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View Full Version : lathe spindle mounted collet chuck - "Projects In Metal"



andy_b
09-10-2005, 06:20 PM
when i was at my friend's place perusing his projects and assorted junk he showed me a funky collet chuck he made. it is made of three pieces and is about 5" diameter. it threads on the spindle and the nose of this chuck is tapered to match the collets (maybe they were 5C???).

the back piece and nose piece are the same diameter and bolt together. the back piece has the threading to fit on the spindle, and the nose has the mating taper for the collets. the third piece is sandwiched between the other two and is free to rotate. it is threaded to fit the collets to draw them into the chuck. the edges of it are knurled and have holes to insert a rod to tighten the collet. this piece is maybe 3.5" diameter and 1/2" thick.

my friend said he got the plans from a magazine. he said he thought the mag was "Projects In Metal". my searching shows that it is now known as our very own Machinst's Workshop. would anyone happen to know what back issue this may be and how i could purchase a copy? or, is there a book with this project in it?

thanks.

andy b.

PHiers
09-10-2005, 07:19 PM
Andy, I don't know if it is the one you are looking for, but the April 1990 issue of Projects in Metal had one on page 12. I found this using the search on the main page.

http://www.homeshopmachinist.net/

You can search the index for all of their magazines here. Hope that helps.


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Paul in NE Ohio

Maker
09-10-2005, 08:12 PM
Andy, I think this is it. Here is the cover.

http://img.photobucket.com/albums/v668/makerofcoolthings/HSMcover.jpg

This is "The Home Shop Machinist" Jan/Feb 2005 Pt 1, Mar/Apr 2005 Pt 2

HTH

Alex

sch
09-10-2005, 08:19 PM
A more likely version is the article by DE Johnson in the Jan/Feb '97, all in one issue!
The starting point was a 3"Dx6"L cylinder of grey iron which is milled, bored and turned to make the collet holder with a back plate of the same diameter that fits it to the lathe, a screw thread in this case. As Projects book 8 has not been published (Projects Bk 7 was made available in the past few yrs and stops at Nov/Dec'96) and they are 9 yrs behind.... If you want a xerox I could supply for sase query
sch1943atgmaildotcom It is 10pages and the photo quality of xerox can be variable. Put 5c closer in the title.
Steve

andy_b
09-10-2005, 09:19 PM
thanks for the replies.

Paul,

i did try a search on the homepage, and i hate to say it, but the search function sucks. sure, it give me a list of 20 articles containing the word "collet chuck", but i have no idea which one it is without a photo of the chuck i am trying to build. maybe they could add this feature to the search???


Alex,

the chucks in that cover photo look way more complex than the one my friend made. the one you posted looks like it has some weird planetary gear arrangement.


Steve,

i believe you got the correct one. is there any way you can send me a scan of a photo of the chuck in the article? if it is the one i'm thining of, i will purchase the complete back issue. if it isn't available from Village Press then i will keep watching ebay. i'd rather get it from Village Press if i can as i try to support them.

andy b.

Dangf
09-10-2005, 09:59 PM
Look here to see if it is the right one. It is in Metalworking One but this guy is real slow on shipping.
http://tinyurl.com/a8974

Dan

Randy
09-10-2005, 10:05 PM
Andy,
Your description sounds like a project in one of the very first issues of Projects in Metal from the mid-80s. If I can find it I could scan and e-mail you the article, or maybe just send you the whole magazine. I'll look for it tonight.

Edit: I just looked at Dan's link. Pat Loop's design is the one I'm thinking of.

[This message has been edited by Randy (edited 09-10-2005).]

andy_b
09-10-2005, 10:57 PM
Randy,

YES!!!! the "Make Your Own Collet Chuck" by Pat Loop is the one! i don't know if the DE Johnson one is similar, but the three pieces shown in the Pat Loop one are exactly what my friend has. like is said, i'd gladly purchase a back issue of this if Village Press has it, or someone can come up with it. any idea what issue it was in?

andy b.

George Barnes
09-10-2005, 11:15 PM
I think that this is what you are looking for, from your description.

http://img.photobucket.com/albums/v707/gbarnes/ColletChuck.jpg

There are 4 pages to the article and the pages are a little larger than normal.

The issue is Volume 1 No. 3 - June 1988.

Hope this helps.

Dangf
09-10-2005, 11:27 PM
Don't see that issue on ebay right now but the Metalworking One Book can be purchased from Village Press or from that guy but like I said he sells stuff he doesn't have in stock so you have to wait for about a month or atleast I did.

Dan

DaveS
09-11-2005, 12:26 AM
Andy; Metal Lathe Accessories, an advertiser in HSM carries that same collet chuck in their line of casting kits. I bought one a few years ago and it has given me very good service. Can't remember what it cost, but it wasn't very much. There was an article in HSM earlier this year detailing the machining of this kit. Dave

IOWOLF
09-11-2005, 06:47 AM
The one I made for the Atlas used a drawbar, and after you made the threads you threaded it onto the spindle and did everything on the spindle,Excelelant TIR.

I have the Mid '90s HSM or PIM magazine somewhere.

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The tame Wolf !

Tinker2
09-11-2005, 05:19 PM
Something like this only bigger
http://www.sherline.com/images/1164pic.jpg

IOWOLF
09-11-2005, 05:54 PM
Volume 6 #6 P.I.M. Atlas spindle nose collet holder.

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The tame Wolf !

Philo_K
09-11-2005, 09:47 PM
Here's a pretty nice one.


http://www.metalworking.com/dropbox/collet_chuck.pdf

andy_b
09-11-2005, 10:39 PM
THANKS ALL FOR THE REPLIES AND EMAILS!!!!!

looks like i have a winter project. now to start scavenging supplies.

andy b.

brnoczech
09-13-2005, 03:19 PM
The Home Shop Machinist November/December 2004 issue has the article "Machining the MLA Collet Chuck Kit". The picutres show that the collet chuck has the name "The Loop Collet" cast in it. The article says that the kit is available from Metal Lathe Accessories at web site www.sc-c.com/metallathe (http://www.sc-c.com/metallathe)