Thursday, October 11, 2012
Back to the drawing board
The club challenge for October in inside-out. I had an idea to incorporate my multi axis turning on the inside face. So I chucked up a piece of Home Depot redwood and turned a prototype.
I had to leave the ends square so I had some area to glue once its turned inside out. Normally I would turn all the way to the ends of the blank. Because this is only a prototype I didn't do the preliminary glue up.
Instead i turned it as a solid piece and then quartered it on my band saw before turning the sections inside out. The results weren't what I had in mind so it went in the recycling bin and I went back to the drawing board.
My second idea was more successful and closer to what I had in mind as my concept. I started by gluing 4 pieces together with a paper joint and turning a wide cove.
The paper glue joints were the split apart and the 4 pieces turned inside out and glued together permanently. I opted to turn on 4 axes with a 90 degree twist to match the 4 diamond shaped openings formed by the inside-out process.
It's not perfect but it proves the concept. The glue joints could be much better; that's one of the reasons I'm not a segmented turner. I'm also not sure how this concept could be incorporated into a finished piece. For now I'm just happy that I was able to get my proof of concept done.
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