Replies

1. 
   oldusty | Jul 04, 2007 07:18pm | #1

        Hi miller ,

                It does sound like your stock is what I learned to identify and call ( Timber Bound ) on some species it may be inherent and not caused from stress .

           Sometimes each board reacts in it's own way .

                 Sometimes if you can rough cut your pieces oversize and let off some of the stress and allow them to calm down before milling them to final sizes .

          While the African Mahogany is nice looking , what I have seen often has a lot of grain switching and broom grain and some ribbon effect .

               good  luck                 dusty

2. 
   creekwood | Jul 04, 2007 08:35pm | #2

   I don't think that species is really noted for stability. With that much movement, I'd not use it for that project. But you might just have some boards with a lot of internal stress. Like already stated, you might oversize the boards, then bring them down to your finished dimensions.

3. 
   Sean2112 | Jul 05, 2007 02:04am | #3

   Miller-

   I am currently trimming a house with a substantial amount of African mahogany, and while we haven't used any flatstock, the crowns and panel moulds range from dead straight to prezels. I am sure it has everything to do with the interlocking grain.

   By the way, have you noticed the aroma while cutting? Some of it smells okay, but some of it smells like a monkey cage!

   Regards, Sean

4. 
   chairmannz | Jul 05, 2007 02:15pm | #4

   Hello Miller,

   I do make chairs out of mahogany and some boards just like to warp or twist.
   What i do is cut oversize let it stand 2 weeks and the for the imported parts (back legs)mould mortise and drill all in one day and then put the chairs as quick as I can together.
   some recovered timber has the same problem and when have enough timber I do not use a board like that, but use it for blocks or cleats .
   Greetings from Bernhard.