Re: [Emc-users] nother Q for Peter
On Monday, 18 April 2022 19:08:21 EDT Peter C. Wallace wrote: > > this line? > > > > loadrt hm2_pci config="num_pwmgens=1 num_stepgens=4 num_encoders=1 > > sserial_port_0=1xxx" > > Yes, the sserial_port_0=1xxx line sets the 7I76 field I/O section > (port 0 channel 0) into mode 1 which includes the analog inputs. > > The analog inputs default to reading volts but can be rescaled > by changing the corresponding "scalemax" parameters > So by default. a bit is .142578125 volts. Hummm. Seems odd. I would have expected $00 to $FF as output. So I'll have to install this box, and actually hook it up to see what I get. I've found some old vfets I used as charge pump detectors, and bought enough to make a dozen of them. But the ink on the epoxy to220 bodies has gone away so they are now unidentifiable. I am able to determine the gate leg, but can't tell src from drain. Those two legs read 2+ megs to each other, either polarity. Those I have, the tip-120's are a week away. I wondered if the 3d printer state was such that I could make pcb's on it but some online checking convinced me its not quite a daily driver tech yet. So back to learning pcb-rnd and exporting gcode. I was familiar with eagle, a decade ago, but it was sold and destroyed. For vfets in plastic to220 cases, whats the pin order with the gate on the left? Anybody know which is src and which is drain? Thanks Peter, take care & stay well, both of you. > Peter Wallace > Mesa Electronics > > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > . Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] nother Q for Peter
this line? loadrt hm2_pci config="num_pwmgens=1 num_stepgens=4 num_encoders=1 sserial_port_0=1xxx" Yes, the sserial_port_0=1xxx line sets the 7I76 field I/O section (port 0 channel 0) into mode 1 which includes the analog inputs. The analog inputs default to reading volts but can be rescaled by changing the corresponding "scalemax" parameters Peter Wallace Mesa Electronics ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] nother Q for Peter
On Monday, 18 April 2022 18:19:06 EDT Peter C. Wallace wrote: > On Mon, 18 Apr 2022, gene heskett wrote: > > Date: Mon, 18 Apr 2022 18:11:54 -0400 > > From: gene heskett > > Reply-To: "Enhanced Machine Controller (EMC)" > > > > > > > > To: "Enhanced Machine Controller (EMC)" > > Subject: Re: [Emc-users] nother Q > > for Peter > > > > On Monday, 18 April 2022 17:33:48 EDT Peter C. Wallace wrote: > >> On Mon, 18 Apr 2022, gene heskett wrote: > >>> Date: Mon, 18 Apr 2022 16:37:48 -0400 > >>> From: gene heskett > >>> Reply-To: "Enhanced Machine Controller (EMC)" > >>> > >>> > >>> > >>> To: "Enhanced Machine Controller (EMC)" > >>> Subject: Re: [Emc-users] nother Q > >>> for Peter > >>> > >>> On Monday, 18 April 2022 13:49:36 EDT gene heskett wrote: > On Monday, 18 April 2022 10:38:10 EDT Peter C. Wallace wrote: > > On Mon, 18 Apr 2022, gene heskett wrote: > >> Date: Mon, 18 Apr 2022 04:19:27 -0400 > >> From: gene heskett > >> Reply-To: "Enhanced Machine Controller (EMC)" > >> > >> > >> > >> To: "Enhanced Machine Controller (EMC)" > >> Subject: [Emc-users] nother Q > >> for > >> Peter > >> > >> Greetings; > >> > >> How does the A/D on a 7i76D handle overvoltage? I'm considering > >> a > >> long > >> tailed vfet pair with a 22k pullup to 42 volts. Does it just > >> goto > >> full > >> scale at an $FF output, or will that blow something? > > > > Full scale (inputs will take up to 100V indefinitely) > > but adjacent inputs may read incorrectly if more than about > > 50V is suppled (due to current injection into parasitic > > transistors related to the input ESD diodes of the CPU) > > Excellent news Peter, I'm off to the races then. > >>> > >>> But the starting gate won't open. I've re-read 7i76man.pdf several > >>> times w/o the method of actually getting the digital value from one > >>> of the 4 ports it works for. I have something tied to port-0, but I > >>> think that may be a leftover from before I used the hy-485 module > >>> to > >>> drive the spindle, so it looks like I should figure on using > >>> port-1. > >>> > >>> How does reading an A/D derived digital value from port-1 get done > >>> in > >>> the hal file? > >>> > >>> Thank you. > >>> > >>> Cheers, Gene Heskett. > >>> -- > >>> "There are four boxes to be used in defense of liberty: > >>> soap, ballot, jury, and ammo. Please use in that order." > >>> -Ed Howdershelt (Author, 1940) > >>> If we desire respect for the law, we must first make the law > >>> respectable. - Louis D. Brandeis > >> > >> The