small lathe big tools

[doubleboost]

Hi
Lads

I have been that busy with vids I keep forgetting to post pictures:ouch::ouch:
I have recently been given some lathe tools

They need machining to fit my tool holders


The pictures are "grabbed" frames from a hd video


I was also given a 6 inch mag chuck


I had a back plate to modify




All this can be seen on this sundays video
John

[Jonny]

Used to turn em down when had an ML7 without QR.
Ok if decent tools like Kennametal, Ceratizit, Iscar and Horne but wouldn't risk it with the cheap imports.

I now use the 250-200 series and only have one holder untouched milled out of 23. Biggest tool in is a 1" RH still ample unless taking 1" off, majority are 20mm high including threading, easy on.
Don't think theres much height difference between the 250-100 and 250-200 series.

[Arbalist]

They had half a dozen Harrison M300's where I used to work which they bought a batch of new tools for. The new tools fitted all of the lathes fine except one which must have had a slightly different tool post. They couldn't touch the tools with a standard milling cutter so I took it home and trimmed an eighth of an inch off for them on my mill with a carbide bit. Very tough stuff. If I remember correctly they were Sandvik Coromant tool holders.

[doubleboost]

Hi
Lads
Did a bit more with the chuck back plate
Made some "pointy studs" to transfer the hole pattern


A gentle tap with a soft hammer
 


:yikes::yikes::yikes::yikes::yikes::yikes::yikes:

The marks have been transferred with no maths at all :smile::smile:


Lined up with the super accurate eye ball and pointy wiggler






John

[krv3000]

good post 

[vtsteam]

Sure is! I use transfer punches just about every time I do something in the shop. There's a million uses for them -- particularly when doing stuff with old machinery and equipment. I have a big set of them and I also use them as gauges to test hole sizes -- better than drill bits for that.

[Jonny]

Theres an easier way to fit up.

Just pick up from any hole in chuck or whatever, without moving it place backing plate register over and drill through.
Mark datum
Will have to keep removing backing plate to pick off for each subsequent hole then replace to drill.
You don't even need to clamp the chuck down just hold and move in to position, that easy.

Sandvik not the best got rid of all mine bar one tool, there are many of same calibre Iscar, Kennametal, seco etc far better that don't make it almost impossible to find the tips and spare parts required. Mind the others not too far behind.
Used to turn the lathe tools down with Kennametal NSR2020K3 with NR48R tips or just NB4R K68 tips clamped in tool holder. Just found a Sandvik hack sawed down the length to reduce height, theyre softish.

[micktoon]

Good post John , the photos are spot on for being taken from a video  , it will be interesting to see how firm the mag chuck can hold things, should be a handy addition to your tooling.
  Cheers Mick.

[mosey]

John
[/quote]
Love your anvil, John!
Mosey

[Jonny]

Keep em coming Johnny, just pointing out another way of doing it for others to follow, nothing more.

[doubleboost]

Hi
Lads
Managed to finish the back plate with my "left hand":smiley-dancenana::smile::smile:



All the bolts screw in:smiley-eatdrink004::smiley-eatdrink004:



Parted off to length





It looks the part



No run out at all
(watch the video)

John