Re: [Emc-users] losing position

2011-04-15 Thread Kim Kirwan
Can anything be done by improving halscope? Maybe save a list of 16(?) significant hal items (time, in-cycle yes/no?, encoder positions, following errors, velocities, etc., whatever might be helpful) and save them to disk so that you at least have a bunch of logged data to review after trouble

Re: [Emc-users] Basic setup for lathe w steppers and spindle index

2011-04-15 Thread andy pugh
On 15 April 2011 23:19, Colin K wrote: > On Apr 15, 2011, at 2:08 PM, andy pugh wrote: >> >> If you _only_ have index then you have to be very sure that the spindle >> speed won't vary during a cut. > > Does EMC compensate for spindle speed at all in this case, or is the second > encoder requir

Re: [Emc-users] losing position

2011-04-15 Thread Jon Elson
Stuart Stevenson wrote: > nothing is figured out yet > Ugh! Debugging something that only happens every couple days can be real hard. If it only happens once a month or less, it can be maddening, as you have no idea whether you really have it fixed until YEARS have gone by! Jon --

Re: [Emc-users] Basic setup for lathe w steppers and spindle index

2011-04-15 Thread Colin K
On Apr 15, 2011, at 2:08 PM, andy pugh wrote: > > If you _only_ have index then you have to be very sure that the spindle speed > won't vary during a cut. Does EMC compensate for spindle speed at all in this case, or is the second encoder required for that? I don't generally expect any more fr

Re: [Emc-users] Coil winding on a lathe

2011-04-15 Thread andy pugh
On 15 April 2011 22:09, Frank Tkalcevic wrote: > I have wound single layer coils before, but I was wondering if it is > possible to do multiple layers using G76 = canned threading cycle? I would have thought that G1 moves in feed-per-rev would work best in this application. -- atp "Torque wren

Re: [Emc-users] Coil winding on a lathe

2011-04-15 Thread Igor Chudov
http://linuxcnc.org/docs/html/gcode_main.html#sec:G33,-G33.1:-Spindle-Synchronized On Fri, Apr 15, 2011 at 4:09 PM, Frank Tkalcevic < fr...@franksworkshop.com.au> wrote: > I need to wind a coil for an RFID reader - about 90 turns, 5mm wide, 8 > layers. > > I have wound single layer coils before,

[Emc-users] Coil winding on a lathe

2011-04-15 Thread Frank Tkalcevic
I need to wind a coil for an RFID reader - about 90 turns, 5mm wide, 8 layers. I have wound single layer coils before, but I was wondering if it is possible to do multiple layers using G76 = canned threading cycle? Can I use multiple G76 commands to lay the coil forward, then backward? Will the

Re: [Emc-users] losing position

2011-04-15 Thread dave
On Fri, 2011-04-15 at 12:03 -0500, Stuart Stevenson wrote: > On Fri, Apr 15, 2011 at 11:19 AM, Jon Elson wrote: > > > Stuart Stevenson wrote: > > > Gentlemen, > > > Another point of interest FYI. > > > The operator reported putting .392 in the g54 offset has eliminated the > > > miss position

Re: [Emc-users] Basic setup for lathe w steppers and spindle index

2011-04-15 Thread andy pugh
On 15 April 2011 18:44, Colin K wrote: > Right now I have my spindle index wired in and if I use the hal config > screens in axis I can see the state of the pin flip as I turn the spindle. > However I get the sense I may need to do a bit more config to get it all to > work. If you _only_ have

Re: [Emc-users] Basic setup for lathe w steppers and spindle index

2011-04-15 Thread John Thornton
There is an example in the Integrators Manual. John Colin K wrote: > Hi all, > > I recently set up my mini lathe with the EMC stepconf and the basic functions > are great. However I do not have any tach display in Axis and if I try to run > a g76 cycle everything in Axis looks right but when I

[Emc-users] Basic setup for lathe w steppers and spindle index

2011-04-15 Thread Colin K
Hi all, I recently set up my mini lathe with the EMC stepconf and the basic functions are great. However I do not have any tach display in Axis and if I try to run a g76 cycle everything in Axis looks right but when I hit go, it just stares back at me and does nothing. Right now I have my spi

Re: [Emc-users] losing position

2011-04-15 Thread Stuart Stevenson
On Fri, Apr 15, 2011 at 11:19 AM, Jon Elson wrote: > Stuart Stevenson wrote: > > Gentlemen, > > Another point of interest FYI. > > The operator reported putting .392 in the g54 offset has eliminated the > > miss position occurrences. Apparently, the g55 position was not miss > > positioning a

Re: [Emc-users] losing position

2011-04-15 Thread Stuart Stevenson
On Fri, Apr 15, 2011 at 11:05 AM, Chris Radek wrote: > On Fri, Apr 15, 2011 at 10:28:00AM -0500, Stuart Stevenson wrote: > > > Gentlemen, > > Another point of interest FYI. > > The operator reported putting .392 in the g54 offset has eliminated the > > miss position occurrences. Apparently, t

Re: [Emc-users] losing position

2011-04-15 Thread Jon Elson
Stuart Stevenson wrote: > Gentlemen, > Another point of interest FYI. > The operator reported putting .392 in the g54 offset has eliminated the > miss position occurrences. Apparently, the g55 position was not miss > positioning at all, ever. > Are you saying this was ALL operator error? (D

Re: [Emc-users] losing position

2011-04-15 Thread Chris Radek
On Fri, Apr 15, 2011 at 10:28:00AM -0500, Stuart Stevenson wrote: > Gentlemen, > Another point of interest FYI. > The operator reported putting .392 in the g54 offset has eliminated the > miss position occurrences. Apparently, the g55 position was not miss > positioning at all, ever. I do not

Re: [Emc-users] losing position

2011-04-15 Thread Stuart Stevenson
Gentlemen, Another point of interest FYI. The operator reported putting .392 in the g54 offset has eliminated the miss position occurrences. Apparently, the g55 position was not miss positioning at all, ever. thanks Stuart -- dos centavos --

Re: [Emc-users] RC Servo on Wiki

2011-04-15 Thread andy pugh
On 15 April 2011 05:27, Kirk Wallace wrote: > Maybe a PUMA model could be made with RC servo's. I am wondering about a tiny little DELTA robot. (Google) Looks like it has already been done... http://www.jarkman.co.uk/catalog/robots/sketchy.htm -- atp "Torque wrenches are for the obedience of f