On Sun, 21 Oct 2012 11:40:15 -0500
Chris Radek ch...@timeguy.com wrote:
G76 uses spindle position (spindle-revs). G95/G96 use spindle
velocity (spindle-speed-in). Are you sure you've hooked up both?
See the motion.spindle* section of
http://linuxcnc.org/docs/html/man/man9/motion.9.html
On Sat, 20 Oct 2012 20:44:02 -0500
ed ate...@mwt.net wrote:
Finally got my Hardinge CHNC lathe up and mostly running and am
having a problem. Do you simply put G95 on a line then on the next G1
make sure there is a F feedrate per rev? What ever I try the prog
stops with the spindle running
Matt Shaver wrote:
On Sat, 20 Oct 2012 20:44:02 -0500
ed ate...@mwt.net wrote:
Finally got my Hardinge CHNC lathe up and mostly running and am
having a problem. Do you simply put G95 on a line then on the next G1
make sure there is a F feedrate per rev? What ever I try the prog
stops
I don't think the spindle encoder is relevant unless you have closed
loop spindle control. My guess is it only looks at the S word rpm's to
calculate feed rate.
then how would it know where to index the cut at?
--
jeremy youngs
On Sun, Oct 21, 2012 at 11:12:12AM -0400, Matt Shaver wrote:
Thanks for confirming what I have been thinking - That G95 is broken
somehow. I consult for Smithy who sells CNC lathes with Linuxcnc
control, and our lathe customers report this same behavior.
Interestingly G76 threading works OK,
On Sun, Oct 21, 2012 at 11:26:52AM -0500, ed wrote:
I don't think the spindle encoder is relevant unless you have closed
loop spindle control. My guess is it only looks at the S word rpm's to
calculate feed rate.
Your guess is incorrect - thanks for labeling it as a guess, so as
not to
On Sun, Oct 21, 2012 at 12:31:26PM -0400, jeremy youngs wrote:
I don't think the spindle encoder is relevant unless you have closed
loop spindle control. My guess is it only looks at the S word rpm's to
calculate feed rate.
then how would it know where to index the cut at?
G95 is not used
On 21 October 2012 16:12, Matt Shaver m...@mattshaver.com wrote:
Thanks for confirming what I have been thinking - That G95 is broken
somehow.
My lathe was running 2.5, and G95 worked as expected.
Deleting the link to motion.spindle-speed-in stopped it working, however.
I then upgraded to
andy pugh wrote:
On 21 October 2012 16:12, Matt Shaver m...@mattshaver.com wrote:
Thanks for confirming what I have been thinking - That G95 is broken
somehow.
My lathe was running 2.5, and G95 worked as expected.
Deleting the link to motion.spindle-speed-in stopped it working,
On 21 October 2012 19:43, ed ate...@mwt.net wrote:
I am running 2.51 at this time. Could you tell what the links are?
http://www.linuxcnc.org/docs/2.4/html/examples_spindle.html#sec:Spindle-Synchronized-Motion
You need to link motion.spindle-speed-in to something (possibly
Finally got my Hardinge CHNC lathe up and mostly running and am having a
problem. Do you simply put G95 on a line then on the next G1 make sure
there is a F feedrate per rev? What ever I try the prog stops with the
spindle running on the first G1 line. Baffling.
Maybe someone has a small
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