Quick Change Toolpost and Holder systems

[Sub MandrelParticipant @submandrel]

Better picture with first toolholder. Strange colour cast though…

Yes, it is making a stick of height adjustment nuts!

Mighty chuffed with the knurling – 5" of perfect knurl with my home made scissor knurler – my first proper home-made tool.

Neil

[Peter EParticipant @petere]

That tool holder is looking really good Neil, nicely executed!

BR

/Peter

[Sub MandrelParticipant @submandrel]

Don't it always seem the same, you don't know what you've got 'til it's gone… as the song goes.

I got a pile of eight more toolholder blanks, milled out rectangular recesses for the dovetails (would have been a nightmare without my stiffening plate), then put one in the clamping opiece of my knurling tool. and pleased to see the endmill still looked like new at the end.

Got the dovetail cutter out, and finished the dovetail in the knurler and six of the blanks, then almost at the end of the seventh blank, the bloody nylon gear inside the X2 mill went

I've opened it up and it looks like the gear exploded! I can find most of the 20 tooth gear that wasn't engaged, but of the 12-tooth end that was, all I can find are about half of the teeth. They must have completely stripped, before the rest of the gear shattered.

My calculation is that it is 2.25mod, but without atwo teeth side by side to check the cutter against and the thought of having to botch it up on the lathe, I think I might run up the white flag and order a metal replacement on payday.

Had to happen sooner or later – but it's interesting how short the time was once I had the mill rigid enough to start cutting close to its capacity.

Neil

[Peter EParticipant @petere]

Thanks to this thread I restarted the making of the holders and now I have these:

Ordinary Tool holder

Boring Bar Holder

Threading tool holder Mike Cox style (but I have to invent a solution to the height setting as the current disc will foul the moving part of the holder.)

… and with the tool bit raised

… And they all fit perfectly and is firmly held in place on the post

BR

/Peter

[DMBParticipant @dmb]

chris j,

I had trouble with rapid – depletion of charge in my camera batteries. I have stopped using rechargeables, now only use non-rechargeables and carry spares if going out somewhere.

Have recently left camera at home and relied on mobile phone`s camera – Samsung GS11 – brilliant quality photos but in fairness to camera, it has more pixels.

John

[Sub MandrelParticipant @submandrel]

Just in case anyone wants to build the 'Improved Nakamura' QCTP toolpost design and can't access the back issues of MEW, there's a description of how to make it and a set of toolholders and a download of the plans HERE

Neil

[John RuddParticipant @johnrudd16576]

Very generous of you Neil…..

Having read the first instalment of the article I feel the need to make one… Even though I already have a version of a qctp  on my mini lathe.Have to say this one is better….

Thanks again..

Edited By John Rudd on 19/11/2015 21:10:46

[Paul BarrettParticipant @paulbarrett57424]

Posted by Stub Mandrel on 19/11/2015 20:55:25:

Just in case anyone wants to build the 'Improved Nakamura' QCTP toolpost design and can't access the back issues of MEW, there's a description of how to make it and a set of toolholders and a download of the plans HERE

Neil

Just looked at your link Neil and your page with photo's at Barrs Beacon. I am afraid your a/c recognition is a little dubious. What you think is an Ryanair A320 is actually a 737-800 and the Air France 737 is a Airbus A320.

[Sub MandrelParticipant @submandrel]

Thanks, sorted now – I thought I had already sorted it but must have got them muddled.

NEIL

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