Retracting Toolholder

[spuddevans]

I have come up with an ingenious device which retracts automatically
at a predetermined point set by the operator.
the tool retracts about 1/4 to 3/8 of an inch and at the same time can
disable the motor drive.
Thus I can cut an external thread on work peice on a myford lathe at between 200 and 400 rpm.
I am also working on a project which does the same for internal threads
Chris Eardley-Russell.

Well don't just post up saying that and leaving us all hanging Start a new thread showing us all what and how you've done it please stickpoke th_wwp


Tim

 

[Chazz]

I built the Hemmingway kit with 2 mods, a rear dovetail to directly mount the tool to the QCTP rather than use up a tool holder and a more rigid setup. Second mod, I milled out a 1/2" pocket and cut a 1/2" TNMG tool holder in half to fit the pocket rather than using the 'round' tool.

Cheers,
Chazz

 

[ceardley]

I wiil try. I have some photos of the device but at present do not know how to down load them.
I also have to make a video.
Best,
Chris E-R.