tenon removal technique

[Chris Rolke]

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

[Silas Smith]

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.

[Keith Nielsen]

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

[Ernie Nyvall]

Absolutely send some pictures.

Ernie

[Chris Rolke]

ok here are the pictures i promised
setting up to make the cut
http://rolke.dyndns.org/ftp/woodbowls/tenon%20removal/DSC03059web.JPG

first pass

http://rolke.dyndns.org/ftp/woodbowls/tenon%20removal/DSC03060web.JPG
Yes that bit is running:)

tenon gone still a grove though
http://rolke.dyndns.org/ftp/woodbowls/tenon%20removal/DSC03061web.JPG

taking off more material
http://rolke.dyndns.org/ftp/woodbowls/tenon%20removal/DSC03062web.JPG

finished product
http://rolke.dyndns.org/ftp/woodbowls/tenon%20removal/DSC03066web.JPG

any more questions?

[Mike Cutler]

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

[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

[Chris Rolke]

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

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