Author Topic: DTI Repar part 4  (Read 6981 times)

Offline doubleboost

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DTI Repar part 4
« on: July 16, 2013, 07:24:27 AM »

John

lordedmond

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Re: DTI Repar part 4
« Reply #1 on: July 17, 2013, 11:36:13 AM »
good repair there John considering they are £80 plus the Vodka And Tonic on Starrets site




Stuart

Offline mechman48

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Re: DTI Repar part 4
« Reply #2 on: July 18, 2013, 10:16:00 AM »
Nicely finished off John;
I would just like to make a comment on the way you stop your keyless drill chuck; whilst we older members do things that we've become used to doing over the years I would ask you to reinforce the point of NOT slowing the chuck down with your hand  :jaw:  :bugeye:    There may be raw beginners in the ME forums who may consider this method as 'the norm' & there could be a beginner who does not have a keyless chuck & unthinkingly /unwittingly tries the method shown with a normal keyed chuck..(common sense does not always prevail), & yes, I too, have done this with both types of chuck so am also guilty as charged.. even when I was teaching apprentices years back, my caveat to them was 'do as I say, not as I do'. My two penn'orth said, as always a super video well shown & I look forward to your next one.

Regards from Smoggie land
George
George.


Always look on the bright side of life, & remember.. KISS..' Keep It Simple Stupid'

Offline paulmo101

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Re: DTI Repar part 4
« Reply #3 on: July 18, 2013, 02:13:42 PM »
Great Video John - thanks again for taking the time to film these.

Cheers

Paul

Offline Fredbare

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Re: DTI Repar part 4
« Reply #4 on: July 18, 2013, 04:09:01 PM »
Thanks John, I always pick up something from your videos.

John

Offline mosey

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Re: DTI Repar part 4
« Reply #5 on: July 18, 2013, 05:16:20 PM »
John,
You seem to me to use a large amount of force to lock your tool in the spindle. Could you comment please?
Mosey

Offline doubleboost

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Re: DTI Repar part 4
« Reply #6 on: July 18, 2013, 05:23:48 PM »
Hi
Are you referring to the milling machine
I like to tighten things up properly but not to tight
The draw bar key only has a short handle
John

Offline Arbalist

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Re: DTI Repar part 4
« Reply #7 on: July 18, 2013, 05:26:50 PM »
John,
You seem to me to use a large amount of force to lock your tool in the spindle. Could you comment please?
Mosey

I noticed that as well. Plain collet nuts need a little turn to undo but nothing like that normally and the ball bearing ones I now use far less than that. In fact for some operations on small stuff I can get away with tightening and undoing by hand!

Talking about the lathe here, not the mill.

Offline mosey

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Re: DTI Repar part 4
« Reply #8 on: July 18, 2013, 05:40:37 PM »
Actually, I'm talking about both. How much is right for the mill when using ER collets?
Mosey

Offline doubleboost

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Re: DTI Repar part 4
« Reply #9 on: July 18, 2013, 05:50:08 PM »
I use R8 collets in the mill
The way I tighten mine I have never had a cutter "slip turn" in the collet
Same with the ER in the lathe
I tighten nuts and bolts all day for a living
I think it is just a feel you get for things
Using a standard ER spanner I think it would not be possible to over tighten the chuck
Thanks for the interest
John

Offline Trigrman

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Re: DTI Repar part 4
« Reply #10 on: July 20, 2013, 12:42:55 PM »
John,
Repairing the DTI holder was a very informative series. That's the first time seeing a wiggler used. Maybe someday you can video other uses for that too. BTW, where did wou get that square body ER32 collet holder you had clamped in your vise in part 4? Keep up the great work.

Offline doubleboost

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Offline NickG

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Re: DTI Repar part 4
« Reply #12 on: July 20, 2013, 05:46:32 PM »
Nice 1 John. Got my ER32 hex and sq block collets from arc euro for Xmas, came to use them the other day then realised my set is ER25 :-( so I have some unused for sale if you want them. Tool arc a while to get them back in dont know whether I'm stock at moment.
Location: County Durham (North East England)

Offline NickG

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Re: DTI Repar part 4
« Reply #13 on: July 20, 2013, 05:52:08 PM »
Ps depends what your holding in the collets, they have a range of 1mm so if you're gripping something near the bottom end if the range it takes a lot more tightening and loosening as it is forced further into the taper. If its size for size ie at the top of the range it won't need much at all eg using a 10mm collet with a 10mm dia cutter.
Location: County Durham (North East England)