Thanks: 0
Needs Pictures: 0
Picture(s) thanks: 0
Results 16 to 27 of 27
Thread: Lorch LAS Lathe
-
16th Oct 2013, 11:50 AM #16Most Valued Member
- Join Date
- Jul 2010
- Location
- Melbourne
- Posts
- 9,088
Are we sure its not just held on with locking compound?
Its not like it could go far even if it was loose.(though granted that would be a little rough )
Stuart
-
16th Oct 2013, 11:58 AM #17Golden Member
- Join Date
- Oct 2012
- Location
- Australia
- Posts
- 621
Maybe it is, it seem to be on there pretty solid, but I would guess at a press fit, being high end german product.
No idea, as you would lose some working length each step down?
Damn!, my thoughts exactly, I was hoping for anther take on the situation.
-
16th Oct 2013, 12:43 PM #18Most Valued Member
- Join Date
- Jul 2010
- Location
- Melbourne
- Posts
- 9,088
Well yes a press fit, but there are press fits and then there are PRESS fits lol
What I was thinking was. They have to be for holding the inside of something right? So that would mean the collet needed to move out to clamp the work, unlike "normal" collets that move in to clamp. So how does tightening the draw bar move a collet out?
Ok I've done some googling, they seem to be call ring or step chucks.
Looking at this picture it would seem there must be either second part or use the spindle nose to supply the external taper to "open" the collect to close it
Stuart
-
16th Oct 2013, 01:09 PM #19
I would imagine they work like a small hole gauge, the threads are continued onto a shaft that flares out at the end. When the db is tightened up it pulls the collet into the seat and then starts to draw the flared bit into a matching taper expanding the rings......could be way off though!
Ew1915 17"x50" LeBlond heavy duty Lathe, 24" Queen city shaper, 1970's G Vernier FV.3.TO Universal Mill, 1958 Blohm HFS 6 surface grinder, 1942 Rivett 715 Lathe, 14"x40" Antrac Lathe, Startrite H225 Bandsaw, 1949 Hercus Camelback Drill press, 1947 Holbrook C10 Lathe.
-
16th Oct 2013, 01:37 PM #20Golden Member
- Join Date
- Oct 2012
- Location
- Australia
- Posts
- 621
-
16th Oct 2013, 03:33 PM #21Golden Member
- Join Date
- Oct 2012
- Location
- Australia
- Posts
- 621
For those people that are interested here is current listing for a Lorch LAS atm. I'm sure the seller won't mind if I post their photos here. This one seem much more complete than my brothers but it also more than he paid. But it is nice to see one with most of the accessories for comparison.
708009846_o.jpg708009985_o.jpg708010038_o.jpg708010046_o.jpg708010053_o.jpg708010058_o.jpg708010065_o.jpg708010071_o.jpg708010077_o.jpg708010085_o.jpg708010090_o.jpg708009981_o.jpg708009972_o.jpg708009855_o.jpg708009865_o.jpg708009877_o.jpg708009890_o.jpg708009895_o.jpg708009918_o.jpg708009924_o.jpg708009947_o.jpg708009957_o.jpg708009965_o.jpg708010114_o.jpg
-
16th Oct 2013, 05:49 PM #22Philomath in training
- Join Date
- Oct 2011
- Location
- Norwood-ish, Adelaide
- Age
- 59
- Posts
- 6,540
We have a Weiler at work with these step chucks (funnily enough, I had to tell the fitters how they were used - don't seem to cover much of this manual milling stuff in trades school any more)
The hollow ones work like a normal 5C but the external ones have a conical sleeve that they pull against that spreads the cone. I can get a photo tomorrow if there is interest.
Michael
-
16th Oct 2013, 07:26 PM #23Golden Member
- Join Date
- Oct 2012
- Location
- Australia
- Posts
- 621
-
17th Oct 2013, 10:08 AM #24Golden Member
- Join Date
- Oct 2012
- Location
- Australia
- Posts
- 621
-
17th Oct 2013, 11:26 AM #25
Josh,
probably the same principle as my 6 & 8mm watch lathes...
Draw-bar pulls them over a taper, and opens them up.
I use this one often, especially to make bevelled wedding rings (like the platinum one from last week, in the 3rd picture below)
Regards,
Peter
-
17th Oct 2013, 01:10 PM #26Philomath in training
- Join Date
- Oct 2011
- Location
- Norwood-ish, Adelaide
- Age
- 59
- Posts
- 6,540
Peter got there first, but IMG_0043.JPGIMG_0044.JPGIMG_0045.JPG
-
17th Oct 2013, 01:59 PM #27Most Valued Member
- Join Date
- Jul 2010
- Location
- Melbourne
- Posts
- 9,088
Thank you gentleman.
Stuart
They need a "thank you" thingy like the "like" thingy.
Similar Threads
-
any one recognize this Lathe ? look like quality lathe but no name pictures inside
By thorens in forum METALWORK GENERALReplies: 2Last Post: 15th Jul 2013, 01:24 AM -
Buying a lathe (Old massive Lathe, or New small C6 Lathe)
By Ch4iS in forum METALWORK GENERALReplies: 5Last Post: 25th Mar 2009, 12:19 PM