Morse taper stuck :(

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Discussion

jimmyjimjim

7,340 posts

238 months

Tuesday 19th June 2018
quotequote all
motco said:
It is a long time since I used machine tools and I'd quite forgotten that a metal lathe tailstock does not have the slot because you eject the taper by the simple expedient of winding the tailstock back until the tool in the taper bottoms out on the rear end of the head and pops out.

My Dad called, he wants his super 7 tailstock back.

motco

15,956 posts

246 months

Tuesday 19th June 2018
quotequote all
jimmyjimjim said:
motco said:
It is a long time since I used machine tools and I'd quite forgotten that a metal lathe tailstock does not have the slot because you eject the taper by the simple expedient of winding the tailstock back until the tool in the taper bottoms out on the rear end of the head and pops out.

My Dad called, he wants his super 7 tailstock back.
hehe

TooMany2cvs

29,008 posts

126 months

Tuesday 19th June 2018
quotequote all
jimmyjimjim said:
My Dad called, he wants his super 7 tailstock back.
It'll never fit on a Caterham.

jimmyjimjim

7,340 posts

238 months

Wednesday 20th June 2018
quotequote all
TooMany2cvs said:
jimmyjimjim said:
My Dad called, he wants his super 7 tailstock back.
It'll never fit on a Caterham.
Just as well, it probably weights as much as most of the chassis.

minivanman

262 posts

190 months

Wednesday 20th June 2018
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Simpo Two said:
Hang on, if the teeth run in a groove how do they turn the wood round? The last thing you want is for the teeth to carve out a ring, no?

My current project (an enormous chunk of laminated plywood 13" long) proved just to big to turn inboard so I had to use the outboard side and faceplate - cue the whole lathe shaking back and forth until I got the worst off! It's now safely inboard (just) with tailstock so it's tamed now...
Tailstock pressure is what drives it - what I was describing with creating a shallow groove is to stop the teeth skidding off centre if you have a catch. If you get a catch and the piece stops moving, just a fraction more pressure on the tailstock has it spinning again.
I only tried turning something big and out of balance once on the myford, scared the poo out of me. Which is why there's the thick end of a ton of wadkin goodness waiting to come home...