Re: [Emc-users] Internal threading using external G76 tool path (back-tool lathe)

On 01/14/2018 11:39 AM, Gene Heskett wrote: On Sunday 14 January 2018 12:23:51 Tom Easterday wrote: On Jan 13, 2018, at 6:47 PM, andy pugh wrote: On 14 January 2018 at 00:27, wrote: But, as can be seen in the image below, the various retraction paths (in

Re: [Emc-users] Internal threading using external G76 tool path (back-tool lathe)

On Sunday 14 January 2018 12:23:51 Tom Easterday wrote: > > On Jan 13, 2018, at 6:47 PM, andy pugh wrote: > >> On 14 January 2018 at 00:27, wrote: > >> > >> But, as can be seen in the image below, the various retraction > >> paths (in blue) are not along a

Re: [Emc-users] Internal threading using external G76 tool path (back-tool lathe)

> On Jan 13, 2018, at 6:47 PM, andy pugh wrote: > >> On 14 January 2018 at 00:27, wrote: >> >> But, as can be seen in the image below, the various retraction paths (in >> blue) are not along a single driveline. Why is that? > > > I believe that this is

Re: [Emc-users] Internal threading using external G76 tool path (back-tool lathe)

On Saturday 13 January 2018 18:47:46 andy pugh wrote: > On 14 January 2018 at 00:27, wrote: > > But, as can be seen in the image below, the various retraction paths > > (in blue) are not along a single driveline. Why is that? > > I believe that this is to that every pass is the

Re: [Emc-users] Internal threading using external G76 tool path (back-tool lathe)

On Saturday 13 January 2018 17:27:39 tom-...@bgp.nu wrote: > Another question related to threading…. It is my understanding that > when cutting internal threads (or external threads) that after a > threading pass the tool should return to the driveline (“I”) in order > to retract for the next

Re: [Emc-users] Internal threading using external G76 tool path (back-tool lathe)

On Saturday 13 January 2018 13:17:19 tom-...@bgp.nu wrote: > Gene, > > > On Jan 13, 2018, at 8:18 AM, Gene Heskett > > wrote: > > > > This is confusing Tom. From the video I'd assume the enco is a slant > > bed machine. So this s/b equ to a regular lathe, with the z axis >

Re: [Emc-users] Internal threading using external G76 tool path (back-tool lathe)

On 14 January 2018 at 00:27, wrote: > But, as can be seen in the image below, the various retraction paths (in > blue) are not along a single driveline. Why is that? I believe that this is to that every pass is the same shape, so ensure that everything is the same. I am not

Re: [Emc-users] Internal threading using external G76 tool path (back-tool lathe)

Another question related to threading…. It is my understanding that when cutting internal threads (or external threads) that after a threading pass the tool should return to the driveline (“I”) in order to retract for the next pass. But, as can be seen in the image below, the various

Re: [Emc-users] Internal threading using external G76 tool path (back-tool lathe)

Gene, > On Jan 13, 2018, at 8:18 AM, Gene Heskett wrote: >> > This is confusing Tom. From the video I'd assume the enco is a slant bed > machine. So this s/b equ to a regular lathe, with the z axis rotated > some arbitrary, might not be 90 degrees CCW as viewed from the

Re: [Emc-users] Internal threading using external G76 tool path (back-tool lathe)

On Saturday 13 January 2018 00:25:26 Tom Easterday wrote: > We have been successfully using G76 for external threading on our > EmcoTurn 120P lathe for some time. We haven’t yet used it for internal > boring or threading. We have an application to make some internal Acme > threads in a cylinder.

[Emc-users] Internal threading using external G76 tool path (back-tool lathe)

We have been successfully using G76 for external threading on our EmcoTurn 120P lathe for some time. We haven’t yet used it for internal boring or threading. We have an application to make some internal Acme threads in a cylinder. We have a right-handed solid carbide Acme (8 TPI) threading