pins are: > >> > >> hm2_5i25.0.7i76.0.0.analogin0 > >> hm2_5i25.0.7i76.0.0.analogin1 > >> hm2_5i25.0.7i76.0.0.analogin2 > >> hm2_5i25.0.7i76.0.0.analogin3 > >> > >> > >> You need to set the 7I76 in a mode that enables the analog inputs > >> (modes 1 or 2) > > > > That sounds like it should be a setp, but it doesn't jump off of page > > 31 at me. Looking at the analogin0, I'm seeing a flash of noise at > > about 1 second intervals which I assume is the update rate. And I > > don't currently have any setp's that seem to address the 7i76. Do I > > need to dl a fresh copy of the 7i76man.pdf? I've had this one for > > 3, maybe 4 years. > The analog update rate is the servo thread rate (the aquisition rate is > about 50 KHz) That will help. Its currently running the servo thread at 2 kilohertz. > If you have a analogin0 pin you are have already setup a mode that > includes analog input > > (the mode setup is done in the sserial_port_0=NNN line in the > driver command line) this line? loadrt hm2_pci config="num_pwmgens=1 num_stepgens=4 num_encoders=1 sserial_port_0=1xxx" I am useing 0-3 stepgens. pwmgen0 purportedly steals stepgen4's pins, ahh, base number 0. my mistake. pwmgen0 uses stepgen4's pins according to what I have deciphered. But I was using 4 stepgens. Now XYZB. And it appears the pwmgen0 was also replaced by the hy-vfd so I can use it for this without adding another pwmgen1. I don't think I've anything wired to those two pins now. Gotta get my head around this hal file better. Been too long since I configured it. And oldtimers seems to be the thing now. Thanks Peter. Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] nother Q for Peter
On Mon, 18 Apr 2022, gene heskett wrote:
Date: Mon, 18 Apr 2022 18:11:54 -0400
From: gene heskett
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] nother Q for Peter
On Monday, 18 April 2022 17:33:48 EDT Peter C. Wallace wrote:
On Mon, 18 Apr 2022, gene heskett wrote:
Date: Mon, 18 Apr 2022 16:37:48 -0400
From: gene heskett
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: Re: [Emc-users] nother Q
for Peter
On Monday, 18 April 2022 13:49:36 EDT gene heskett wrote:
On Monday, 18 April 2022 10:38:10 EDT Peter C. Wallace wrote:
On Mon, 18 Apr 2022, gene heskett wrote:
Date: Mon, 18 Apr 2022 04:19:27 -0400
From: gene heskett
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: [Emc-users] nother Q
for
Peter
Greetings;
How does the A/D on a 7i76D handle overvoltage? I'm considering a
long
tailed vfet pair with a 22k pullup to 42 volts. Does it just goto
full
scale at an $FF output, or will that blow something?
Full scale (inputs will take up to 100V indefinitely)
but adjacent inputs may read incorrectly if more than about
50V is suppled (due to current injection into parasitic
transistors related to the input ESD diodes of the CPU)
Excellent news Peter, I'm off to the races then.
But the starting gate won't open. I've re-read 7i76man.pdf several
times w/o the method of actually getting the digital value from one
of the 4 ports it works for. I have something tied to port-0, but I
think that may be a leftover from before I used the hy-485 module to
drive the spindle, so it looks like I should figure on using port-1.
How does reading an A/D derived digital value from port-1 get done in
the hal file?
Thank you.
Cheers, Gene Heskett.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law
respectable. - Louis D. Brandeis
The pins are:
hm2_5i25.0.7i76.0.0.analogin0
hm2_5i25.0.7i76.0.0.analogin1
hm2_5i25.0.7i76.0.0.analogin2
hm2_5i25.0.7i76.0.0.analogin3
You need to set the 7I76 in a mode that enables the analog inputs
(modes 1 or 2)
That sounds like it should be a setp, but it doesn't jump off of page 31
at me. Looking at the analogin0, I'm seeing a flash of noise at about 1
second intervals which I assume is the update rate. And I don't
currently have any setp's that seem to address the 7i76. Do I need to dl
a fresh copy of the 7i76man.pdf? I've had this one for 3, maybe 4 years.
The analog update rate is the servo thread rate (the aquisition rate is about 50
KHz)
If you have a analogin0 pin you are have already setup a mode that
includes analog input
(the mode setup is done in the sserial_port_0=NNN line in the driver command
line)
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
Peter Wallace
Mesa Electronics
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
.
Cheers, Gene Heskett.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
Peter Wallace
Mesa Electronics
(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination.
