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This must be Art? or Boom boom mancini

John Hicks

John Hicks

Joined
Jan 23, 2020
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Location
Shingletown CA
One of my attempts at an emerging hollow form out of a live edge punky maple burl. Boom said the wood at 1000 rpm when I cut the bottom too thin and it popped the whole piece in chunks. My lesson? keep wasting my time with punky maple burl of course!

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John Hicks said:
One of my attempts at an emerging hollow form out of a live edge punky maple burl. Boom said the wood at 1000 rpm when I cut the bottom too thin and it popped the whole piece in chunks. My lesson? keep wasting my time with punky maple burl of course!
Click to expand...

glad you were not hurt.
I turn my face grain hollow forms using a faceplate. I turn endgrain hollow forms with a tenon or a faceplate.
I urge you to use a faceplate for your next attempt.

in my experience (and maybe yours ) a recess is flirting with disaster.
While way weaker than using a tenon or faceplate it makes it difficult to judge the bottom thickness.

bottom thickness is easy to measure with calipers, lazer, or video with a tenon or faceplate.
Nearly impossible with a recess as you can’t measure where the corner of the recess is.

This is a video clip from a hollow form demo that shows mounting the faceplate.

View: https://www.youtube.com/watch?v=-o4l092k8qk
 
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