donald_clement at yahoo.com
Fri Oct 2 10:22:20 JST 2009
Hardinge HLV and Monarch 10 EE lathes used to be on my wish list. Not any more. Even though both lathes are ultra-precision tool room lathes they are still manual lathes and repetitive operations such as threading have to be done by hand. Using a manual lathe even for a small production runs makes one feels too much like Fritz Lang's Freder. http://i72.photobucket.com/albums/i163/miltons_stuff/frederClock.jpg
I am considering the Haas TL1 CNC lathe.
But for now most of my threading is done on my small CNC mill using thread milling technique. Here is an example of thread milling an internal M102-1mm pitch thread on my CNC mill. Notice thread milling is done quickly with only a single pass. Compare doing this on a manual lathe.
Running Springs, California
--- On Wed, 9/30/09, Jay LeBlanc <jaleblan at dakotacom.net> wrote:
> From: Jay LeBlanc <jaleblan at dakotacom.net>
> Subject: Re: [ATM] Threading
> To: atm at atmlist.net
> Date: Wednesday, September 30, 2009, 5:57 PM
> James P Crombie wrote:
> > I guess I will not mention being able to thread
> 1/4-40 parts at 1000 rpm on a Hardinge tool room lathe. :-)
> > I miss that lathe :-( It has an auto disengage
> at the end of the thread and and lever operated top slide to
> disengage the tool without moving the cross slide.
> Well, the 9x20 Harbor Freight is so wonderfully crude it is
> amazing it works,
> the Hardinge machinery are built like jewels.
> ATM mailing list http://www.atmlist.net/
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