tenon removal technique

i used this last night

i turned a fairly large platter (11.5") and couldnt turn off the tenon

i was discussing this with a friend and he said use a router bit in the drill press

i put a 5/8" bit in the drill bress and changed the belts to the fastest speed

i put a piece of lexan on the table to protect the surface of the piece you are working on

adjust the drill press down to remove less than 1/8" of material at a time

lock the quill and turn on the drill press and slowly move the piece into the bit to remove material

and i just would keep adjustinthe drill press quill down to remove all of the tenon and to even up the base of your project

cliff notes
remove a tenon by using a drill press as a bridgeprt milling machine

i can get pictures on my next one if anyone is interested

I would be interested in seeing pictures. Being new to turning, I wonder if this would be a good way to get the bottom of my bowls completely level.

Chris,

Nice technique. I'm still partial to the the jam chuck method myself. although for platters its hard to get it to jam.

Good luck
Keith

Absolutely send some pictures.

Ernie

ok here are the pictures i promised
setting up to make the cut
http://rolke.dyndns.org/ftp/woodbowl...SC03059web.JPG

first pass

http://rolke.dyndns.org/ftp/woodbowl...SC03060web.JPG
Yes that bit is running:)

tenon gone still a grove though
http://rolke.dyndns.org/ftp/woodbowl...SC03061web.JPG

taking off more material
http://rolke.dyndns.org/ftp/woodbowl...SC03062web.JPG

finished product
http://rolke.dyndns.org/ftp/woodbowl...SC03066web.JPG

any more questions?

Chris. I'm not a turner, but I caught up with your post. That's a gtreat technique. If I can suggest one possible refinement. A bowl bit might possibly be a better choice. It has a constant radius and a flat bottom, ergo no 90deg. edge like a straight bit. It works great as a surface planing bit in a trammel mounted router also. just a thought

you can do this easily on the lathe, just turn the bowl around, cushion a chuck or make some fixture and tighten down, jam it in and turn away most of the tenon. just leave a little nubb, remove ith chisel and sand a bit.
personally i use a vacuum chuck, works awesome.

the drill press and routerbit seems to be a good idea, but what make a bowl beautyful is a nice shape and finish of the bottom.
anybody who ever touches a bowl, always turns it around.
sascha

Quote:

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Originally Posted by sascha gast

you can do this easily on the lathe, just turn the bowl around, cushion a chuck or make some fixture and tighten down, jam it in and turn away most of the tenon. just leave a little nubb, remove ith chisel and sand a bit.
personally i use a vacuum chuck, works awesome.

the drill press and routerbit seems to be a good idea, but what make a bowl beautyful is a nice shape and finish of the bottom.
anybody who ever touches a bowl, always turns it around.
sascha

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the original problem i had was on a platter i did it was 11.5 " in diameter ( my lathe is a 1236 ) so i couldnt use my cole jaws on it and that was an easy way to remove the tenon