New to me - Colchester Triumph

[Lewis_RX8]

Kurtis only uses inset tooling. All that requires is to set the tool height by some permanent method (grinding the holder or fitting a fixed shim) and he can swap and change at will.

Looks like the previous owner just welded shims to a few of the tools and kept some shims in the boxs of other tools so only mess about with their centre height once that way like you say.

I do agree the QCTP is nice and handy since I have used it on a student before but for the extra cost and butchering of the machine I'm not too fussed at the moment , However not used the lathe for that much yet so..

 

[Pete.]

Nothing whatever to stop you. Ami g a QCTP to fit on that stub and use common holders

 

[Hood]

4 ways work fine especially if you are just messing around. QC can make a huge difference if trying to make good use of your time. The best though for me is the capto I adapted for the triumph, man, that thing is brilliant, I wish I had thought about it sooner

 

[Lewis_RX8]

4 ways work fine especially if you are just messing around. QC can make a huge difference if trying to make good use of your time. The best though for me is the capto I adapted for the triumph, man, that thing is brilliant, I wish I had thought about it sooner

Capto - Please explain,I'm lost relatively new to this game

Nothing whatever to stop you. Ami g a QCTP to fit on that stub and use common holders

If something fits it that may be more of an option and keeping it common holders would keep the cost down I suppose. Will add to the DRO of nice to haves / upgrades list once its all running and making some chips and useful things.

 

[Pete.]

If you fit a DRO then the quick change is handy. Get aoad of holders and assign each one to a different SDM number. Then you can swap tools and change to that number and your settings for that tool are all ready to go.

 

[Fastdruid]

Nah its sacrilege
Got used to it now.
And spare holders are far from cheap.

I meant modify a QCTP to fit rather than the other way round. Or make one that fits.

It looks like if you bored a suitably large hole in one it would work.

 

[Hood]

I meant modify a QCTP to fit rather than the other way round. Or make one that fits.

It looks like if you bored a suitably large hole in one it would work.

Might not be possible with the internals of a QC.

 

[fizzy]

I meant modify a QCTP to fit rather than the other way round. Or make one that fits.

It looks like if you bored a suitably large hole in one it would work.

The central post is so big there would be nothing left!

 

[Hood]

Capto - Please explain,I'm lost relatively new to this game

Capto is a tooling system from Sandvik, really meant for CNC.
I was gifted a load and at first I made up some adapters for the CNC but hardly used them as I had already made a VDI turret for the CNC which meant I could have quick repeatable tool holder swaps.

I then thought about adapting one of the Capto holders for the manual lathe and it works great, just welded it to a modified QC tool holder so I could fit it to the Triumph.


Pic of a load of capto head, the lower ones in the rack. 1/4 turn reaeses them from the holder on the lathe.

 

[Fastdruid]

The central post is so big there would be nothing left!

How big is is?

Sure a Dickson would require something custom but some others might work. A Multifix size B has a 32mm bore for example (a size B has a minimum 30mm from base of compound to centre, don't know if that is suitable)

 

[Agroshield]

Might not be possible with the internals of a QC.

The central post is so big there would be nothing left!

I think it would have the best chance of success with a 2-sided Dixon type of holder: the eccentrics that clamp the tool holders are fairly slim and you could offset the central-post hole to the unused corner of the square block.

It might also be possible to reduce the central post on the factory casting and turn up a sleeve to allow you to go back to the 4-way if required. From the pictures, it has plenty of meat on it, but you would need to measure the underside to make sure you would not weaken it excessively by reducing its diameter.

What diameter and height is the central post? Which Dixon is the correct size for this machine? S2 or S3, see: http://www.lathes.co.uk/latheparts/page13.html

Edit: for Multifix sizes (see post above), see: http://www.lathes.co.uk/multifix/

 

[Hood]

You could always just chop it off like I did then in the unlikely event that you wish to reinstate the 4 way you could just make a bolt on boss like the newer Triumphs have.

 

[Kram]

If you want a qctp you can bore out some large bar such that it clamps onto the stub.
Or make up some more 4 way posts. Its only one bolt to spin out and swap them? quicker than changing tools around.

I've got one of these on the input, the power/amps gives a good idea how hard you are pushing the motor. With 5kw motor I would see it as a challenge to see what kind of chips that will make.

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[Lewis_RX8]

If you want a qctp you can bore out some large bar such that it clamps onto the stub.
Or make up some more 4 way posts. Its only one bolt to spin out and swap them? quicker than changing tools around.

I've got one of these on the input, the power/amps gives a good idea how hard you are pushing the motor. With 5kw motor I would see it as a challenge to see what kind of chips that will make.

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I'm sure it could get doing some nice actual chip breaking not some stringy mess's that I made on the mini lathe. What the worst than can happen with that challenge

Capto is a tooling system from Sandvik, really meant for CNC.
I was gifted a load and at first I made up some adapters for the CNC but hardly used them as I had already made a VDI turret for the CNC which meant I could have quick repeatable tool holder swaps.

I then thought about adapting one of the Capto holders for the manual lathe and it works great, just welded it to a modified QC tool holder so I could fit it to the Triumph.


Pic of a load of capto head, the lower ones in the rack. 1/4 turn reaeses them from the holder on the lathe.


View attachment 317440

I see thanks, a bunch of kit from Sandvik sounds expensive but if there's donated cant complain. Impressive setup on the quick change shelf and neat drill storage in the back there.

 

[Lewis_RX8]

Well didn't realize how much arsing around it would take to get the tool post set how I think it should have been. As @dan.taylor.1 says about the splines and cams , I should have really center popped the cams and shaft so I could just go back but then that would make it way too easy for me

Anyway think it's sorted and the rachet and lock is right it locks in at parallel however not sure on the turning the toolpost to select another tool movement need to try find a video of the toolpost working properly to compare it to.

Ta da

Then motor is now out the cabinet so going to soak the cabinet in gas turbine cleaner and various other degreasers then pressure wash it.

Also hopefully get some more off the lathe bed to clean up once the whole toolpost assembly is cleaned up and out the way then start on the next part and work my way through parts washing oil etc.

 

[Hood]

To select the next tool all you should need to do, if working properly, is push the handle as far as it will go then pull it back. The toolpost should rotate to the next position and lock down. It can take a few goes to get all the internal bits in the correct position so that it does work right.

 

[Munkul]

The central post is so big there would be nothing left!

That's ok, a lot of bigger lathes just have a tee slot in the compound slide for the toolpost, it doesn't NEED to be that huge great lump of a centre post. You'd get away with a simple stud for a QCTP, as long as it's flat to the deck then it will be rigid.

 

[Lewis_RX8]

To select the next tool all you should need to do, if working properly, is push the handle as far as it will go then pull it back. The toolpost should rotate to the next position and lock down. It can take a few goes to get all the internal bits in the correct position so that it does work right.

Alright perfect thats what I got it into in the end , But I was thinking I hadn't really used it before I took it apart so didnt know what it should feel like

 

[dan.taylor.1]

You'd struggle to centre pop the bits, they're hardened, I tried and blunted 2 centre punches

 

[Hood]

You'd struggle to centre pop the bits, they're hardened, I tried and blunted 2 centre punches

Centre slit with a slitting disc