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] nother Q for Peter
On Monday, 18 April 2022 17:33:48 EDT Peter C. Wallace wrote: > On Mon, 18 Apr 2022, gene heskett wrote: > > Date: Mon, 18 Apr 2022 16:37:48 -0400 > > From: gene heskett > > Reply-To: "Enhanced Machine Controller (EMC)" > > > > > > > > To: "Enhanced Machine Controller (EMC)" > > Subject: Re: [Emc-users] nother Q > > for Peter > > > > On Monday, 18 April 2022 13:49:36 EDT gene heskett wrote: > >> On Monday, 18 April 2022 10:38:10 EDT Peter C. Wallace wrote: > >>> On Mon, 18 Apr 2022, gene heskett wrote: > Date: Mon, 18 Apr 2022 04:19:27 -0400 > From: gene heskett > Reply-To: "Enhanced Machine Controller (EMC)" > > > > To: "Enhanced Machine Controller (EMC)" > Subject: [Emc-users] nother Q > for > Peter > > Greetings; > > How does the A/D on a 7i76D handle overvoltage? I'm considering a > long > tailed vfet pair with a 22k pullup to 42 volts. Does it just goto > full > scale at an $FF output, or will that blow something? > >>> > >>> Full scale (inputs will take up to 100V indefinitely) > >>> but adjacent inputs may read incorrectly if more than about > >>> 50V is suppled (due to current injection into parasitic > >>> transistors related to the input ESD diodes of the CPU) > >> > >> Excellent news Peter, I'm off to the races then. > > > > But the starting gate won't open. I've re-read 7i76man.pdf several > > times w/o the method of actually getting the digital value from one > > of the 4 ports it works for. I have something tied to port-0, but I > > think that may be a leftover from before I used the hy-485 module to > > drive the spindle, so it looks like I should figure on using port-1. > > > > How does reading an A/D derived digital value from port-1 get done in > > the hal file? > > > > Thank you. > > > > Cheers, Gene Heskett. > > -- > > "There are four boxes to be used in defense of liberty: > > soap, ballot, jury, and ammo. Please use in that order." > > -Ed Howdershelt (Author, 1940) > > If we desire respect for the law, we must first make the law > > respectable. - Louis D. Brandeis > > The pins are: > > hm2_5i25.0.7i76.0.0.analogin0 > hm2_5i25.0.7i76.0.0.analogin1 > hm2_5i25.0.7i76.0.0.analogin2 > hm2_5i25.0.7i76.0.0.analogin3 > > > You need to set the 7I76 in a mode that enables the analog inputs > (modes 1 or 2) > That sounds like it should be a setp, but it doesn't jump off of page 31 at me. Looking at the analogin0, I'm seeing a flash of noise at about 1 second intervals which I assume is the update rate. And I don't currently have any setp's that seem to address the 7i76. Do I need to dl a fresh copy of the 7i76man.pdf? I've had this one for 3, maybe 4 years. > > ___ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > Peter Wallace > Mesa Electronics > > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > . Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] nother Q for Peter
On Mon, 18 Apr 2022, gene heskett wrote: Date: Mon, 18 Apr 2022 16:37:48 -0400 From: gene heskett Reply-To: "Enhanced Machine Controller (EMC)" To: "Enhanced Machine Controller (EMC)" Subject: Re: [Emc-users] nother Q for Peter On Monday, 18 April 2022 13:49:36 EDT gene heskett wrote: On Monday, 18 April 2022 10:38:10 EDT Peter C. Wallace wrote: On Mon, 18 Apr 2022, gene heskett wrote: Date: Mon, 18 Apr 2022 04:19:27 -0400 From: gene heskett Reply-To: "Enhanced Machine Controller (EMC)" To: "Enhanced Machine Controller (EMC)" Subject: [Emc-users] nother Q for Peter Greetings; How does the A/D on a 7i76D handle overvoltage? I'm considering a long tailed vfet pair with a 22k pullup to 42 volts. Does it just goto full scale at an $FF output, or will that blow something? Full scale (inputs will take up to 100V indefinitely) but adjacent inputs may read incorrectly if more than about 50V is suppled (due to current injection into parasitic transistors related to the input ESD diodes of the CPU) Excellent news Peter, I'm off to the races then. But the starting gate won't open. I've re-read 7i76man.pdf several times w/o the method of actually getting the digital value from one of the 4 ports it works for. I have something tied to port-0, but I think that may be a leftover from before I used the hy-485 module to drive the spindle, so it looks like I should figure on using port-1. How does reading an A/D derived digital value from port-1 get done in the hal file? Thank you. Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis The pins are: hm2_5i25.0.7i76.0.0.analogin0 hm2_5i25.0.7i76.0.0.analogin1 hm2_5i25.0.7i76.0.0.analogin2 hm2_5i25.0.7i76.0.0.analogin3 You need to set the 7I76 in a mode that enables the analog inputs (modes 1 or 2) ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users Peter Wallace Mesa Electronics ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] nother Q for Peter
