Re: [Emc-developers] Pncconf Step Timing Limit
On Wed, 30 Jun 2021, John Thornton wrote:
Date: Wed, 30 Jun 2021 16:44:54 -0500
From: John Thornton
Reply-To: EMC developers
To: emc-developers@lists.sourceforge.net
Subject: Re: [Emc-developers] Pncconf Step Timing Limit
Peter,
Do most Mesa stepgens have the same limit?
JT
~164 usec is the longest on cards with 100 MHz ClockLow =
7I76E,7I80,7I90,7I92,7I93,7I94,7I95,7I96,7I97,7I98
Cards with 50 MHz or 33 MHz ClockLow will have ~330 usec
or ~500 usec maximum timings.
On 6/30/2021 2:53 PM, Peter C. Wallace wrote:
On Wed, 30 Jun 2021, Chris Morley wrote:
Date: Wed, 30 Jun 2021 19:37:30 +
From: Chris Morley
Reply-To: EMC developers
To: EMC developers
Subject: Re: [Emc-developers] Pncconf Step Timing Limit
Yes... what limit do you think is reasonable?
Chris
I would think 50 usec would be ok for the slowest hardware
The stepgen firmware has a limit of ~164 usec for all timings
Original message
From: John
Date: 2021-06-30 7:49 a.m. (GMT-08:00)
To: emc-developers@lists.sourceforge.net
Subject: [Emc-developers] Pncconf Step Timing Limit
Hi Chris,
Can you increase the step timing to > 12,000?
"When I was using the parallel port, the step and hold were 12000 and
3500. The software maxes this out at 1 for the 7i92 so I used that
instead of 12000.
X axis will move, but NOT very smoothly. Y and Z do not move at all.
All 3 axis are identical, with the exception of the length of the
leadscrew (china cnc3040 machine). Same motor, same leadscrew pitch,
same wiring, etc. The motor driver is a TB6560 (not great, but works
fine for my tinkering)."
After advising the chap to edit the ini file and set the step timing
where he needed for his drives.
"Ok, I finally have 3 axis working smoothly. Editing the ini file and
playing with the step and hold times did the trick.
My apologies for being a little cranky, but I was working on it all last
week and into the weekend and was just hitting the brick wall. I had
assumed that the PncConf was showing the true max limits (step/hold) of
the card, so I didn't think there was anything else to be done."
Thanks
JT
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Re: [Emc-developers] Pncconf Step Timing Limit
Been so long since I programmed in Gtk I don't remember, but that is a good reason to have one :) JT On 6/30/2021 3:28 PM, Chris Morley wrote: Gtk Glade requires a limit. Original message From: John Thornton Date: 2021-06-30 1:09 p.m. (GMT-08:00) To: emc-developers@lists.sourceforge.net Subject: Re: [Emc-developers] Pncconf Step Timing Limit I'm not sure why there is a limit. I assume over the period would not be good. From the stepper timing chart http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Stepper_Drive_Timing it appears the TB6560 is 150,000 and is by far the worst one on that chart, but I'm not sure that is a reasonable number. The Linistepper Open SourceRULMS13104000 4000 I would think that 30,000 is a reasonable limit for step timing and direction. Thanks JT On 6/30/2021 2:37 PM, Chris Morley wrote: Yes... what limit do you think is reasonable? Chris Original message From: John Date: 2021-06-30 7:49 a.m. (GMT-08:00) To: emc-developers@lists.sourceforge.net Subject: [Emc-developers] Pncconf Step Timing Limit Hi Chris, Can you increase the step timing to > 12,000? "When I was using the parallel port, the step and hold were 12000 and 3500. The software maxes this out at 1 for the 7i92 so I used that instead of 12000. X axis will move, but NOT very smoothly. Y and Z do not move at all. All 3 axis are identical, with the exception of the length of the leadscrew (china cnc3040 machine). Same motor, same leadscrew pitch, same wiring, etc. The motor driver is a TB6560 (not great, but works fine for my tinkering)." After advising the chap to edit the ini file and set the step timing where he needed for his drives. "Ok, I finally have 3 axis working smoothly. Editing the ini file and playing with the step and hold times did the trick. My apologies for being a little cranky, but I was working on it all last week and into the weekend and was just hitting the brick wall. I had assumed that the PncConf was showing the true max limits (step/hold) of the card, so I didn't think there was anything else to be done." Thanks JT ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
Re: [Emc-developers] Pncconf Step Timing Limit
Peter,
Do most Mesa stepgens have the same limit?
