Thread: GPW Gen 3 110mm chuck - first impressions

Ern been that a 1mm over size hole is now drilled what's the play like when reverting the jaws to the other chuck ??
I know the tapper of the bolt head should centre it but still is it a concern??
Would you use a sleave??

Originally Posted by rsser

I'm using VM shark jaws on it and they fit fine (with the jaw holes drilled out a mm).

Ern,

Does drilling out the holes affect the use of the jaws on Vicmarc chucks - ie are they still held correctly in place by the head so the hole size doesn't matter?

It's fine. Being countersunk heads they still centre in the 'socket' as before. They sit marginally deeper than before.

Neil the main thing with any of these type of screws is to make sure the hex is cleaned out before trying to put the key in because if you do not get full purchase you will strip out any size screw.

Yep.

After the job I go over the chuck with an old tooth brush and remove as much dust as I can.

Originally Posted by rsser

Yep.

After the job I go over the chuck with an old tooth brush and remove as much dust as I can.

Yet another justification for having the air line with a dusting nozzle within reach of the lathe

Originally Posted by TTIT

Yet another justification for having the air line with a dusting nozzle within reach of the lathe

Exactly

Originally Posted by rsser

Neil, when I'm in a nuts and bolts place I usually pick up a set of spares rather than worry about chewing the sockets out.

Yes, Ern, I should have done that some time ago as it has been on my to-do list for a long time. It's a miracle I still have all of my original screws and in working order, but reckon I'm tempting fate by not having spares on hand....

Originally Posted by Jim Carroll

Neil the main thing with any of these type of screws is to make sure the hex is cleaned out before trying to put the key in because if you do not get full purchase you will strip out any size screw.

Good point, Jim.

Neil

Hi NeilS.
I had your problem of loosing Screws in the Shavings or Saw Dust.
Found one of those Extendable, Rods with a Powerful Dot Magnet on the end, $5. A bit like a car aerial. It will pick up a fair sized spanner or pliers off the floor.
It is amazing what they find.
A small trick, is to wrap a bit of Plastic Bag or the like, & put a small rubber band around the Plastic.
In this way, there are bound to be some Steel Grains around the Lathe somewhere. So to be rid of them you simply remove the Plastic every now & again.
Beats trying to remove them from the bare Magnet.
Regards,
issatree.

Originally Posted by issatree

Hi NeilS.
I had your problem of loosing Screws in the Shavings or Saw Dust.
Found one of those Extendable, Rods with a Powerful Dot Magnet on the end, $5. A bit like a car aerial. It will pick up a fair sized spanner or pliers off the floor.
It is amazing what they find.
A small trick, is to wrap a bit of Plastic Bag or the like, & put a small rubber band around the Plastic.
In this way, there are bound to be some Steel Grains around the Lathe somewhere. So to be rid of them you simply remove the Plastic every now & again.
Beats trying to remove them from the bare Magnet.
Regards,
issatree.

Another good suggestion there Lewis.

Thanks

Neil

I'll ask again Ern is here a chance to see the set up for using the indexing on your lathe with the GPW chuck

Sorry Wheelin: just found your q.

The chuck back has two rows of holes so for indexing to work a retractable pin would need to be retrofitted to the lathe. Mine has inbuilt indexing and I don't need the 2 scales anyway.

Update; the chuck has mid-size VM Shark jaws permanently fitted and has been working fine. There's minor failure of finish in the body around those sockets.

thanks Ern ..............when out at H&F's yesterday looking at their similar chucks the same question was raised between a few of us man different lathes of course and in agreement the index feature on the backs of lathes nessitates an individual indexer mounting. This I already knew when I possed the question to you I was under the impression you had set it up to use the index syustem on the back of the chuck.

The other question was of slop due to the hole size change.??

Ray

Think I covered your last q above Wheelin.

No probs.

In the OP I mentioned tangential run-out. My bad; it was radial run-out that I measured.