Skand 6" Chuck Questions

That's why the 5c is for production , it's quick to operate. But the collet system isn't really set up to handle the stress that can come from a 6" chuck. The chuck should be locked up tite with the spindle , the collet lock up is run in a shallow taper with a very small key to drive . Look at the set up for the chuck mount it's very substantial compared to the collet. collets are great for the sizes they come in , but larger stock is for chucks . Just trying to help take it as you like you'll learn either the easy way or the hard.
 
So would I look for a L00 backup plate to mount my 6" chuck on? How would I know what hole patterns on the chuck would match to the hole patterns on the backup plate?

Thanks

Joe
 
Joe Pitz said:
Thanks Silverbullet,

Is it then common to switch between L00 and the 5C collet system. I like the idea to use the 5C for stock up to 1" and then for larger jobs switch to the L00 backing plate. Would that be hard to switch back and forth?

Is there some book that goes into details about how the backplates and different systems around work and what is available for the lathes. Since being a newbie, this is all very new to me. Normally when picking up new technology I locate the technical material and learn from that. But I have a feeling that this old technology is learn through experience.

Thanks

Joe
Click to expand...
To switch over, you will need to remove the 5C drawbar from the back. I can't tell from your other pictures if this is a lever or a handwheel setup. If it is a lever setup, there should be a bracket on the back of the lathe that attaches the handle link. Just remove one of the bolts that act as a pivot for the link, and the whole tube should slide out of the back of the lathe. After that, you would unscrew the collar with the holes on the front of the spindle. You will need a large spanner wrench for this. If your lathe didn't come with one, a Martin 466 will work well (that is what I use for mine)
P1070568.JPG

There is an aluminum collar called a spindle nose protector that will push out the actual 5C adapter in the spindle nose. The spindle on a 6300 actually has two tapers. There is an inner taper that the 5C collet sits in and an outer taper for the L00. Here is a picture of my spindle with the chuck removed:
P1070229.JPG
Finally, here is a picture of the L00 backing plate on my 4 jaw chuck:
P1070282.JPG
This shows the large theread, the taper and the keyway.

A good source of information on lathes is http://www.lathes.co.uk/clausing/page2.html
That site has a lot of information on all kinds of lathes and also some of the different spindle nose configurations.

Hope this helps.
 
Joe Pitz said:
There is a LOO adapter for a 6" chuck on ebay for $79.00, How would I mount my chuck to this adapter?

http://www.ebay.com/itm/L-00-Type-A...405?pt=LH_DefaultDomain_2&hash=item25a157a055

Thanks
Joe
Click to expand...
Most backing plates will be semi-finished. In order to most accurately mount the chuck, one usually mounts the backing plate on the spindle and then machines in a step that matches the recess in the back of your chuck. After that, one marks out the correct hole pattern and then drills it to fit.

This one will most likely work, but I would contact the seller first to get a dimensioned view. There is a couple of dimensions listed in the description, but I have no Idea what exactly they refer to.
 
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