Author Topic: Making a chuck adapter for a 6-jaw chuck  (Read 327 times)

4GSR

Making a chuck adapter for a 6-jaw chuck
« on: August 30, 2018, 09:47:34 PM »
I recently picked up a 6" 6-jaw chuck in nice condition.  Needed a good cleaning which I did and now working on making a chuck adapter to adapt the chuck to my 9" South Bend lathe.  I bought a 6" chuck adapter from The Little Machine Shop several years ago and never did use it, now it's getting used. Here's a couple pictures of what I have done so far.  All the lathe work is done ready to go to the mill for all of the holes to be drilled and tapped.
« Last Edit: September 01, 2018, 06:50:58 PM by 4GSR »
Ken

Bamban

Re: Making a chuck adapter for a 6-jaw chyck
« Reply #1 on: August 30, 2018, 11:34:28 PM »
Looks good. Can't positively see in the pictures, but I think I can see the set thru screws. Is my observation correct?
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4GSR

Re: Making a chuck adapter for a 6-jaw chyck
« Reply #2 on: August 31, 2018, 07:03:50 AM »
Yes, that is correct.
Ken

pep

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Re: Making a chuck adapter for a 6-jaw chyck
« Reply #3 on: August 31, 2018, 07:27:46 AM »
 Nice 6 way, would like to own one, reading indicates they are mainly. To prevent marking a work piece or holding thin wall tubing.

Read nothing in regards to the accuracy being any tighter than a 3 way..... that made my wallet happy.  LOL
 
Thanks for the reply 4GSR, after I posted the the question. Decided to investigate my own question further. Thus the post flip.. You quick man ......LOL

Tks again ...

Pep

I recently picked up a 6" 6-jaw chuck in nice condition. 
« Last Edit: August 31, 2018, 07:45:46 AM by pep »

chips and more

Re: Making a chuck adapter for a 6-jaw chyck
« Reply #4 on: August 31, 2018, 08:14:11 AM »
Loooookin goooood! I remember having a hard time finding a L00 backplate for a set-tru chuck. That kind of chuck needs a boss to push on with those 4 adjusting screws. The Little Machine Shop was the only source that I could find at that time with an unfinished extra thick backplate…Dave

Ulma Doctor

Re: Making a chuck adapter for a 6-jaw chyck
« Reply #5 on: September 01, 2018, 10:36:33 AM »
Nice work Ken!  :D
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MIKE WALTON

4GSR

Re: Making a chuck adapter for a 6-jaw chyck
« Reply #6 on: September 01, 2018, 10:40:16 AM »
Nice 6 way, would like to own one, reading indicates they are mainly. To prevent marking a work piece or holding thin wall tubing.

Read nothing in regards to the accuracy being any tighter than a 3 way..... that made my wallet happy.  LOL
 
Thanks for the reply 4GSR, after I posted the the question. Decided to investigate my own question further. Thus the post flip.. You quick man ......LOL

Tks again ...

Yeah, the 6-jaw is no more accurate than a 3-jaw.  Just more holding power in a sense and definitely for holding thin wall parts.
Pep

I recently picked up a 6" 6-jaw chuck in nice condition. 
Ken

kvt85

Re: Making a chuck adapter for a 6-jaw chyck
« Reply #7 on: September 01, 2018, 06:39:13 PM »
Ok  Ken
question in one pic it looks like it has the hub set up for the set true on it then in another pic it has a recess where the set true hub should be.   Is that a two part setup for the set true.   If so That may be what I need to do for one of mine.   

Ken in SA
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4GSR

Re: Making a chuck adapter for a 6-jaw chyck
« Reply #8 on: September 01, 2018, 06:46:04 PM »
Ken,

That is a two part chuck adapter.  See the picture below.
Ken

4GSR

Re: Making a chuck adapter for a 6-jaw chyck
« Reply #9 on: September 01, 2018, 06:49:06 PM »
Here's the chuck almost fully mounted.  The only socket head cap screws I have available are 3-1/2" long, a 1/2" too long.  So I'm going to set up and cut off 1/2" on three to finish up this project.
Ken

4GSR

Re: Making a chuck adapter for a 6-jaw chuck
« Reply #10 on: September 02, 2018, 01:02:01 PM »
Have my test bar chucked up and have the T.I.R. within 0.0005" at the chuck and about 0.0015-0.0020" out on the end, which is sticking out about 10".  Good enough with the girls I go out with.

Ken
Ken

Carpenter84

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Re: Making a chuck adapter for a 6-jaw chuck
« Reply #11 on: September 02, 2018, 01:11:31 PM »
Good enough with the girls I go out with.

Ken


An AvE follower I see.
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Re: Making a chuck adapter for a 6-jaw chuck
« Reply #12 on: September 02, 2018, 01:25:04 PM »
Have my test bar chucked up and have the T.I.R. within 0.0005" at the chuck and about 0.0015-0.0020" out on the end, which is sticking out about 10".  Good enough with the girls I go out with.

Ken


You told me at one point what that test bar was, or told me what to get. I can't find that post and i don't remember what it was...
Shawn

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Ko Lee 6x12 surface grinder,
Airco dip/stick 160 welder,
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Bamban

Re: Making a chuck adapter for a 6-jaw chuck
« Reply #13 on: September 02, 2018, 01:32:45 PM »
Have my test bar chucked up and have the T.I.R. within 0.0005" at the chuck and about 0.0015-0.0020" out on the end, which is sticking out about 10".  Good enough with the girls I go out with.

Ken


You told me at one point what that test bar was, or told me what to get. I can't find that post and i don't remember what it was...

I am not Ken, but these are good, Thompson linear shaft. I use them, look at the spec.

https://www.amazon.com/Thomson-QS-12-MM-500/dp/B00TSGMR58/ref=mp_s_a_1_1?ie=UTF8&qid=1535912833&sr=8-1&pi=AC_SX236_SY340_FMwebp_QL65&keywords=thomson%2Blinear%2Bshaft&dpPl=1&dpID=41-Gyg6wueL&ref=plSrch&th=1&psc=1
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Re: Making a chuck adapter for a 6-jaw chuck
« Reply #14 on: September 02, 2018, 02:03:46 PM »
Right, shaft material. I think that's what he mentioned. And I was going to ask my metal supplier if they had any good, true shaft material in drops.

I do know they have shaft material there, I've seen lots of it in the plastic protector sleeves. I'll shoot an email off now so I don't forget and I'm sure I'll hear back Tuesday.
Shawn

First 9x42 column mill,
Enterprise 10x28 lathe,
Ko Lee 6x12 surface grinder,
Airco dip/stick 160 welder,
Fully stocked wood shop.