On Monday, 18 April 2022 13:49:36 EDT gene heskett wrote: > On Monday, 18 April 2022 10:38:10 EDT Peter C. Wallace wrote: > > On Mon, 18 Apr 2022, gene heskett wrote: > > > Date: Mon, 18 Apr 2022 04:19:27 -0400 > > > From: gene heskett > > > Reply-To: "Enhanced Machine Controller (EMC)" > > > > > > > > > > > > To: "Enhanced Machine Controller (EMC)" > > > Subject: [Emc-users] nother Q for > > > Peter > > > > > > Greetings; > > > > > > How does the A/D on a 7i76D handle overvoltage? I'm considering a > > > long > > > tailed vfet pair with a 22k pullup to 42 volts. Does it just goto > > > full > > > scale at an $FF output, or will that blow something? > > > > Full scale (inputs will take up to 100V indefinitely) > > but adjacent inputs may read incorrectly if more than about > > 50V is suppled (due to current injection into parasitic > > transistors related to the input ESD diodes of the CPU) > > Excellent news Peter, I'm off to the races then. But the starting gate won't open. I've re-read 7i76man.pdf several times w/o the method of actually getting the digital value from one of the 4 ports it works for. I have something tied to port-0, but I think that may be a leftover from before I used the hy-485 module to drive the spindle, so it looks like I should figure on using port-1. How does reading an A/D derived digital value from port-1 get done in the hal file? Thank you. Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] nother Q for Peter
On Monday, 18 April 2022 10:38:10 EDT Peter C. Wallace wrote:
> On Mon, 18 Apr 2022, gene heskett wrote:
> > Date: Mon, 18 Apr 2022 04:19:27 -0400
> > From: gene heskett
> > Reply-To: "Enhanced Machine Controller (EMC)"
> >
> >
> >
> > To: "Enhanced Machine Controller (EMC)"
> > Subject: [Emc-users] nother Q for
> > Peter
> >
> > Greetings;
> >
> > How does the A/D on a 7i76D handle overvoltage? I'm considering a
> > long
> > tailed vfet pair with a 22k pullup to 42 volts. Does it just goto
> > full
> > scale at an $FF output, or will that blow something?
>
> Full scale (inputs will take up to 100V indefinitely)
> but adjacent inputs may read incorrectly if more than about
> 50V is suppled (due to current injection into parasitic
> transistors related to the input ESD diodes of the CPU)
Excellent news Peter, I'm off to the races then. I think there's current
gain enough in a TIP-120 60 volt darlington to make my idea work. $2.95 a
10 pack from MPJA.com. With a long-tailed pair, useing the right one for
a threshold adjuster, so it turns down a pwmgen starting at around 16
psia, it ought to work just dandy.
What value R to 42 volts would be full scale, effectively limiting it to
36 and change (full scale) at the input? In that manner the ESD diodes
should disappear. Dead accurate isn't required, just decent
repeatability.
Thank you, stay well, both of you.
> > Cheers, Gene Heskett.
> > --
> > "There are four boxes to be used in defense of liberty:
> > soap, ballot, jury, and ammo. Please use in that order."
> > -Ed Howdershelt (Author, 1940)
> > If we desire respect for the law, we must first make the law
> > respectable. - Louis D. Brandeis
> >
> >
> >
> >
> >
> > ___
> > Emc-users mailing list
> > Emc-users@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/emc-users
>
> Peter Wallace
> Mesa Electronics
>
> (\__/)
> (='.'=) This is Bunny. Copy and paste bunny into your
> (")_(") signature to help him gain world domination.
>
>
>
> ___
> Emc-users mailing list
> Emc-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/emc-users
> .
Cheers, Gene Heskett.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
On Monday, 18 April 2022 10:34:45 EDT Sam Sokolik wrote: > Yes - acme for z. (No key way). We need to make covers for x. I just inlaid a strip of paneling in the carriage slot in front the tool post base, ditto for the bottom below the screw. My drive is a new shaft and bearing in the front where the crank was. The rear is still open. And its open behind the tool post carrier when at center so I keep a rag taped to the rear of the tool post base. I have a rear cover for it, but have been too lazy to put it back on after finding the screw was long enough to touch it and had to mill a thin spot to clear the end of the screw. I had to get a 2NM motor for the front mount, the 3NM was too long to clear the bed casting. Even a 2 is overkill for that teeny screw, I think its an 8mm screw. Finding screws small enough for x drive on a lathe is difficult, the nuts are too big the clear the bed. It was real fun doing that on my 7x12, finally giving up and putting the motor on the rear, where its too heavy lifting the front vway so I had to do the kruger tapered gibs thing. That finally made a real lathe out of it. The motors I took off the 6040 are quite a bit smaller, but still big enough for the 7x12, so I may eventually put one of them on the back of the 7x12. If I don't fall over first, I'm 87 now. The older I get, the better I WAS. ;o) Take care and stay well Sam. Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] nother Q for Peter
On Mon, 18 Apr 2022, gene heskett wrote:
Date: Mon, 18 Apr 2022 04:19:27 -0400
From: gene heskett
Reply-To: "Enhanced Machine Controller (EMC)"
To: "Enhanced Machine Controller (EMC)"
Subject: [Emc-users] nother Q for Peter
Greetings;
How does the A/D on a 7i76D handle overvoltage? I'm considering a long
tailed vfet pair with a 22k pullup to 42 volts. Does it just goto full
scale at an $FF output, or will that blow something?
