SBL ER40 collet chuck

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SBL ER40 collet chuck

aametalmaster Offline

MTLMSTR

Posts: 410
Threads: 77
Joined: Mar 2012
Location: Salem, Ohio

03-21-2012, 08:51 PM

I made this 5-6 years ago so bear with me if you have seen it before. I am making another body to fit my 1941 SBL heavy 10 and my 1919 SBL 15" which has the same spindle thread. It was pretty easy to make it just took some figuring out. Lets see i have ablock of steel in my left hand and a collet in my right and i need them to fit togther. Simple enough...Bob

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7 boring nose hole for threading.jpg (Size: 13.16 KB / Downloads: 98)
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2 chuck body threaded for spindle.jpg (Size: 27.17 KB / Downloads: 95)
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4 trying collet.jpg (Size: 17.28 KB / Downloads: 95)
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9 nose threaded.jpg (Size: 17.27 KB / Downloads: 94)
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12 after shaping to suit.jpg (Size: 27.58 KB / Downloads: 95)
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1 chuck body.jpg (Size: 17.28 KB / Downloads: 95)
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3 inside taper cut.jpg (Size: 15.78 KB / Downloads: 95)
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6 threaded body and taper.jpg (Size: 19.54 KB / Downloads: 95)
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10 collet body screwed inside nose.jpg (Size: 19.42 KB / Downloads: 96)
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11 done but needs shaping.jpg (Size: 17.67 KB / Downloads: 96)
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5 threading body for nose cap.jpg (Size: 18.83 KB / Downloads: 95)
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8 nose taper cut and hole bored.jpg (Size: 14.94 KB / Downloads: 96)

Bob Wright
Metal Master Fab
Salem Ohio
Birthplace of the Silver and Deming drill bit.
5 Lathes, SBL Shaper, Lewis Mill, 7 drill presses, 5 welders...

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DaveH

Child of the 60's

Posts: 4,513
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Joined: Feb 2012
Location: Kempton Park. South Africa

03-22-2012, 10:54 AM

Bob,

That is a very neat looking ER collet holder, I see you made your own closer nut as well. Drool

I cheated there a bit and bought a closer nut.

Nicely posted

DaveH

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EdK

Whipping Boy

Posts: 8,859
Threads: 319
Joined: Feb 2012
Location: Arizona/Minnesota

03-22-2012, 12:03 PM

Bob,

Can you show us a picture of that squarish looking boring bar in picture number 7?

Nice collet chuck you made. What did you end up with for TIR?

Thanks,
Ed

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doubleboost Offline

Super Moderator

Posts: 1,459
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Joined: Feb 2012
Location: Northern England

03-22-2012, 03:14 PM

Hi
Bob
Nicely shown
I made a ER 32 one and use it all the time now
John

http://www.youtube.com/user/doubleboost

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aametalmaster Offline

MTLMSTR

Posts: 410
Threads: 77
Joined: Mar 2012
Location: Salem, Ohio

03-22-2012, 07:20 PM

(03-22-2012, 12:03 PM)EdAK Wrote: Bob,

Can you show us a picture of that squarish looking boring bar in picture number 7?

Nice collet chuck you made. What did you end up with for TIR?

Thanks,
Ed

Runout is maybe a few thou which is better than my 3 jaw chuck.
Here is the boring bar in different stages. It was just a piece of 1/2"x1 HR flat that fits in a special wide slot on my square block toolpost (last pic) And don't let anyone kid you that a square peg won't fit in a round hole because it fits just fine. And a small setscrew in the end to hold the bit. It really will hog the metal in backgear a good 3/16" cut per side...Bob

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