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Parting tool use on cross gain orientation?

Joined
May 22, 2020
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Bloomington, IL
Is it inadvisable to use a parting tool on a cross grain piece to separate the project from the chuck? Only used to part endgrain pieces?
Thank you for your advice.
 

hockenbery

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the Many risks of doing it make most folks avoid it. It can be done.
the parting tool does not cut cross grain well usually leaving tear out.
the risk of a catch on the endgrain will pop the whole piece free from the tenon in an instant.
once the cut diameter gets less than about an inch the piece easily breaks free.

i much prefer revers chucking bowls and hollow forms regardless of grain orinetaion
this allows the bottom to be finished turned.

a saw is better than a parting tool.

on occasion I will use a parting tool to cut pieces in half or to cut a squares ring free from a piece or cut slated rings to make a stacked ring piece like a birdhouse roof.
 
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hockenbery

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Reverse chucking a bowl is something I do in the video of a demo below.

fast forward to 33 min - I measure the bottom thickness eliminates any chance of making a funnel without knowing you are likely to do so.
fast forward to 34 min - to see the reverse chucking.

practice with the spindle gouge Until you are comfortable using one.
a common mistake in reverse turning is to let the spindle gouge get pulled under the little pin you make.
working more on the top with the roll rest a tiny bit above center eliminates that risk.


Mounting and turning a dried bowl -
View: https://www.youtube.com/watch?v=sCZWsHB4vlM
 
Joined
Aug 14, 2007
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Eugene, OR
I have seen parting/bedan/'sizing tools used to form tenons. and while they do a fair job of forming the sides of a tenon. I would still clean it up with a gouge, mostly for less tear out. They can be used to part off bowl blanks, but for me, I don't leave enough of a recess to make a parting tool worth the effort. It would be the same thing with removing a tenon. If you have a long tenon, you are kind of wasting wood, and I am frugal...

robo hippy
 
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