Full scale (inputs will take up to 100V indefinitely)
but adjacent inputs may read incorrectly if more than about
50V is suppled (due to current injection into parasitic
transistors related to the input ESD diodes of the CPU)
Cheers, Gene Heskett.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
Peter Wallace
Mesa Electronics
(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination.
___
Emc-users mailing list
Emc-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
Yes - acme for z. (No key way). We need to make covers for x. It would be nice to get a ball screw for z but have not found one yet. The acme will work fine for now. On Mon, Apr 18, 2022, 6:54 AM gene heskett wrote: > On Monday, 18 April 2022 04:48:37 EDT John Dammeyer wrote: > > I was asking Sam. From his video it looks like ACME. > > Yup, looks like the OEM screw complete with keyway. Looks like a Ball on > x though. And its wide open to be wrecked by swarf. > > Needs a pair of smaller bellows similar to what I did for z on the > Sheldon. Cheap 1450mm long c7 grade screw, works good enough for the > girls I go with. Under $200 delivered on my front deck. If its off by the > C7 grade specs, I haven't found where yet. I bought a 12" digital caliper > & checked the first foot from the chuck, its as accurate as the caliper. > I'm not equipt to do interferomter measurements. > > > > -Original Message- > > > From: gene heskett [mailto:ghesk...@shentel.net] > > > Sent: April-18-22 12:59 AM > > > To: Enhanced Machine Controller (EMC) > > > Subject: Re: [Emc-users] Because I can't seem to finish anything... > > > Nebel lathe conversion.> > > > On Sunday, 17 April 2022 22:19:58 EDT John Dammeyer wrote: > > > > Nice! > > > > > > > > Was the Z axis lead screw also a ball screw or did you leave that > > > > as > > > > ACME? Has it an anti-backlash nut if still ACME? John > > > > > > Who are you asking John? > > > > > > > > -Original Message- > > > > > From: Sam Sokolik [mailto:samco...@gmail.com] > > > > > Sent: April-17-22 6:47 PM > > > > > To: Enhanced Machine Controller (EMC) > > > > > Subject: Re: [Emc-users] Because I can't seem to finish > > > > > anything... > > > > > Nebel lathe conversion. > > > > > > > > > > Mark - I will have to use that as an excuse.. :) > > > > > > > > > > 2 axis moving! > > > > > > > > > > https://www.youtube.com/watch?v=tItdEEDYy2g > > > > > > > > > > On Sun, Apr 10, 2022 at 11:10 AM Mark Johnsen > > > > > > wrote: > > > > > > Cool! > > > > > > > > > > > > On a side note, I just finished listening to Walter Isaacson's > > > > > > biography on Leonardo Da Vinci and wanted to inform you that > > > > > > you're in good company because he had serious issues finishing > > > > > > projects. Of course, humanity got the worse end of that by him > > > > > > not publishing his work. But, when you start to dwell on a > > > > > > project that you haven't finished, just think, "Oh yeah, > > > > > > Leonardo > > > > > > didn't finish many of his projects either." > > > > > > > > > > > > On Sat, Apr 9, 2022 at 7:25 PM gene heskett > > > > > > > > > > > > wrote: > > > > > > > On Saturday, 9 April 2022 21:27:26 EDT Sam Sokolik wrote: > > > > > > > > X is almost ready to test... > > > > > > > > > > > > > > > > https://photos.app.goo.gl/GzyjvC49J2rTXyaG8 > > > > > > > > > > > > > > Looking good Sam, similar to what I did to my Sheldon, but my > > > > > > > motor mount is a sliding plate on the front of a much bigger > > > > > > > 1/2" apron so I can screw drive the belt tension, and with > > > > > > > stepper/servo's, only a 2/1 ratio stepdown. X speed max is > > > > > > > just > > > > > > > over 60" a minute with a 2NM 3 phase stepper motor. The rest > > > > > > > of > > > > > > > my apron has the encoder dials to drive it by hand. Seemed > > > > > > > the > > > > > > > ideal place to put them. Put them near where the cranks used > > > > > > > to > > > > > > > be. Feels natural. I sealed up the tunnel the x screw is in, > > > > > > > top and bottom so swarf can't get to it unless its past > > > > > > > center > > > > > > > going in. And I put bellows on the z screw on both sides of > > > > > > > the > > > > > > > nut for its swarf protection. I even drilled two of the nuts > > > > > > > 6 > > > > > > > holes all the way thru so rapid z movements could let the air > > > > > > > get