Darryl Keil Last Activity 2025-09-09 11:09 AM
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Paul Kierstead

Posts: 39

Joined: 2008-01-24
Location: Ottawa, ON

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Subject : Honeycomb Sanity check.
Posted : 2008-02-06 2:27 PM
Post #34366
I'm working out the design paramters for a desk. It will (or would like to...) span, without support, about 5'. Assume the desk will have people lean on it and the like. From my reading of the forum, I think 1/4" skins on 1" honeycomb? Or does the honeycomb need to be thicker (i.e. 2x1/2 or 3/4)? Or can I get away with 3/4"...


 
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Darryl Keil

Posts: 1455

Joined: 2003-05-22
Location: Maine

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Subject : RE: Honeycomb Sanity check.
Posted : 2008-02-06 8:36 PM
Post #34369 - In reply to #34366
Paul,

You will probably be OK with the 1" honeycomb. A double layer is even stronger, like two 1/2" or 3/4" honeycomb with a separator sheet of, lets say 1/8" ply, in between.

Darryl


 
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Don Stephan

Posts: 825

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

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Subject : RE: Honeycomb Sanity check.
Posted : 2008-02-07 8:18 PM
Post #34376 - In reply to #34369
Care to be our volunteer to develop some test results on honeycomb and skin thickness vs strength?

I made a 4x8 auxillary assemble table top by covering 3/4" honeycomb with 1/4" plywood on each side. With sawhorse supports about 6' apart there is some sag in the middle with perhaps 5 pounds of downward force in the middle. VERY unscientific but if you want great stiffness I'd consider a double layer of honeycomb with 1/4" ply between if that would be stiffer than thicker single layer of honeycomb.
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