JT
On 6/30/2021 2:53 PM, Peter C. Wallace wrote:
On Wed, 30 Jun 2021, Chris Morley wrote:
Date: Wed, 30 Jun 2021 19:37:30 +
From: Chris Morley
Reply-To: EMC developers
To: EMC developers
Subject: Re: [Emc-developers] Pncconf Step Timing Limit
Yes... what limit do you think is reasonable?
Chris
I would think 50 usec would be ok for the slowest hardware
The stepgen firmware has a limit of ~164 usec for all timings
Original message
From: John
Date: 2021-06-30 7:49 a.m. (GMT-08:00)
To: emc-developers@lists.sourceforge.net
Subject: [Emc-developers] Pncconf Step Timing Limit
Hi Chris,
Can you increase the step timing to > 12,000?
"When I was using the parallel port, the step and hold were 12000 and
3500. The software maxes this out at 1 for the 7i92 so I used that
instead of 12000.
X axis will move, but NOT very smoothly. Y and Z do not move at all.
All 3 axis are identical, with the exception of the length of the
leadscrew (china cnc3040 machine). Same motor, same leadscrew pitch,
same wiring, etc. The motor driver is a TB6560 (not great, but works
fine for my tinkering)."
After advising the chap to edit the ini file and set the step timing
where he needed for his drives.
"Ok, I finally have 3 axis working smoothly. Editing the ini file and
playing with the step and hold times did the trick.
My apologies for being a little cranky, but I was working on it all last
week and into the weekend and was just hitting the brick wall. I had
assumed that the PncConf was showing the true max limits (step/hold) of
the card, so I didn't think there was anything else to be done."
Thanks
JT
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Peter Wallace
Mesa Electronics
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Re: [Emc-developers] Pncconf Step Timing Limit
Gtk Glade requires a limit. Original message From: John Thornton Date: 2021-06-30 1:09 p.m. (GMT-08:00) To: emc-developers@lists.sourceforge.net Subject: Re: [Emc-developers] Pncconf Step Timing Limit I'm not sure why there is a limit. I assume over the period would not be good. From the stepper timing chart http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Stepper_Drive_Timing it appears the TB6560 is 150,000 and is by far the worst one on that chart, but I'm not sure that is a reasonable number. The Linistepper Open SourceRULMS13104000 4000 I would think that 30,000 is a reasonable limit for step timing and direction. Thanks JT On 6/30/2021 2:37 PM, Chris Morley wrote: > Yes... what limit do you think is reasonable? > Chris > > > Original message > From: John > Date: 2021-06-30 7:49 a.m. (GMT-08:00) > To: emc-developers@lists.sourceforge.net > Subject: [Emc-developers] Pncconf Step Timing Limit > > Hi Chris, > > Can you increase the step timing to > 12,000? > > "When I was using the parallel port, the step and hold were 12000 and > 3500. The software maxes this out at 1 for the 7i92 so I used that > instead of 12000. > > X axis will move, but NOT very smoothly. Y and Z do not move at all. > > All 3 axis are identical, with the exception of the length of the > leadscrew (china cnc3040 machine). Same motor, same leadscrew pitch, > same wiring, etc. The motor driver is a TB6560 (not great, but works > fine for my tinkering)." > > After advising the chap to edit the ini file and set the step timing > where he needed for his drives. > > "Ok, I finally have 3 axis working smoothly. Editing the ini file and > playing with the step and hold times did the trick. > > My apologies for being a little cranky, but I was working on it all last > week and into the weekend and was just hitting the brick wall. I had > assumed that the PncConf was showing the true max limits (step/hold) of > the card, so I didn't think there was anything else to be done." > > Thanks > JT > > > > ___ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > > ___ > Emc-developers mailing list > Emc-developers@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-developers > ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
