>
> Yes I think this is possible (basically using the index hardware as a
> latch to
> catch the quick index pulse) but note that the actual home position will
> vary
> with the velocity when the index is detected (and with a servo thread
> period
> uncertainty)
>
I assume that, the slower the
On Fri, 10 Apr 2020, Leonardo Marsaglia wrote:
Date: Fri, 10 Apr 2020 22:08:05 -0300
From: Leonardo Marsaglia
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] Home use index problem (In step + dir mode)
Sorry for not catch it
On Sat, 11 Apr 2020 at 02:50, Ed wrote:
> I'm thinking gear hobs or single cutters.
I have been thinking of making gear hobs this way for a while. What
holds me back is that I am not sure that I know how to heat treat the
hob to a state that will cut the materials that I want to make gears
out
>
> Lathe mode!
>
> https://www.youtube.com/watch?v=P0RP7s-rDsg
I really envy you. It seems you're having lots of fun with that mill!
El vie., 10 abr. 2020 a las 13:05, Sam Sokolik ()
escribió:
> Lathe mode!
>
> https://www.youtube.com/watch?v=P0RP7s-rDsg
>
> sam
>
> On Fri, Apr 3, 2020 at
On 4/10/20 8:36 PM, Gregg Eshelman via Emc-users wrote:
Now you can make your own thread taps with the cutting edges properly relieved.
On Friday, April 10, 2020, 10:06:10 AM MDT, Sam Sokolik
wrote:
Lathe mode!
https://www.youtube.com/watch?v=P0RP7s-rDsg
I'm thinking gear hobs or
Now you can make your own thread taps with the cutting edges properly relieved.
On Friday, April 10, 2020, 10:06:10 AM MDT, Sam Sokolik
wrote:
Lathe mode!
https://www.youtube.com/watch?v=P0RP7s-rDsg
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Sorry for not catch it earlier Peter. I thought no matter the feedback,
when index was detected it will behave as a second home switch.
I'm thinking now about making a custom component to use as limit switch and
drive it with the actual limit switch for home search and with the index
pulse
On Fri, 10 Apr 2020, Leonardo Marsaglia wrote:
Date: Fri, 10 Apr 2020 20:32:23 -0300
From: Leonardo Marsaglia
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] Home use index problem (In step + dir mode)
I'm playing with the
I'm playing with the homing at slow speeds so I can hit the home switch
always half a turn away from the index pulse more or less.
One thing is happening is the following:
If I let the mark (keyway in this case) of the motor at 3 o'clock and then
I turn off LinuxCNC, whenever I home the axis
Thanks Andy! I'll have a look. Funny how so much of what I need to find
in installed on the original iso lol
On Sat, Apr 11, 2020, 9:28 AM andy pugh wrote:
> On Fri, 10 Apr 2020 at 20:58, andrew beck
> wrote:
>
> > Hey guys has anyone retrofitted a random position toolchanger on a cnc
> mill
>
> You can use homing with index if you use the drives encoder output
> for feedback, but this is a bit more work and more difficult
> to tune
Do you think is a good practice to use them as feedback? Because I'll
be coupling the servos to the ballscrews with a timing belt, so this might
not be
On Fri, 10 Apr 2020, Leonardo Marsaglia wrote:
Date: Fri, 10 Apr 2020 19:01:51 -0300
From: Leonardo Marsaglia
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] Home use index problem (In step + dir mode)
Do you have a home
>
> Just to muddy the water: I don't use the home switch, just manually
> adjust starting point so a laser pointer is coincident with a hole in a
> tab (x & y). Kick off homing and it picks up the index and moves to the
> appropriate axis zero. It is about as lazy as one can get and still have
>
Well I increased the MIN_FERROR in the ini file and that solved the problem
of the following error while homing only with index.
What's not clear to me is why I can't home with the switch and index. I'm
only changing the HOME_SEARCH_VELOCITY to 0 and nothing more.
El vie., 10 abr. 2020 a las
On 4/10/20 1:01 PM, Peter C. Wallace wrote:
On Fri, 10 Apr 2020, Leonardo Marsaglia wrote:
Date: Fri, 10 Apr 2020 16:50:15 -0300
From: Leonardo Marsaglia
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] Home use index
>
> Do you have a home switch and is it working?