from one bellows to the other w/o sucking in > > > > > > > contaminents. > > > > > > > > > > > > > > > On Thu, Apr 7, 2022 at 8:18 AM Sam Sokolik > > > > > > > > > > > > > > wrote: > > > > > > > > > Most likely it needs that movement because it can spin 30 > > > > > > > > > + > > > > > > > > > inches ;) > > > > > > > > > > > > > > If it can spin 30", what is the max spindle speed? > > > > > > > > > > > > > > > > sam > > > > > > > > > > > > > > > > > > On Thu, Apr 7, 2022 at 5:46 AM andy pugh > > > > > > > > > > > > > > > wrote: > > > > > > > > >> On Wed, 6 Apr 2022 at 20:22, Sam Sokolik > > > > > > > > >> > > > > > > > > > > > > wrote: > > > > > > > > >> > The cross slide has around 17 inches of travel... > > > > > > > > >> > Crazy.. > > > > > > > > >> > > > > > > > > >> For gang-tooling perhaps? > > > > > > Cheers, Gene Heskett. > > > -- > > > > > > "There are four boxes to be used in defense of liberty: > > > soap, ballot, jury, and ammo. Please use in that order." > > > > > > -Ed Howdershelt (Author, 1940) > > > If we desire respect for the law, we must first make the law > > >
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
On Monday, 18 April 2022 04:48:37 EDT John Dammeyer wrote: > I was asking Sam. From his video it looks like ACME. Yup, looks like the OEM screw complete with keyway. Looks like a Ball on x though. And its wide open to be wrecked by swarf. Needs a pair of smaller bellows similar to what I did for z on the Sheldon. Cheap 1450mm long c7 grade screw, works good enough for the girls I go with. Under $200 delivered on my front deck. If its off by the C7 grade specs, I haven't found where yet. I bought a 12" digital caliper & checked the first foot from the chuck, its as accurate as the caliper. I'm not equipt to do interferomter measurements. > > -Original Message- > > From: gene heskett [mailto:ghesk...@shentel.net] > > Sent: April-18-22 12:59 AM > > To: Enhanced Machine Controller (EMC) > > Subject: Re: [Emc-users] Because I can't seem to finish anything... > > Nebel lathe conversion.> > > On Sunday, 17 April 2022 22:19:58 EDT John Dammeyer wrote: > > > Nice! > > > > > > Was the Z axis lead screw also a ball screw or did you leave that > > > as > > > ACME? Has it an anti-backlash nut if still ACME? John > > > > Who are you asking John? > > > > > > -Original Message- > > > > From: Sam Sokolik [mailto:samco...@gmail.com] > > > > Sent: April-17-22 6:47 PM > > > > To: Enhanced Machine Controller (EMC) > > > > Subject: Re: [Emc-users] Because I can't seem to finish > > > > anything... > > > > Nebel lathe conversion. > > > > > > > > Mark - I will have to use that as an excuse.. :) > > > > > > > > 2 axis moving! > > > > > > > > https://www.youtube.com/watch?v=tItdEEDYy2g > > > > > > > > On Sun, Apr 10, 2022 at 11:10 AM Mark Johnsen > > > > wrote: > > > > > Cool! > > > > > > > > > > On a side note, I just finished listening to Walter Isaacson's > > > > > biography on Leonardo Da Vinci and wanted to inform you that > > > > > you're in good company because he had serious issues finishing > > > > > projects. Of course, humanity got the worse end of that by him > > > > > not publishing his work. But, when you start to dwell on a > > > > > project that you haven't finished, just think, "Oh yeah, > > > > > Leonardo > > > > > didn't finish many of his projects either." > > > > > > > > > > On Sat, Apr 9, 2022 at 7:25 PM gene heskett > > > > > > > > > wrote: > > > > > > On Saturday, 9 April 2022 21:27:26 EDT Sam Sokolik wrote: > > > > > > > X is almost ready to test... > > > > > > > > > > > > > > https://photos.app.goo.gl/GzyjvC49J2rTXyaG8 > > > > > > > > > > > > Looking good Sam, similar to what I did to my Sheldon, but my > > > > > > motor mount is a sliding plate on the front of a much bigger > > > > > > 1/2" apron so I can screw drive the belt tension, and with > > > > > > stepper/servo's, only a 2/1 ratio stepdown. X speed max is > > > > > > just > > > > > > over 60" a minute with a 2NM 3 phase stepper motor. The rest > > > > > > of > > > > > > my apron has the encoder dials to drive it by hand. Seemed > > > > > > the > > > > > > ideal place to put them. Put them near where the cranks used > > > > > > to > > > > > > be. Feels natural. I sealed up the tunnel the x screw is in, > > > > > > top and bottom so swarf can't get to it unless