Re: Re: At the hobby shop . . . What's the density?

From: Bill Gowen <b.gowen_at_earthlink.net>
Date: Sat, 28 Jul 2007 17:14:41 -0400

My last (and only) order from Lonestar had some 1/32" sheets that were about the right weight for 6# 1/32. The catch was that they were only about .025 thick and were really 7-8# wood.

  ----- Original Message -----
  From: Marty Sasaki
  To: Indoor_Construction_at_yahoogroups.com
  Sent: Saturday, July 28, 2007 5:00 PM
  Subject: [Indoor_Construction] Re: At the hobby shop . . . What's the density?


  --- In Indoor_Construction_at_yahoogroups.com, "Bruce McCrory"
  <hbm55_at_...> wrote:
>
> >>Is there a table somewhere that allows me just to
> weigh standard size balsa sheet in grams and then look up its density
> in pounds per cubic foot?<<
>
> This sounds like a question I had a few years ago. I used to carry a
> sheet of densities, like the one John Barker posted, and a little,
> dangly postal-type balance, that could fit in a pocket. They may still
> be in my brief case (a man's purse).

  I would also recommend measuring the thickness with a micrometer or
  thickness gauge. As Lots of the balsa that I've seen that is marked as
  1/32 measured around .040 in thickness. The difference can translate
  into a pound of difference.

  This is a useful thing to do with balsa that you order from places
  like LoneStar. The thickness is more consistent but a recent order for
  1/32, 1/20, 1/16 contained sheets of .027, .031, .035, .040, .043,
  .045, .050, .053, .060, .065

  Marty Sasaki



   

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Received on Sat Jul 28 2007 - 14:14:47 CEST