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Building a hollow plank
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Topic: Building a hollow plank (Read 8072 times)
DN5386
Class Member
Posts: 2
Building a hollow plank
«
on:
January 22, 2009, 09:23:26 PM »
I've been hearing about hollow DN planks. Anyone know where to find a plan for one?
TIA,
Jim K
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ROBERT RAST
Class Member
Posts: 17
Re: Building a hollow plank
«
Reply #1 on:
January 23, 2009, 01:52:09 PM »
I built one several years ago and it worked quite well for my weight about 165lbs although it was a little soft.If you are heavier might not be a stiff enough .
we had laminated skins 3/8" for top and bottom.
we used spruce strips about 11/8" wide at front and back edge with blocking for studs and over chocks. and some smaller strips diagonaly between front and backstrips. I still use the plank but have since added glass on top and bottom to get proper deflection.
Is it worth it ?? dont know dont see any real advantage since I had to stiffen with glass. just use a light weight filler in middle like spruce, cedar or basswood with hard wood top and bottom ash,maple,birch. Deflection numbers are above in another thread, My planks go about 1 1/2" with my weight or 1 5/8 with additional 30 lbs. Good luck building.
DN1313
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