its past > > > > > > center > > > > > > going in. And I put bellows on the z screw on both sides of > > > > > > the > > > > > > nut for its swarf protection. I even drilled two of the nuts > > > > > > 6 > > > > > > holes all the way thru so rapid z movements could let the air > > > > > > get from one bellows to the other w/o sucking in > > > > > > contaminents. > > > > > > > > > > > > > On Thu, Apr 7, 2022 at 8:18 AM Sam Sokolik > > > > > > > > > > > wrote: > > > > > > > > Most likely it needs that movement because it can spin 30 > > > > > > > > + > > > > > > > > inches ;) > > > > > > > > > > > > If it can spin 30", what is the max spindle speed? > > > > > > > > > > > > > > sam > > > > > > > > > > > > > > > > On Thu, Apr 7, 2022 at 5:46 AM andy pugh > > > > > > > > > > > > wrote: > > > > > > > >> On Wed, 6 Apr 2022 at 20:22, Sam Sokolik > > > > > > > >> > > > > > > > > > > wrote: > > > > > > > >> > The cross slide has around 17 inches of travel... > > > > > > > >> > Crazy.. > > > > > > > >> > > > > > > > >> For gang-tooling perhaps? > > > > Cheers, Gene Heskett. > > -- > > > > "There are four boxes to be used in defense of liberty: > > soap, ballot, jury, and ammo. Please use in that order." > > > > -Ed Howdershelt (Author, 1940) > > If we desire respect for the law, we must first make the law > > respectable.> > > - Louis D. Brandeis > > > > ___ > > Emc-users mailing list > > Emc-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/emc-users > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users > . Cheers, Gene Heskett. -- "There are four
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
I was asking Sam. From his video it looks like ACME. > -Original Message- > From: gene heskett [mailto:ghesk...@shentel.net] > Sent: April-18-22 12:59 AM > To: Enhanced Machine Controller (EMC) > Subject: Re: [Emc-users] Because I can't seem to finish anything... Nebel > lathe conversion. > > On Sunday, 17 April 2022 22:19:58 EDT John Dammeyer wrote: > > Nice! > > > > Was the Z axis lead screw also a ball screw or did you leave that as > > ACME? Has it an anti-backlash nut if still ACME? John > > > Who are you asking John? > > > > -Original Message- > > > From: Sam Sokolik [mailto:samco...@gmail.com] > > > Sent: April-17-22 6:47 PM > > > To: Enhanced Machine Controller (EMC) > > > Subject: Re: [Emc-users] Because I can't seem to finish anything... > > > Nebel lathe conversion. > > > > > > Mark - I will have to use that as an excuse.. :) > > > > > > 2 axis moving! > > > > > > https://www.youtube.com/watch?v=tItdEEDYy2g > > > > > > On Sun, Apr 10, 2022 at 11:10 AM Mark Johnsen > wrote: > > > > Cool! > > > > > > > > On a side note, I just finished listening to Walter Isaacson's > > > > biography on Leonardo Da Vinci and wanted to inform you that > > > > you're in good company because he had serious issues finishing > > > > projects. Of course, humanity got the worse end of that by him > > > > not publishing his work. But, when you start to dwell on a > > > > project that you haven't finished, just think, "Oh yeah, Leonardo > > > > didn't finish many of his projects either." > > > > > > > > On Sat, Apr 9, 2022 at 7:25 PM gene heskett > wrote: > > > > > On Saturday, 9 April 2022 21:27:26 EDT Sam Sokolik wrote: > > > > > > X is almost ready to test... > > > > > > > > > > > > https://photos.app.goo.gl/GzyjvC49J2rTXyaG8 > > > > > > > > > > Looking good Sam, similar to what I did to my Sheldon, but my > > > > > motor mount is a sliding plate on the front of a much bigger > > > > > 1/2" apron so I can screw drive the belt tension, and with > > > > > stepper/servo's, only a 2/1 ratio stepdown. X speed max is just > > > > > over 60" a minute with a 2NM 3 phase stepper motor. The rest of > > > > > my apron has the encoder dials to drive it by hand. Seemed the > > > > > ideal place to put them. Put them near where the cranks used to > > > > > be. Feels natural. I sealed up the tunnel the x screw is in, > > > > > top and bottom so swarf can't get to it unless its past center > > > > > going in. And I put bellows on the z screw on both sides of the > > > > > nut for its swarf protection. I even drilled two of the nuts 6 > > > > > holes all the way thru so rapid z movements could let the air > > > > > get from one bellows to the other w/o sucking in contaminents. > > > > > > > > > > > On