and finish some of the other
projects so I can make toothed pulleys for perfect 1:1 and 2:1.
John
> -Original Message-
> From: ken.stra...@gmail.com [mailto:ken.stra...@gmail.com]
> Sent: July-10-21 5:56 PM
> To: 'Enhanced Machine Controller (EMC)'
> Subject: Re: [Emc-users] Runa
for a 1/4-20 tap. You'll
also need more spindle torque than with a cutting tap.
-Original Message-
From: John Dammeyer
Sent: July 10, 2021 8:07 PM
To: 'Enhanced Machine Controller (EMC)'
Subject: Re: [Emc-users] Runaway PID spindle.
Looks like KBCTools has a few at reasonable prices
> -Original Message-
> From: ken.stra...@gmail.com [mailto:ken.stra...@gmail.com]
> Sent: July-10-21 4:46 PM
> To: 'Enhanced Machine Controller (EMC)'
> Subject: Re: [Emc-users] Runaway PID spindle.
>
> The one in the picture came from Fastenal. When they discont
without flutes!
-Original Message-
From: John Dammeyer
Sent: July 10, 2021 6:07 PM
To: 'Enhanced Machine Controller (EMC)'
Subject: Re: [Emc-users] Runaway PID spindle.
Where did you get your forming taps?
I just ran my 10-32 into a casting remnant. I keep the risers and turn them
round
gt; Subject: Re: [Emc-users] Runaway PID spindle.
>
> I think that is a spiral point tap.
> The flute is straight along the length of the tap then the flute is is
> ground deeper toward the backside of the cutting edge.
>
> AutomationDirect.com sells some really nice taps
Re: [Emc-users] Runaway PID spindle.
>
> I think that is a spiral point tap.
> The flute is straight along the length of the tap then the flute is is
> ground deeper toward the backside of the cutting edge.
>
> AutomationDirect.com sells some really nice taps for reasonable amounts.
&
I think that is a spiral point tap.
The flute is straight along the length of the tap then the flute is is
ground deeper toward the backside of the cutting edge.
AutomationDirect.com sells some really nice taps for reasonable amounts.
Dave
On 7/9/2021 8:32 PM, John Dammeyer wrote:
The
The saying we have on another group is if there aren't pictures it didn't
happen. I hand held the camera so depth of field is out a little on the 10-32
screw head and the macro lens is bad for depth of field as it is.
Short G-Code 200 RPM tapping into really soft aluminium trimmed off an old
> From: andy pugh [mailto:bodge...@gmail.com]
> On Fri, 9 Jul 2021 at 18:43, John Dammeyer wrote:
>
> > Although if I understand the G31.1 correctly the Z axis tracks the encoder
> > reported speed right?
>
> No, that would be silly. It tracks the actual spindle position.
>
> G74 / G84 work
On Fri, 9 Jul 2021 at 18:43, John Dammeyer wrote:
> Although if I understand the G31.1 correctly the Z axis tracks the encoder
> reported speed right?
No, that would be silly. It tracks the actual spindle position.
G74 / G84 work on open-loop velocity, but assume a tension/compression head.
age-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: July-09-21 12:44 AM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Runaway PID spindle.
>
> On Fri, 9 Jul 2021 at 01:20, John Dammeyer wrote:
>
> > If I set it to 0.05 then the spindle does s
On Fri, 9 Jul 2021 at 01:20, John Dammeyer wrote:
> If I set it to 0.05 then the spindle does stop but now the PID isn't very
> responsive. I have to add large amounts of P and I to get it to stabilize
> quickly and at 100RPM it then surges
I would expect a spindle PID to mainly rely on FF0
On Thu, 8 Jul 2021, John Dammeyer wrote:
Date: Thu, 8 Jul 2021 18:16:15 -0700
From: John Dammeyer
Reply-To: "Enhanced Machine Controller (EMC)"
To: "'Enhanced Machine Controller (EMC)'"
Subject: Re: [Emc-users] Runaway PID spindle.
From: Peter C. Wallace [mailto:p..
> From: Peter C. Wallace [mailto:p...@mesanet.com]
> > From: John Dammeyer
> >
> > Maybe it's a MESA issue? It's set up as output type 1 which is 0-100% which
> > means either the Out2 should invert when pwmgen gets negative? Or the
> > output
> > should clip to 0 when the calculation
On Thu, 8 Jul 2021, John Dammeyer wrote:
Date: Thu, 8 Jul 2021 17:17:09 -0700
From: John Dammeyer
Reply-To: "Enhanced Machine Controller (EMC)"
To: "'Enhanced Machine Controller (EMC)'"
Subject: Re: [Emc-users] Runaway PID spindle.
Maybe it's a MESA issue? It's set
I tell it isn't what
it's doing and that's an issue for tapping.
John
> -Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: July-08-21 4:25 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Runaway PID spindle.
>
> On Fri
On Fri, 9 Jul 2021 at 00:21, John Dammeyer wrote:
>
> Oh and I was using this series of postings as a guide.
> https://forum.linuxcnc.org/49-basic-configuration/32553-spindle-pid-control
> but he never ran into this issue. Same with the other postings where they
> have problems achieving the
.
> -Original Message-
> From: andy pugh [mailto:bodge...@gmail.com]
> Sent: July-08-21 3:57 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Runaway PID spindle.
>
> On Thu, 8 Jul 2021 at 23:19, John Dammeyer wrote:
>
> > When I click the '-' with
> From: andy pugh [mailto:bodge...@gmail.com]
> On Thu, 8 Jul 2021 at 23:19, John Dammeyer wrote:
>
> > When I click the '-' with the RPM at 501 it drops to 401. Again and so on
> > down to 101. The last click should take it down to 1 or 0
> RPM. However that last click sends it to max speed
On Thu, 8 Jul 2021 at 23:19, John Dammeyer wrote:
> When I click the '-' with the RPM at 501 it drops to 401. Again and so on
> down to 101. The last click should take it down to 1 or 0 RPM. However that
> last click sends it to max speed of 3000 RPM.
This happens when the PID goes
I'm at a loss to understand what is going wrong and therefore other than
randomly trying different parameter values I'm not really moving forward.
What's happening is this on the 2.7.14 LinuxCNC system:
I've set the PID with P=1.8 and I=1.0 using the PWM module on the 7i92H which
is creating a
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