Darryl Keil Last Activity 2024-10-10 3:42 PM
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woodsmoke

Posts: 10

Joined: 2018-04-18
Location: SE Pa

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Subject : New guy question on if flattening is needed
Posted : 2018-04-21 4:29 PM
Post #37734
I have two lengths of spalted Beech. It has slight 2 or 3 1/4" high waves running with the grain. Can I expect the vacuum press to flatten them out?
Or, should I attempt to flatten.
I can run a test, but a tip could save me some work.
Thanks.


 
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Don Stephan

Posts: 825

Joined: 2003-07-18
Location: Cincinnati, Ohio

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Subject : RE: New guy question on if flattening is needed
Posted : 2018-04-21 6:33 PM
Post #37735 - In reply to #37734
My rule of thumb, which I probably learned from Darryl, is if the wrinkling makes taping seams together difficult, flatten. 2" high sounds HUGE.


 
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woodsmoke

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Joined: 2018-04-18
Location: SE Pa

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Subject : RE: New guy question on if flattening is needed
Posted : 2018-04-21 9:19 PM
Post #37736 - In reply to #37735
Sorry, I wrote that poorly. There are 2 or 3 wrinkles that are 1/4" high.


 
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Darryl Keil

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Joined: 2003-05-22
Location: Maine

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Subject : RE: New guy question on if flattening is needed
Posted : 2018-04-23 8:44 AM
Post #37737 - In reply to #37736
With wrinkles that small I cannot see there would be any need to flatten. Can you tape the sheets together and get the taped joint lined up well?


 
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woodsmoke

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Joined: 2018-04-18
Location: SE Pa

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Subject : RE: New guy question on if flattening is needed
Posted : 2018-04-23 8:01 PM
Post #37738 - In reply to #37737
I went ahead and did a test with it.
Problem was that after smoothing the veneer on the glue covered substrate, within minutes it curled up like crazy. Splits opened allowing curl everywhere.
Looked like a plate of potato chips.
I covered it with a plastic sheet and the 3/4" melamine and bagged it up.
The press worked great. Came out flat.
The remaining veneer is not full of splits like the short cut off from the end. I should be ok.
Thanks



 
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Don Stephan

Posts: 825

Joined: 2003-07-18
Location: Cincinnati, Ohio

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Subject : RE: New guy question on if flattening is needed
Posted : 2018-04-24 7:50 AM
Post #37739 - In reply to #37738
Any cracks/splits in veneer I secure with 3/4" veneer tape before assembly, as I do book and slip match seams. If wary, I may cover the entire show face using 2" veneer tape.


 
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Darryl Keil

Posts: 1453

Joined: 2003-05-22
Location: Maine

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Subject : RE: New guy question on if flattening is needed
Posted : 2018-04-24 9:46 AM
Post #37740 - In reply to #37738
Don’t take the time to smooth the veneer out onto the substrate. Once you place the veneer on the glue covered substrate get it in the bag ASAP. The bag will smooth the veneer out just fine.
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