[Emc-users] Upset old fart

2016-09-01 Thread Gene Heskett
Greetings; I decided to remove the saddle & see what I could come up with, with the idea of making the screw in boss the crossfeed handle into the thrust anchor, with room for the nuts etc to get it clamped onto the X drive screw. I hit paydirt on that in that I now have removed about an oz

Re: [Emc-users] Can't figure out homing on gantry

2016-09-01 Thread Gene Heskett
On Thursday 01 September 2016 01:17:40 dan...@austin.rr.com wrote: > Gene Heskett wrote: > > On Wednesday 31 August 2016 20:49:22 dan...@austin.rr.com wrote: > > > I'm using the LinuxCNC 2.7.4 with the realtime support. > > > > > > Does the "2.8 pre" have the same RT

Re: [Emc-users] What does "CNC" really mean?

2016-09-01 Thread Dave Cole
Turret lathes were all the rage back in WWII. Do a Google search for Turret lathe WWII and you will see what I mean. I have a old Gisholt turret lathe which is 1940's vintage and there were an incredible number of attachments and tooling made for that lathe for various jobs. The lathes used

Re: [Emc-users] What does "CNC" really mean?

2016-09-01 Thread Andy Pugh
> On 1 Sep 2016, at 06:42, Chris Albertson wrote: > > In the 40's I wonder how many of the parts were done on automated > tools. See, for example this manual copy-miller. http://www.lathes.co.uk/wade-bench-profiler/

Re: [Emc-users] Can't figure out homing on gantry

2016-09-01 Thread Andy Pugh
> On 1 Sep 2016, at 08:17, wrote: > > Is "2.8 pre" stable enough to consider reliable? I would use it myself (and do) but I wouldn't sell a system with it. I haven't seen any problems in several years of using various JA flavours. With the

Re: [Emc-users] Extended g33 question

2016-09-01 Thread Andy Pugh
> On 1 Sep 2016, at 01:13, Gene Heskett wrote: > > Assumeing I have the tapered thread I want, can I continue that thread > without the taper if I don't change the Z resting point while its You could use G33 again rather than G76 to be completely sure.

Re: [Emc-users] Can't figure out homing on gantry

2016-09-01 Thread dannym
dan...@austin.rr.com wrote: > > Andy Pugh wrote: > > > > > > > On 1 Sep 2016, at 08:17, > > > wrote: > > > > > > Is "2.8 pre" stable enough to consider reliable? > > > > I would use it myself (and do) but I

Re: [Emc-users] Upset old fart

2016-09-01 Thread Jon Elson
On 09/01/2016 11:45 PM, Andy Pugh wrote: > >> On 2 Sep 2016, at 01:07, Gene Heskett wrote: >> >> one problem, the SOB is made out of aluminum! >> >> So, what the heck do I do about that? > How about using it? It appears to have lasted this long and the lathe saddle > gib

Re: [Emc-users] Upset old fart

2016-09-01 Thread Andy Pugh
> On 2 Sep 2016, at 01:07, Gene Heskett wrote: > > one problem, the SOB is made out of aluminum! > > So, what the heck do I do about that? How about using it? It appears to have lasted this long and the lathe saddle gib doesn't work very hard. Maybe it is original

Re: [Emc-users] Upset old fart

2016-09-01 Thread Andy Pugh
> On 2 Sep 2016, at 01:07, Gene Heskett wrote: > > Also, is anyone selling way wipers? These are worn off about 20 thou > short of sitting on the ways _& actually wiping. I have seen 3D printed ones for Colchester lathes on eBay. I anticipate making some for my

Re: [Emc-users] summing Z axes?

2016-09-01 Thread Andy Pugh
> On 2 Sep 2016, at 07:56, Ken Johnson wrote: > > Is it possible to sum 2 Z-axes in linux-cnc Yes, but how you do it rather depends on what behavior you want. Are both axes motorized? --

[Emc-users] summing Z axes?

2016-09-01 Thread Ken Johnson
Is it possible to sum 2 Z-axes in linux-cnc? Reason for the question is my mill has both a knee and quill, and I would like to put a dro on both and have have linuxcnc sum them so the reading on-sceen represents the distance between tool and job no matter which of the 2 I (or later, the software)

Re: [Emc-users] Info needed.

2016-09-01 Thread Kenneth Lerman
Hi Gene, 1 -- I don't think they have bias magnets in them. 2 -- I don't think you will be happy with the repeatability as a limit switch. Also, the smallest bit of swarf that sticks to the magnet will cause you problems. I haven't tried it, but I wouldn't be optimistic. Regards, Ken On Tue,

Re: [Emc-users] Info needed.

2016-09-01 Thread Gene Heskett
On Thursday 01 September 2016 09:24:48 Kenneth Lerman wrote: > Hi Gene, > > 1 -- I don't think they have bias magnets in them. > 2 -- I don't think you will be happy with the repeatability as a limit > switch. Also, the smallest bit of swarf that sticks to the magnet will > cause you problems. >

Re: [Emc-users] Extended g33 question

2016-09-01 Thread Gene Heskett
On Thursday 01 September 2016 05:33:58 Andy Pugh wrote: > > On 1 Sep 2016, at 01:13, Gene Heskett wrote: > > > > Assumeing I have the tapered thread I want, can I continue that > > thread without the taper if I don't change the Z resting point while > > its > > You could

Re: [Emc-users] Can't figure out homing on gantry

2016-09-01 Thread dannym
Andy Pugh wrote: > > > > On 1 Sep 2016, at 08:17, > > wrote: > > > > Is "2.8 pre" stable enough to consider reliable? > > I would use it myself (and do) but I wouldn't sell a system with it. > > I haven't seen any