From: muratlanne@gmail.com   
      
   "Snag"  wrote in message news:vdkupa$3iv9n$1@dont-email.me...   
      
      Every truss used in our house has plywood plates and nails . I   
   cheated though , I used a pneumatic nail gun . The scissor trusses for   
   the vaulted ceiling in the kitchen/dining room were the most fun .   
   Nothing has failed and killed anybody yet ...   
   Snag   
      
   -------------------------------   
      
   The rings hold shear forces in joints in thicker timbers, as in post and   
   beam framing. In a truss the butt joints in compression don't need them,   
   those in tension won't benefit from them. Other steel shapes can be used to   
   distribute and transfer the loads such as vertical ribs in saw kerfs, rings   
   are just easy to cut and install in heavy timbers with a hand-held drill.   
      
   In this case the beams and columns are 5" wide, because I could cut 4 from a   
   21" wide cant (squared log) that barely fits between the uprights of my   
   bandsaw mill. The shed is overbuilt to store the less than perfect wood   
   somehow rather than use it efficiently. These old trees were cut down   
   because they could fall onto my or a neighbor's house and had   
   disappointingly little clear furniture grade wood in them.   
      
   I've been using the 2" pot collet for the first time to turn the steel blade   
   guide rollers. It's repeatability is a considerable help for turning several   
   parts to identical length and diameter, in this case boring the four ball   
   bearing recesses to a hand pressure fit.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)