Thu, Apr 7, 2022 at 8:18 AM Sam Sokolik > wrote: > > > > > > > Most likely it needs that movement because it can spin 30 + > > > > > > > inches ;) > > > > > > > > > > If it can spin 30", what is the max spindle speed? > > > > > > > > > > > > sam > > > > > > > > > > > > > > On Thu, Apr 7, 2022 at 5:46 AM andy pugh > wrote: > > > > > > >> On Wed, 6 Apr 2022 at 20:22, Sam Sokolik > > > > > > >> > > > > > > > > wrote: > > > > > > >> > The cross slide has around 17 inches of travel... Crazy.. > > > > > > >> > > > > > > >> For gang-tooling perhaps? > > > Cheers, Gene Heskett. > -- > "There are four boxes to be used in defense of liberty: > soap, ballot, jury, and ammo. Please use in that order." > -Ed Howdershelt (Author, 1940) > If we desire respect for the law, we must first make the law respectable. > - Louis D. Brandeis > > > > > > ___ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] nother Q for Peter
Greetings; How does the A/D on a 7i76D handle overvoltage? I'm considering a long tailed vfet pair with a 22k pullup to 42 volts. Does it just goto full scale at an $FF output, or will that blow something? Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Because I can't seem to finish anything... Nebel lathe conversion.
On Sunday, 17 April 2022 22:19:58 EDT John Dammeyer wrote: > Nice! > > Was the Z axis lead screw also a ball screw or did you leave that as > ACME? Has it an anti-backlash nut if still ACME? John > Who are you asking John? > > -Original Message- > > From: Sam Sokolik [mailto:samco...@gmail.com] > > Sent: April-17-22 6:47 PM > > To: Enhanced Machine Controller (EMC) > > Subject: Re: [Emc-users] Because I can't seem to finish anything... > > Nebel lathe conversion. > > > > Mark - I will have to use that as an excuse.. :) > > > > 2 axis moving! > > > > https://www.youtube.com/watch?v=tItdEEDYy2g > > > > On Sun, Apr 10, 2022 at 11:10 AM Mark Johnsen wrote: > > > Cool! > > > > > > On a side note, I just finished listening to Walter Isaacson's > > > biography on Leonardo Da Vinci and wanted to inform you that > > > you're in good company because he had serious issues finishing > > > projects. Of course, humanity got the worse end of that by him > > > not publishing his work. But, when you start to dwell on a > > > project that you haven't finished, just think, "Oh yeah, Leonardo > > > didn't finish many of his projects either." > > > > > > On Sat, Apr 9, 2022 at 7:25 PM gene heskett wrote: > > > > On Saturday, 9 April 2022 21:27:26 EDT Sam Sokolik wrote: > > > > > X is almost ready to test... > > > > > > > > > > https://photos.app.goo.gl/GzyjvC49J2rTXyaG8 > > > > > > > > Looking good Sam, similar to what I did to my Sheldon, but my > > > > motor mount is a sliding plate on the front of a much bigger > > > > 1/2" apron so I can screw drive the belt tension, and with > > > > stepper/servo's, only a 2/1 ratio stepdown. X speed max is just > > > > over 60" a minute with a 2NM 3 phase stepper motor. The rest of > > > > my apron has the encoder dials to drive it by hand. Seemed the > > > > ideal place to put them. Put them near where the cranks used to > > > > be. Feels natural. I sealed up the tunnel the x screw is in, > > > > top and bottom so swarf can't get to it unless its past center > > > > going in. And I put bellows on the z screw on both sides of the > > > > nut for its swarf protection. I even drilled two of the nuts 6 > > > > holes all the way thru so rapid z movements could let the air > > > > get from one bellows to the other w/o sucking in contaminents. > > > > > > > > > On Thu, Apr 7, 2022 at 8:18 AM Sam Sokolik wrote: > > > > > > Most likely it needs that movement because it can spin 30 + > > > > > > inches ;) > > > > > > > > If it can spin 30", what is the max spindle speed? > > > > > > > > > > sam > > > > > > > > > > > > On Thu, Apr 7, 2022 at 5:46 AM andy pugh wrote: > > > > > >> On Wed, 6 Apr 2022 at 20:22, Sam Sokolik > > > > > >> > > > > > > wrote: > > > > > >> > The cross slide has around 17 inches of travel... Crazy.. > > > > > >> > > > > > >> For gang-tooling perhaps? Cheers, Gene Heskett. -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author, 1940) If we desire respect for the law, we must first make the law respectable. - Louis D. Brandeis ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
