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Bob La Londe[_7_] Bob La Londe[_7_] is offline
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Default MO How To: Remove a cracked set screw


On 5/27/2019 9:12 AM, Jim Wilkins wrote:
"Bob La Londe" wrote in message
...
On 5/25/2019 10:25 PM, Larry Jaques wrote: On Wed, 22 May 2019
14:11:28 -0700, Bob La Londe
wrote:

On 5/22/2019 9:49 AM, Leon Fisk wrote:

Do you have enough material to just drill a bigger hole, thread
and use
a larger set screw?

I don't know how hard the tool holder is, but that's not a bad
option.

Gonna do them all/both, so it doesn't happen again? Good man.

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Actually I want a TC tapper or three for this mill. I am seriously
considering using a 1/2 shank ER collet chuck to make a first one
out of this tool holder. The the set screw becomes mute as there
will be a "slot" for the anti twist pin in the straight shank collet
chuck. I've already made a couple TC tappers that way for my TTS
style tool holder mill out of 1144 so my only concern becomes the
hardness of this tool holder and how to hold it in the lathe.
Probably with an expanding mandrel.


I confused TTS with TTC lathe toolholders.




TTS is a 3/4 straight shank tool holder with a flange that has a recess
to clear a flush ground 3/4 R8 Collet when it extends from the spindle
to loosen a tool. The tool indexes repeatably off the spindle nose.
TTS I believe is a trademark owned by Tormach and stands for Tormach
Tooling System. I use the term TTS "style" to indicate the tool holders
I made are not made by Tormach.

This tool is a Kwik 200, but I plan to make some TC tappers similar to
ones I made with a TTS style shank and body.