:26 pm
				by spoogin
				Looking good,  but why not use the PL? just curious
			 
			
					
				Re: Dubwoofer's Tuba HT build
				Posted: Thu Jan 12, 2012 1:55 pm
				by Dubwoofer
				spoogin wrote:Looking good,  but why not use the PL? just curious
I already had a bunch of gorilla glue, so I didn't need to buy anything.
 
			
					
				Re: Dubwoofer's Tuba HT build
				Posted: Thu Jan 12, 2012 2:52 pm
				by Radian
				Looks real nice. 

   I hope it doesn't leak any..it'd be a shame.  

 
			
					
				Re: Dubwoofer's Tuba HT build
				Posted: Thu Jan 12, 2012 3:40 pm
				by Bill Fitzmaurice
				Dubwoofer wrote:
I already had a bunch of gorilla glue, so I didn't need to buy anything.
If Gorilla was a viable substitute it would say so in the plans. It has nowhere near the strength of PL. It may work OK, but if you have a leak where you can't reach it you're screwed.
 
			
					
				Re: Dubwoofer's Tuba HT build
				Posted: Thu Jan 12, 2012 4:08 pm
				by Dubwoofer
				Bill Fitzmaurice wrote:Dubwoofer wrote:
I already had a bunch of gorilla glue, so I didn't need to buy anything.
If Gorilla was a viable substitute it would say so in the plans. It has nowhere near the strength of PL. It may work OK, but if you have a leak where you can't reach it you're screwed.
 
I thought gorilla glue was urethane based
 
If guess we'll see what happens. So far I don't have any visible gaps and my pieces are lining up perfectly. I caulked the woofer chamber for good measure and I'll finish fastening the sides with a brad nailer.
 
			
					
				Re: Dubwoofer's Tuba HT build
				Posted: Thu Jan 12, 2012 5:17 pm
				by Bill Fitzmaurice
				Dubwoofer wrote:
I thought gorilla glue was urethane based
It is, but it's not in the same league as PL.
 
			
					
				Re: Dubwoofer's Tuba HT build
				Posted: Thu Jan 12, 2012 6:40 pm
				by Harley
				Bill Fitzmaurice wrote:Dubwoofer wrote:
I thought gorilla glue was urethane based
It is, but it's not in the same league as PL.
 
"Gorilla Glue" is a treacle-like glue and Bill is right, it's not the best to use in BFM cab construction.
Gorilla 
Grip Express on the other hand is a 100% expanding polyurethane and 
is the same leage as PL, but often gets called Gorilla Glue. PL has a colourant added as it's widely used in the construction industry in the USA, the colourant being a woody colour ( brownish ) 
http://www.holdfast.co.nz/pages/product ... psid=20075 
			
					
				Re: Dubwoofer's Tuba HT build
				Posted: Thu Jan 12, 2012 10:16 pm
				by Bill Fitzmaurice
				Harley wrote:
Gorilla Grip Express on the other hand is a 100% expanding polyurethane and is the same leage as PL
That seems to be exclusive to NZ.
 
			
					
				Re: Dubwoofer's Tuba HT build
				Posted: Fri Jan 13, 2012 5:05 am
				by Dubwoofer
				I'm hoping to finish the cabinet this weekend.  I have no school today so hopefully I can make some progress.

 
			
					
				Re: Dubwoofer's Tuba HT build
				Posted: Sun Jan 15, 2012 10:53 pm
				by Dubwoofer
				The end is nigh...
No complaints about the gorilla glue.

 
			
					
				Re: Dubwoofer's Tuba HT build
				Posted: Mon Jan 16, 2012 3:21 am
				by 88h88
				That looks like a mighty clean build due to the glue you've used. Be sure to double and triple check it for leaks before you put the side on.
			 
			
					
				Re: Dubwoofer's Tuba HT build
				Posted: Mon Jan 16, 2012 9:14 am
				by Harley
				88h88 wrote: Be sure to double and triple check it for leaks before you put the side on.
+1 
			
					
				Re: Dubwoofer's Tuba HT build
				Posted: Mon Jan 16, 2012 4:44 pm
				by DJPhatman
				88h88 wrote:That looks like a mighty clean build due to the glue you've used. Be sure to double and triple check it for leaks before you put the side on.
+2
I would even caulk the side edges before you close it up. You won't be able to reach them once the second side is on.
 
			
					
				Re: Dubwoofer's Tuba HT build
				Posted: Mon Jan 16, 2012 7:35 pm
				by Dubwoofer
				I'll caulk as much as I can before the side goes on.  So far things look good...
