Mounting a 5C Collet Chuck on a PM-1022V/PM-1030V

[erikmannie]

I have a PM-1030V lathe. I just ordered a spare backing plate from Precision Matthews. I will now save up for an economy plain back 5C collet chuck.

My question: will the plain back 5C collet chuck bolt right on?

I am attaching a bunch of relevant pictures that I took off the internet.

 

[erikmannie]

In the third picture above, you can see three unused holes 120° apart. I would guess that you put 3 bolts through those 3 holes, and then thread those bolts into the spare backing plate.

Here are some photos that I have taken off the internet that show these 3 socket head cap screws:

 

[ptross]

An economy collet chuck may not have exactly the same mounting hole locations as your plate, so be prepared to drill new holes. Also, I expect that you'll need to machine the register on the backing plate to fit the chuck. make sure the un-cut backing plate register diameter is larger than the chuck's recess so you can turn it to fit.

 

[matthewsx]

That's actually a DIN spec backing plate, I may have one of those I bought back when I had my Bolton.

It would be a small miracle if the spacing is correct, also it needs to have the right taper.

John

 

[erikmannie]

Here is a relevant and highly detailed article about somebody who made one from scratch:

5C Collet Chuck for Lathe & Ball Bearing Spinner Key

Why use a 5C Collet Chuck for a Lathe? If you consult our Total Guide to Lathe Workholding, the advantages of a 5C Collet Chuck become clear very rapidly:

www.cnccookbook.com

Screenshot:

 

[matthewsx]

Is this it?

 

[erikmannie]

Is this it?

View attachment 388095

If that is for a 5C collet, I would like to purchase that from you. The picture that you uploaded looks like it has the register that I need.

If you don’t want to sell it, I would like to have a better picture of the PN; is it 204285? Is that a TMX or Bison adapter plate?

I Googled DIN spec, but I couldn’t come up with anything.

I haven’t received the spare backing plate from PM yet. I have two of those out in the shop for my 3- and 4-jaw chucks. I might take a look at one (of these adapters) on Sunday.

 

[erikmannie]

I decided that I am going to scavenge my Bison 5C collet chuck from my other lathe; this chuck is currently mounted on a D1-6 adapter plate.

This Bison collet chuck is not a Set-Tru; I want to have a Set-Tru collet chuck on my big lathe. As it is (on the D1-6 adapter plate & mounted on the lathe), it shows not more than .0003” TIR. That might be an “if it ain’t broke, don’t fix it situation”.

 

[matthewsx]

I’ll reach out on pm with complete dimensions if you can’t find them on the Bison website.

 

[erikmannie]

Here is a relevant video:

Screenshot: