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Preferred thread size for 2-3” boxes

I used 16tpi on the Baxter Thread Master for the Ebony boxes in the picture.

1767118107651.jpeg

I also have 12tpi, 16tpi, and 20tpi hand thread chasers. 20tpi is almost too fine. 12tpi is pretty coarse, ok for larger things.

Some things about threaded boxes
  • It's sometimes better to use fewer threads than more. It's nicer to twist a lid on with 2 turns than with 6.
  • Hard, strong, fine-grained wood cuts cleaner than some softer and coarser grained wood.
  • It can be tricky to calculate the diameters.
  • Threading end-grain boxes is recommended. And from very dry wood.
  • A different wood for the lid eliminates the effort of perfectly aligning the figure.
  • If chasing threads, Mark StLeger recommended practicing on PVC pipe. Mark hand chases hollowed halves to make a clever baseball box. https://s3.amazonaws.com/cmwt.production/paperclip/files/145/StLeger.pdf?1328369689
JKJ
 
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