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Thread: Scroll Chuck Drive centre
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12th April 2018, 02:32 PM #1
Scroll Chuck Drive centre
Hi,
In the pictures below I have a standard drive centre and I want to mount it in my scroll chuck. I have the following questions, will it hold a spindle or will it slip? And how would I true it up as the tapered profile allows it to lean a little?
I don't think this is possible/a good idea but I thought I would ask the question before I parted with cash and bought a drive centre insert.
IMG_20180412_124450.jpg
IMG_20180412_124522.jpg
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12th April 2018 02:32 PM # ADSGoogle Adsense Advertisement
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12th April 2018, 02:38 PM #2
Close the jaws on the slight depression where your thumb is in the first pic.
You do not want to close the jaws on the morse taper, as it may cause damage and limit it usability in the future.Pat
Work is a necessary evil to be avoided. Mark Twain
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12th April 2018, 03:25 PM #3
Oh dear.
That makes sense, thanks.
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12th April 2018, 07:01 PM #4GOLD MEMBER
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I may be wrong, but what you have is designed to be inserted into the Morse taper of your spindle without using a chuck. There are other units that are designed to be inserted into a scroll chuck that look nearly identical, except they are quite stubby.
If your lathe has a Morse taper on the inner of the spindle, then you can simply insert it there firmly and you will have a perfect drive. I have a few of what you have in your hand and this is exactly what I do with them.
I would also suggest you undo the screw and use something like blue Loctite to hold it in place in the exact position where everything works. Meaning the spring loaded point which goes in and out has just enough pressure to allow it to move, but doesn't fall out; which can happen.
Mick.
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13th April 2018, 08:14 AM #5
No idea if you can get these in Aus, but I use a 2MT Carrier in my chuck if it's only a quick something. Like this one here - https://www.axminster.co.uk/axminste...rriers-ax21686
But truthfully, if you want accuracy, take the chuck off and put the drive centre into the headstock.Dragonfly
No-one suspects the dragonfly!
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14th April 2018, 08:40 PM #6There are other units that are designed to be inserted into a scroll chuck that look nearly identical, except they are quite stubby.
but I use a 2MT Carrier in my chuck if it's only a quick something.
take the chuck off and put the drive centre into the headstock.
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15th April 2018, 08:31 AM #7GOLD MEMBER
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How about a piece of wood held in the chuck, and turn a Morse taper socket in it?
I've gone the other way, and turned male Morse tapers on bits of wood, so that's what I'd try - use the wood lathe to turn a wooden adapter
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16th April 2018, 12:41 AM #8SENIOR MEMBER
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You could use a Chuck Plate shown on this website. Wood Turning Tools | Tucson | WoodTurnersWorkHolding Solutions. It mounts into the chuck, and you have a whole lot more security with it than you do with a spur center. use it for roughing and forming a tenon, and when done, use it to aid in removing the tenon........ I made the first one in 2010 from plywood, and then went to aluminum because there is a definite advantage to using adjustable screws. It's limited to using it on a 50mm set of jaws. .............. Jerry (in Tucson)USA
EDIT: I don't know why my link shows the way it does, but it does take you to my stuff. .......... Jerry
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16th April 2018, 08:35 AM #9
This is what you should be using https://www.cwsonline.com.au/shop/it...d-drill-chucks or a similar unit from another manufacturer.
Mobyturns
In An Instant Your Life CanChange Forever
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16th April 2018, 12:06 PM #10
Thanks all for you pointers. I will be purchasing a chuck steb centre... probably not the Robert Sorby one though as it's a little out of my price range, McJings has one for $35.
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16th April 2018, 12:40 PM #11
Having started with McJing's versions, then trying and buying the RS versions, I'd just save up to you can afford it.
Pat
Work is a necessary evil to be avoided. Mark Twain
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16th April 2018, 12:44 PM #12
Didn't you get a woodworm screw to go with the chuck/jaws? Looks a bit like a bolt with a round head instead of a hex. (May have a pair of flats on the sides, but still mainly round.)
If so, you'll find that the round part fits very nicely in the centre of the chuck, held firmly by the jaws. As it is designed to do... Designed for small bowls but works just as well on spindles.
Just predrill a suitable hole in the end of your blank, thread it onto the woodworm in the chuck and away you go!
- Andy Mc
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16th April 2018, 09:08 PM #13Didn't you get a woodworm screw to go with the chuck/jaws?
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