Home » Audio » Craftsmen » Veneering video's
Veneering video's [message #29096] Tue, 25 May 2004 21:18 Go to next message
Bill Martinelli is currently offline  Bill Martinelli
Messages: 677
Registered: May 2009
Illuminati (1st Degree)
If your looking for some nice video on how to do some veneer work. Check out the 3 video's on Veneering MDF.
Like all things, this will only get you going in the right direction. I agree with most of these techniques and you can impliment this on a speaker cabinet if you want to do the whole box instead of individual panels. A well braced cabinet will not need balanced panels.

Bill


Re: Veneering video's [message #29107 is a reply to message #29096] Fri, 28 May 2004 14:17 Go to previous messageGo to next message
GarMan is currently offline  GarMan
Messages: 960
Registered: May 2009
Illuminati (2nd Degree)
Bill,

Is it true that even 1" MDF cabinets can warp if veneered on only one side? Have you seen if happen on any of your projects?

Re: Not a problem for a speaker cabinet [message #29109 is a reply to message #29107] Sat, 29 May 2004 10:59 Go to previous message
Bill Martinelli is currently offline  Bill Martinelli
Messages: 677
Registered: May 2009
Illuminati (1st Degree)
The short answer is; You have to balance work done with flat panels. You wont have to balance the inside of a completed box when veneering the outside.

When you veneer a flat panel that is planned to be cut after veneering. You have warp problems that even two inches of core material can bend or curl. If you are making your own 'panels' that your cutting and machining to build a cabinet, door or other case goods. You have to veneer both sides so you have a balanced panel. Its remarkable how much a panel will bow when unbalanced.

When you veneer a completed cabinet you wont have these problems. All the panels (top, bottom, sides, etc) are locked down at the corners and the internal bracing has created a honey comb effect to hold the mid areas of the panel in place. I have never seen any panel movement on even the largest (lets say 2'x4') side of a cabinet that has been correctly braced.

The warp is actually working in your favor as a speaker cabinet builder. The typical movement expected is for the edges to curl upward. This can not happen on a box because your edges are immobile being glued, nailed and screwed in place to the contiguous panels. Since the edges can not warp up, the center will be forced to a inward internal stress. This internal stress is now putting a preload on cabinet bracing. It's pretty cool how everything works together.

Bill



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