« previous next »
Pages: [1]

Author Topic: cumura  (Read 1348 times)

0 Members and 1 Guest are viewing this topic.

Offline shaneusername

  • Member
  • Posts: 2
cumura
« on: January 03, 2011, 10:51:59 pm »
Anyone have much experience with cumura?  Have some on hand and heard it would work with a bamboo back but haven't read much about it.  Thoughts?  Coach
Logged

Offline Parnell

  • Member
  • Posts: 5,556
Re: cumura
« Reply #1 on: January 03, 2011, 11:10:57 pm »
No, but I saw on the web it's specific gravity is about .9

If backed with bamboo or hickory it would probably be good, I'd figure.
Logged
1’—>1’

Offline Marc St Louis

  • Administrator
  • Member
  • Posts: 7,877
  • Keep it flexible
    • Marc's Bows and Arrows
Re: cumura
« Reply #2 on: January 04, 2011, 12:06:16 am »
Cumaru is a dense wood but a bit low in elasticity.  The one bow I made with it failed suddenly in compression,  it just quietly folded in on itself as I reached a 28" draw.  The bow was a Bamboo backed RD bow 62" long.  It might have survived if I had made it a bit longer
Logged
Home of heat-treating, Corbeil, On.  Canada

Marc@Ironwoodbowyer.com

Offline medicinewheel

  • Member
  • Posts: 3,629
Re: cumura
« Reply #3 on: January 04, 2011, 05:03:42 am »
Saw nice pieces of Cumaru at the wood store, but all I could find out about it was "compression problems".
Logged
Frank from Germany...

Offline shaneusername

  • Member
  • Posts: 2
Re: cumura
« Reply #4 on: January 04, 2011, 11:00:27 am »
Thanks everyone--Thats what I needed to know--Coach
Logged
Pages: [1]
« previous next »