Replies

1. 
   oldusty | Aug 08, 2009 05:08pm | #1

       It seems I've seen them , you can make a really tight fitting lid .

     I've seen some that had a small pin on each side that went in a groove and met another groove going sideways , when you turned the lid it locked in the side grooves.

         There must be a way besides having the correct size wood tap and die, you could carve them.I look forward to a solution also on this .

           regards     from Oregon            dusty

      

2. 
   joinerswork | Aug 08, 2009 06:20pm | #2

   jl,

   Not that I've actually done it, but have read about threading with a tool that looks like a dinner fork, only the tines are vee-shaped vvv --such that turning at a very slow speed (I think the writer was using a treadle lathe) the leading point of the tool is advanced sideways into the work and once started, is self-feeding .  A similar, but right-angled bent tool is used to scrape the internal threads into the inside of the lid, held in a chuck or fastened to faceplate.

   Ray

3. 
   Jimurock | Aug 08, 2009 08:24pm | #3

   http://www.toolsforworkingwood.com/prodimg/ms/pdf/MS-THRDCH.pdf

   Jim.

4. 
   KeithNewton | Aug 09, 2009 11:33am | #4

   All that I have done, were vessels which were turned green, so they had oval openings when they dried. I then turned the underside of the lid with a smaller neck which would fit the hole, which would then flair out. I then carved away most of that leaving a key tab at one end, which would match a slot carved into the opening.

   The other end of the lid lip was carved / ground with a longer oval shape which when tilted would slip through the opening first, before dropping the key tab through the slot. A half turn would then align the grain of the top with the vessel, but require a half turn to find the key pin alignment, and only if you are tilting it the right way to lift out.

   This sure stops the lid from hitting the floor when people who don't know how to handle work like this.

   Make sure that the vessel is through drying before you try this. Otherwise, it will capture a close fitting lid that can't be taken off.

5. 
   forestgirl | Sep 27, 2009 07:31am | #5

   Jlroch, I'm taking my first turning class this weekend.  Happened to remember that the instructor, Bonnie Klein, mentioned something about a threading jig for her Klein mini-lathe.  It can also be adapted to other mini-lathes.  Click below for a couple of explanatory pages.  If you have a specific question you'd like me to ask her (such as "Does anyone else make these?") LMK, I'll check with her tomorrow.

   Click here for Google results on lathe "threading jig"

   Click here for info on adapting Bonnie's threading jig

   and here for product and ordering info.

   forestgirl -- you can take the girl out of the forest, but you can't take the forest out of the girl ;-) 
   
6. 
   jako17 | Sep 28, 2009 06:21am | #6

      There are several ways to cut threads on a lathe

      1) a thread cutting attachment e.g bonnie klien ( simple, mechanical, low skill level required) but effective

       2)    using thread chasers where the thread is stroked into the wood in time with the rotation of the spindle.One uses an internal and an external chaser,I would suggest starting with 20 tpi as this travels slower along the wood.This is the method I use and it has been arround for hundreds of years.There is a screw topped box in existance that contains a sillouette of Anne made for Henry the Eighth with rose engine decoration on the lid.It is quite possible to cut threads on an electric lathe if it will rotate at 400 rpm or below.Most ivory turners of the last century threaded pieces together as even then it was a valuable material.It is however preferable that a dense hard wood is used for all threading or they will crumble.

    

    

    

    

7. 
   jako17 | Sep 28, 2009 07:05am | #7

   Oops   forgot picture!!!!!! This was chased by hand on my General 260