Re: [Emc-developers] Pncconf Step Timing Limit
I'm not sure why there is a limit. I assume over the period would not be good. From the stepper timing chart http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Stepper_Drive_Timing it appears the TB6560 is 150,000 and is by far the worst one on that chart, but I'm not sure that is a reasonable number. The Linistepper Open Source RULMS1 3 10 4000 4000 I would think that 30,000 is a reasonable limit for step timing and direction. Thanks JT On 6/30/2021 2:37 PM, Chris Morley wrote: Yes... what limit do you think is reasonable? Chris Original message From: John Date: 2021-06-30 7:49 a.m. (GMT-08:00) To: emc-developers@lists.sourceforge.net Subject: [Emc-developers] Pncconf Step Timing Limit Hi Chris, Can you increase the step timing to > 12,000? "When I was using the parallel port, the step and hold were 12000 and 3500. The software maxes this out at 1 for the 7i92 so I used that instead of 12000. X axis will move, but NOT very smoothly. Y and Z do not move at all. All 3 axis are identical, with the exception of the length of the leadscrew (china cnc3040 machine). Same motor, same leadscrew pitch, same wiring, etc. The motor driver is a TB6560 (not great, but works fine for my tinkering)." After advising the chap to edit the ini file and set the step timing where he needed for his drives. "Ok, I finally have 3 axis working smoothly. Editing the ini file and playing with the step and hold times did the trick. My apologies for being a little cranky, but I was working on it all last week and into the weekend and was just hitting the brick wall. I had assumed that the PncConf was showing the true max limits (step/hold) of the card, so I didn't think there was anything else to be done." Thanks JT ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
Re: [Emc-developers] Pncconf Step Timing Limit
There you go!
JT
On 6/30/2021 2:53 PM, Peter C. Wallace wrote:
On Wed, 30 Jun 2021, Chris Morley wrote:
Date: Wed, 30 Jun 2021 19:37:30 +
From: Chris Morley
Reply-To: EMC developers
To: EMC developers
Subject: Re: [Emc-developers] Pncconf Step Timing Limit
Yes... what limit do you think is reasonable?
Chris
I would think 50 usec would be ok for the slowest hardware
The stepgen firmware has a limit of ~164 usec for all timings
Original message
From: John
Date: 2021-06-30 7:49 a.m. (GMT-08:00)
To: emc-developers@lists.sourceforge.net
Subject: [Emc-developers] Pncconf Step Timing Limit
Hi Chris,
Can you increase the step timing to > 12,000?
"When I was using the parallel port, the step and hold were 12000 and
3500. The software maxes this out at 1 for the 7i92 so I used that
instead of 12000.
X axis will move, but NOT very smoothly. Y and Z do not move at all.
All 3 axis are identical, with the exception of the length of the
leadscrew (china cnc3040 machine). Same motor, same leadscrew pitch,
same wiring, etc. The motor driver is a TB6560 (not great, but works
fine for my tinkering)."
After advising the chap to edit the ini file and set the step timing
where he needed for his drives.
"Ok, I finally have 3 axis working smoothly. Editing the ini file and
playing with the step and hold times did the trick.
My apologies for being a little cranky, but I was working on it all last
week and into the weekend and was just hitting the brick wall. I had
assumed that the PncConf was showing the true max limits (step/hold) of
the card, so I didn't think there was anything else to be done."
Thanks
JT
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Mesa Electronics
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(")_(") signature to help him gain world domination.
