Re: [Emc-users] understanding tool table and touch off for a lathe

2015-06-25 Thread Gene Heskett
On Thursday 25 June 2015 18:40:13 John Thornton wrote: > Dunno why you need a couple of hundred tool holders, my CHNC only has > an 8 station turret and I seldom have to change tools and when I do it > only takes a few seconds to get Z set... X takes a bit more as you > know. > > JT I guess I didn

Re: [Emc-users] understanding tool table and touch off for a lathe

2015-06-25 Thread John Thornton
Dunno why you need a couple of hundred tool holders, my CHNC only has an 8 station turret and I seldom have to change tools and when I do it only takes a few seconds to get Z set... X takes a bit more as you know. JT On 6/25/2015 4:22 PM, Gene Heskett wrote: > On Thursday 25 June 2015 14:47:33

Re: [Emc-users] understanding tool table and touch off for a lathe

2015-06-25 Thread Gene Heskett
On Thursday 25 June 2015 14:47:33 John Thornton wrote: > I have a little bit of info here: > > http://gnipsel.com/linuxcnc/g-code/lathe02.html > > JT And that makes at least as much sense as anything else I've read. But to really make use of it, I need to acquire another couple hundred in tool

Re: [Emc-users] understanding tool table and touch off for a lathe

2015-06-25 Thread John Thornton
There is several ways including the Machine Menu http://linuxcnc.org/docs/2.7/html/gui/axis.html#_menu_items and using MDI http://linuxcnc.org/docs/2.7/html/common/User_Concepts.html#_when_you_8217_re_lost Or you can just move to an unused coordinate system when you touch off Z to a fixture.

Re: [Emc-users] understanding tool table and touch off for a lathe

2015-06-25 Thread John Thornton
Each tool has it's own X offset stored in the tool table and they are related to the center of the spindle. Only Z needs to touch off to material. So your G54 offset is for Z only. JT On 6/25/2015 8:04 AM, Tom Easterday wrote: > How do cancel any G54 offsets? Also, I understand that X is based

Re: [Emc-users] understanding tool table and touch off for a lathe

2015-06-25 Thread John Thornton
I have a little bit of info here: http://gnipsel.com/linuxcnc/g-code/lathe02.html JT On 6/25/2015 9:45 AM, Gene Heskett wrote: > > On Thursday 25 June 2015 06:42:55 John Thornton wrote: >> On my lathe I only touch off to fixture the Z axis and use the spindle >> face as my fixture. X is always t

Re: [Emc-users] understanding tool table and touch off for a lathe

2015-06-25 Thread Gene Heskett
On Thursday 25 June 2015 06:42:55 John Thornton wrote: > On my lathe I only touch off to fixture the Z axis and use the spindle > face as my fixture. X is always touched off to the material in the > tool table. I don't use the touch off buttons because I've added some > PyVCP buttons to do the to

Re: [Emc-users] understanding tool table and touch off for a lathe

2015-06-25 Thread Tom Easterday
How do cancel any G54 offsets? Also, I understand that X is based on the center of the spindle but you still need to know when you touch (or cut) the workpiece the relative difference between the tool that did the cut and all the others. Some how you have to get the X offsets from a master too

Re: [Emc-users] understanding tool table and touch off for a lathe

2015-06-25 Thread John Thornton
It looks like the tool table touch off has been split from the coordinate system touch off with the added button in 2.7. One thing to remember is to not have any G54 offsets in effect when your touching off tool to the tool table as they will get added to your tool touch off and that is a bad t

Re: [Emc-users] understanding tool table and touch off for a lathe

2015-06-25 Thread John Thornton
On my lathe I only touch off to fixture the Z axis and use the spindle face as my fixture. X is always touched off to the material in the tool table. I don't use the touch off buttons because I've added some PyVCP buttons to do the touch offs. Touch off to spindle face MDI_COMMAND = G10 L11 P#5

Re: [Emc-users] understanding tool table and touch off for a lathe

2015-06-24 Thread Pete Matos
I honestly know jack squat about CNC lathe tool setup but I am wondering if this problem has something to do with wether you are working on a radius or diameter of the part? Also you input T1 M6 G43 I know there will be no H factor but is there supposed to be something else instead? I need to lear

[Emc-users] understanding tool table and touch off for a lathe

2015-06-24 Thread Tom Easterday
For tool and work offsets on my mill I follow the advice given here: http://wiki.linuxcnc.org/cgi-bin/wiki.pl?MillSetup which in a nutshell says: you set one tool (an edge finder perhaps) at a specific point and then reference all tools (in