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[Chris Parsons]

here's a picture showing the mistake I made.  I don't think I explained it very well.  

the section in bold is where the flare ended up. aye yei yei...


-Chris Parsons

[Brad Litz]

It's OK
Don't worry about it as long as there are no air leaks.

[Chris Parsons]

Thanks Brad.  

I just picked up some west systems epoxy.  I plan on going over all of the joints in the modules with it (and the fiberglass cloth) just to make sure there are no leaks...ever.  

Does this modification make any change to the response?  Should I build the other module with the same mistake?



-Chris Parsons

[Al Limberg]

Hi Chris,
If you don't already have the parts cut, I'd go ahead and try to do them the way they are drawn.  I don't think it'll make any audible difference in the cabs but it will give you practice for your next pair.
As far as the West system goes - good plan, but I might suggest rahter than trying to fit the fibreglass cloth into the confined spaces of the module, pick up a can of the 'filleting powder'.  First mix your epoxy resin base and hardener in the proper ratio then slowly add the powder to thicken the mixture till it looks like and has about the consistency as a 'brownie' mix.  then you can use a trowel of some sort to apply it to the seams and joints.  It will fill any gaps and strengthen the whole module.

Al

[Chris Parsons]

Thanks Al,

I'm going to remove the flares that I messed up.  I guess I might need to use a sawsall to get them off.  oh well... it will be worth it.  I hate doing things any other way that what was planned.  

-Chris Parsons

[Chris Parsons]

So i've fixed the flare problems.

Aluminum time:  If I can find it, can I just use aluminum for the enitre access place, not just the round discs in the middle?
I've got some metal connections here in santa cruz so I might be able to do that.  Would there be any loss in rigidness?

thanks!

-Chris Parsons

[Chris Parsons]

bump...about the aluminum covers?

thanks!

-Chris Parsons

[Alan Searchwell]

Chris,

I wouldn't worry about loss of rigidity. Powersound of Belgium has used the largest aluminum access covers I have seen:

http://www.powersound.be/lab/01-08-03/lab_03.JPG

Tako Tomas seems to have done away with the wooden access covers and gone for one-piece circular aluminum covers:

http://www.tandartsgroep.be/shootout/ttomas/images/4b.JPG

as has N.(Nick?) Webber

http://www.geocities.com/bonitone/rothberg-4.jpg

All these pictures are from posts in the archive, that is, they are relatively old. All of these labs appear to be very well built and the finished ones are nicely finished (absolutely fabulous in the case of Tako Tomas). I assume that none of them were built just for the fun of it and that they are all being used regularly. That being said, none of these guys has posted anything about problems with access covers so, I assume they are all doing fine.

Hope that helps.

[Chris Parsons]

Thanks!  So now the question is, why dosen't everyone just use aluminum for the entire thing?  

-Chris  

[Chris Parsons]

I'm not sure as to how I know what to cut out for the driver access.  Should I just trace from the inside of the module or is there a better way to do it.  I've noticed that the acces covers are smaller than the inside of the modules.  Why is this?

Thanks!

-Chris Parsons