> If you want to home to index only you must set HOME_SEARCH_VELOCITY to 0
The home switch is working perfectly. I'm pushing it by hand because I'm
only testing in the desk but it works. If I only use home switch for homing
it works perfectly. The
On Friday 10 April 2020 15:33:16 Ken Strauss wrote:
> > -Original Message-
> > From: Gene Heskett [mailto:ghesk...@shentel.net]
> > Sent: Friday, April 10, 2020 2:35 PM
> > To: Robert Ellenberg; emc-users@lists.sourceforge.net
> > Subject: Re: [Emc-users] [Emc-developers] Toolchange and
On Fri, 10 Apr 2020 at 20:58, andrew beck wrote:
> Hey guys has anyone retrofitted a random position toolchanger on a cnc mill
> before? I'm looking for configs and examples so I don't have to reinvent
> the wheel.
The (non-random) example in sim/axis/vismach/vmc-toolchange might be a
decent
On Fri, 10 Apr 2020, Leonardo Marsaglia wrote:
Date: Fri, 10 Apr 2020 16:50:15 -0300
From: Leonardo Marsaglia
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] Home use index problem (In step + dir mode)
Thank you Peter for
Hey guys has anyone retrofitted a random position toolchanger on a cnc mill
before? I'm looking for configs and examples so I don't have to reinvent
the wheel.
Regards
Andrew
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Thank you Peter for your quick response.
I just checked my ini file and the entry is like this HOME_USE_INDEX = YES.
I also have set SEARCH VEL and LATCH VEL at 10 and 5 respectively. I even
inverter the differential pins on the Z pulse just to be sure they weren't
backwards but the behaviour is
> -Original Message-
> From: Gene Heskett [mailto:ghesk...@shentel.net]
> Sent: Friday, April 10, 2020 2:35 PM
> To: Robert Ellenberg; emc-users@lists.sourceforge.net
> Subject: Re: [Emc-users] [Emc-developers] Toolchange and tlo behaviour
> change in 2.8
>
> On Friday 10 April 2020
On Fri, 10 Apr 2020, Leonardo Marsaglia wrote:
Date: Fri, 10 Apr 2020 16:11:18 -0300
From: Leonardo Marsaglia
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: [Emc-users] Home use index problem (In step + dir mode)
Hello guys again,
I'm
>
> The problem is, I can't make the homing with index feature to work. I can
> see the index pulse triggering to FALSE when the shaft completes the turn,
> and I even set the pin to TRUE again manually to see if the homing sequence
> stops, but the motor keeps turning at final velocity waiting
Thank you guys,
I think I'm going to stick to what I was planning. Use the alarm component
to inhibit the feed or turn off the machine via the motion.enable pin and
use the external e-stop button to turn off the contactors that feed the
servos. I have it this way on the other machines but I can't
Hello guys again,
I'm testing the homing of the X axis with a push button and that works
except when the index pulse has to trigger. That never happens.
I'm using the 7i52S to move my servo with step + dir for position command
right to the drive. In LCNC the stepper is working in velocity mode
On Friday 10 April 2020 08:24:11 Robert Ellenberg wrote:
> Gene,
>
> Have you seen Tormach's TTS for R8 spindles? It has some shortcomings
> but solves the repeatability problem, and has shorter tool holders
> than native R8 :
>
>
Lathe mode!
https://www.youtube.com/watch?v=P0RP7s-rDsg
sam
On Fri, Apr 3, 2020 at 4:21 PM Sam Sokolik wrote:
> Andy - I was wonder if that was possible. I would have to look what comes
> back from the stmbl drive...
> Or I could just get a better spindle encoder... :)
>
> Try to broach
Axes working now. I found my error in configuration. The axes were moving
in the commanded direction, but I didn't notice that the encoder was
reading the opposite sign of that direction.
Duh!
On Thu, Apr 9, 2020 at 10:01 PM Joe H <67p...@gmail.com> wrote:
> Thanks, Gene I won't dwell on that
On Fri, 10 Apr 2020 at 03:44, Leonardo Marsaglia wrote:
> I plan to use the motion.enable pin as a machine turn off mechanism in case
> some alarm trigger but the condition is not quite severe to call for an
> e-stop.
motion.enable should theoretically be more reliable than the iocontrol
pins
We are debating a change to the G43 default behaviour in the next
LinuxCNC version.
So:
Has anyone here ever deliberately coded a tool change without a G43?
If so, what was the reason?
(I don't mean in the context of a lathe-style remap or with
FEATURES[0] enabled)
--
atp
"A motorcycle is a
I am grateful to everyone for helping me.
The solution axis.L.jogaccelfraction IN FLOAT
from Peter C. Wallace
Regards Csaba
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