Darryl Keil Last Activity 2024-10-10 3:42 PM
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Bob Ballard

Posts: 5

Joined: 2011-09-13

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Subject : Bending Ply Not Uniform
Posted : 2017-10-05 6:34 PM
Post #37659
Has anyone had issues with bending plywood having uneven thicknesses?
My suppliers in Florida all sell the same 3/8 bending ply, and there have been issues with unevenness throughout the same sheet. This has been causing lows and highs on both the forms and finished products. I can send some pieces through my wide belt, and have considered surfacing larger pieces on my CNC, but would rather not have to go through the extra step.


 
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Don Stephan

Posts: 825

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

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Subject : RE: Bending Ply Not Uniform
Posted : 2017-10-05 7:14 PM
Post #37660 - In reply to #37659
Once I used 3/8" bending ply, what some people call "wacky wood," on a project but it did not involve veneering. For bent form veneering I would suggest 1/8" bending plywood, which is more along the lines of a premium plywood. Think I found it at DSI, Inc. Again no experience veneering a bent lamination of this, but I found it to be very well made and consistent.


 
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mikemcnerney

Posts: 35

Joined: 2012-07-19
Location: Ottawa, On

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Subject : RE: Bending Ply Not Uniform
Posted : 2017-10-05 9:46 PM
Post #37661 - In reply to #37659
Yes that's been my experience too. I've just learned to work around it.


 
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Don Stephan

Posts: 825

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

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Subject : RE: Bending Ply Not Uniform
Posted : 2017-10-06 6:59 PM
Post #37662 - In reply to #37659
The one time I used 3/8" bending ply, I also felt it did not bend consistently on the form.


 
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Enrico Konig

Posts: 74

Joined: 2006-01-06
Location: Vancouver, BC

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Subject : RE: Bending Ply Not Uniform
Posted : 2017-10-07 12:36 AM
Post #37663 - In reply to #37659
I have used hundreds of sheets of 3/8" rubberply. Thankfully I have never had an issue with uneven thickness. That would be a major problem. For the past several years, I have been sourcing it from Continental Hardwoods in WA. Once each sheet had some fairly serious lengthwise, cross-grain grooves, so I was offered it at half price. So I ordered as much of it as I could store.

One thing for sure. It is often much too rough to veneer directly over. So I always cover the rubberply with 1/8" Italian bending poplar.



 
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Aaron Paris

Posts: 55

Joined: 2014-11-28

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Subject : RE: Bending Ply Not Uniform
Posted : 2017-10-11 9:43 AM
Post #37664 - In reply to #37659
Hey Bob. I've gone through the same process with the wide belt sander. A product that I have recently switched to is Econokore. I believe Daryl has this product on the website. It's 3/8" thick,smooth and uniform in thickness. It's not the answer for every situation but it's a good alternative to bending plywood.
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