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Re: [Emc-developers] Pncconf Step Timing Limit
On Wed, 30 Jun 2021, Chris Morley wrote:
Date: Wed, 30 Jun 2021 19:37:30 +
From: Chris Morley
Reply-To: EMC developers
To: EMC developers
Subject: Re: [Emc-developers] Pncconf Step Timing Limit
Yes... what limit do you think is reasonable?
Chris
I would think 50 usec would be ok for the slowest hardware
The stepgen firmware has a limit of ~164 usec for all timings
Original message
From: John
Date: 2021-06-30 7:49 a.m. (GMT-08:00)
To: emc-developers@lists.sourceforge.net
Subject: [Emc-developers] Pncconf Step Timing Limit
Hi Chris,
Can you increase the step timing to > 12,000?
"When I was using the parallel port, the step and hold were 12000 and
3500. The software maxes this out at 1 for the 7i92 so I used that
instead of 12000.
X axis will move, but NOT very smoothly. Y and Z do not move at all.
All 3 axis are identical, with the exception of the length of the
leadscrew (china cnc3040 machine). Same motor, same leadscrew pitch,
same wiring, etc. The motor driver is a TB6560 (not great, but works
fine for my tinkering)."
After advising the chap to edit the ini file and set the step timing
where he needed for his drives.
"Ok, I finally have 3 axis working smoothly. Editing the ini file and
playing with the step and hold times did the trick.
My apologies for being a little cranky, but I was working on it all last
week and into the weekend and was just hitting the brick wall. I had
assumed that the PncConf was showing the true max limits (step/hold) of
the card, so I didn't think there was anything else to be done."
Thanks
JT
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Mesa Electronics
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Re: [Emc-developers] Pncconf Step Timing Limit
Yes... what limit do you think is reasonable? Chris Original message From: John Date: 2021-06-30 7:49 a.m. (GMT-08:00) To: emc-developers@lists.sourceforge.net Subject: [Emc-developers] Pncconf Step Timing Limit Hi Chris, Can you increase the step timing to > 12,000? "When I was using the parallel port, the step and hold were 12000 and 3500. The software maxes this out at 1 for the 7i92 so I used that instead of 12000. X axis will move, but NOT very smoothly. Y and Z do not move at all. All 3 axis are identical, with the exception of the length of the leadscrew (china cnc3040 machine). Same motor, same leadscrew pitch, same wiring, etc. The motor driver is a TB6560 (not great, but works fine for my tinkering)." After advising the chap to edit the ini file and set the step timing where he needed for his drives. "Ok, I finally have 3 axis working smoothly. Editing the ini file and playing with the step and hold times did the trick. My apologies for being a little cranky, but I was working on it all last week and into the weekend and was just hitting the brick wall. I had assumed that the PncConf was showing the true max limits (step/hold) of the card, so I didn't think there was anything else to be done." Thanks JT ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
[Emc-developers] Pncconf Step Timing Limit
Hi Chris, Can you increase the step timing to > 12,000? "When I was using the parallel port, the step and hold were 12000 and 3500. The software maxes this out at 1 for the 7i92 so I used that instead of 12000. X axis will move, but NOT very smoothly. Y and Z do not move at all. All 3 axis are identical, with the exception of the length of the leadscrew (china cnc3040 machine). Same motor, same leadscrew pitch, same wiring, etc. The motor driver is a TB6560 (not great, but works fine for my tinkering)." After advising the chap to edit the ini file and set the step timing where he needed for his drives. "Ok, I finally have 3 axis working smoothly. Editing the ini file and playing with the step and hold times did the trick. My apologies for being a little cranky, but I was working on it all last week and into the weekend and was just hitting the brick wall. I had assumed that the PncConf was showing the true max limits (step/hold) of the card, so I didn't think there was anything else to be done." Thanks JT ___ Emc-developers mailing list Emc-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-developers
