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 Post subject: Laminate?
PostPosted: Tue Mar 13, 2007 10:36 am 
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Sheep

Joined: Mon Mar 12, 2007 7:45 pm
Posts: 21
Hi,

Just wondering how you all get such perfect wood finishes on your speakers - no sign of joins or anything. Is it best to make the box out of MDF or the like and then put laminate on it?


L


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 Post subject:
PostPosted: Tue Mar 13, 2007 9:01 pm 
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Sheep
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Joined: Thu Jan 25, 2007 7:19 pm
Posts: 16
Location: London
Laminating or veneering the box is probably the easiest way to get a good finish. You can also do a good job with car body filler across all the joints and then sand / paint although it takes longer and a bit of practice to get right. Oh, a flush trim router bit is also very handy :D

MDF joints can be prone to expansion due to which can crack and spoil a painted finish but if you treat the box with something like wood hardener or even paint on fibreglass resin, if makes expansion / cracking less likely to happen IME.

I guess from your other thread the boxes will live in the car so will be subjected to greater changes in temperature and humidity than speakers in the home - have you thought about covering the boxes in fabric / bassbox carpet or similar?

What bike to you ride BTW :)

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PostPosted: Tue Mar 13, 2007 9:09 pm 
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Sheep

Joined: Mon Mar 12, 2007 7:45 pm
Posts: 21
These are going in the house. :)
I suppose if one used prelaminated board, there'd be lots of nasty edges :(


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PostPosted: Tue Mar 13, 2007 9:19 pm 
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Sheep
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Joined: Thu Jan 25, 2007 7:19 pm
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Location: London
Ah - OK - my mistake - I just skimmed the other thread. :)

You could use veneered MDF if you routed a 45 degree angle on all the inside edges so the outside veneered edges met up.

Looking at this for instance http://www.cfanderson.co.uk/module/page-77/type_id-186 there seems to be a good choice of finishes available.

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PostPosted: Tue Mar 13, 2007 9:32 pm 
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Sheep

Joined: Mon Mar 12, 2007 7:45 pm
Posts: 21
Nice one! Routing seems to be the way forward, dowelling and gorilla glue :D

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 Post subject: Locking miter router bit
PostPosted: Tue Mar 13, 2007 9:33 pm 
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Sheep
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Joined: Sat Feb 11, 2006 12:41 am
Posts: 22
Location: South Carolina
If you have a router table or shaper, this style of jointing is great. The angles are made at a perfect 45 degrees(within the tolerance of the bit and your table). I used to use splines to join mitered corners but this eliminates the need. You also get a little more glue area.

I almost always put masking tape over the cutting line on veneered plywoods to prevent tear out when I'm cutting or routing.

Bosch and Freud make versions of this bit.

http://routerbitworld.com/category_s/296.htm

Caution: I'd never use this bit freehand - only with a router table or shaper. Way too much torque and kick back if you're not careful.

Mike


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PostPosted: Tue Mar 13, 2007 11:08 pm 
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Sheep

Joined: Mon Mar 12, 2007 7:45 pm
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the guy taking care of my milling floors and makes kitchens for a living :D

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 Post subject: Re: Laminate?
PostPosted: Fri Aug 27, 2010 10:39 pm 
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Hen

Joined: Tue Apr 13, 2010 9:46 pm
Posts: 8
When it comes to veneering, if you're not perfect (That's most of us by the way) you can usually fill small gaps with glue and then sand. The sawdust finds its way into the glue and fills the imperfection.

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