emc-users,
I acquired a Clausing 1450 NC lathe with the intention of LinuxCNC retrofit
about 6 years ago. I had all kinds of plans to make my own servo drives but
never really made much progress due to other priorities. Now I am getting
impatient and want to move forward. Currently this machine ha
On Tue, 24 Nov 2020 at 20:25, John Figie wrote:
> I am thinking that I want to use Mesa Etherent I/O cards and I want to use
> PID servo control.
>
> About the motors: These are Peerless DC motors (8 brushes). 66V max and
> 3.75 Amps Max. 800 RPM coupled directly to the ball screws with a servo
>
On Tuesday 24 November 2020 15:09:42 John Figie wrote:
> emc-users,
>
> I acquired a Clausing 1450 NC lathe with the intention of LinuxCNC
> retrofit about 6 years ago. I had all kinds of plans to make my own
> servo drives but never really made much progress due to other
> priorities. Now I am ge
Andy,
Thanks for the suggestions, I think that is really helpful. I will have to
look at the docs for this stuff.
As for the lathe it is actually a model 1550 NC even though the swing is
14". I have the manual for it and it has a complete parts breakdown with
illustrations. It looks like the orig
On Tuesday 24 November 2020 21:15:31 John Figie wrote:
> Andy,
>
> Thanks for the suggestions, I think that is really helpful. I will
> have to look at the docs for this stuff.
>
> As for the lathe it is actually a model 1550 NC even though the swing
> is 14". I have the manual for it and it has a
Andy,
I looked over the information you provided. It is not clear to me how the
7i80hv_16_sv.. "SV" sections work. The card provides a PWM output for the
7i40, the encoder feedback comes back to the 7i40 and then back to LinuxCNC
servo thread where the loop is closed? So is this then just a singl
On Wed, 25 Nov 2020 at 04:01, John Figie wrote:
> I looked over the information you provided. It is not clear to me how the
> 7i80hv_16_sv.. "SV" sections work. The card provides a PWM output for the
> 7i40, the encoder feedback comes back to the 7i40 and then back to LinuxCNC
> servo thread whe
Sent: Wednesday, November 25, 2020 4:20 AM
To: Enhanced Machine Controller (EMC)
Subject: Re: [Emc-users] Suggestions for a retrofit.
[EXTERNAL EMAIL] Be sure links are safe.
On Wed, 25 Nov 2020 at 04:01, John Figie wrote:
> I looked over the information you provided. It is not clear to me ho
I have used both and personally prefer a single torque loop. My lathe
runs a 7i80 in torque mode. The router uses velocity mode analog Bosch
drives with tachos. The mill runs Yaskawa drives that were configured in
velocity but now I run in torque mode.
It is easier to tune the outer loop in ve
It is good to hear about your experiences with the different ways to
control the motor. I tend to overthink and make things more complicated
than necessary sometimes. But just as a point of clarification, industrial
servo drives typically have 3 loops in cascade for position control. The
inner loop
On Fri, 27 Nov 2020 at 18:45, John Figie wrote:
> I think I am going to attempt to figure out what the parameters of my motor
> are and make a model to simulate my control loop. For hobby stuff I think
> LTspice may be good to model and simulate.
I am not sure what you hope to gain from a model.
On 11/27/20 10:52 AM, andy pugh wrote:
On Fri, 27 Nov 2020 at 18:45, John Figie wrote:
I think I am going to attempt to figure out what the parameters of my motor
are and make a model to simulate my control loop. For hobby stuff I think
LTspice may be good to model and simulate.
I am not s
It's been a long time and I have not made much progress. Except now I am
retired from my job as an electrical engineer. In my job I developed
industrial PMAC servo drives for a leading industrial controls manufacturer
located in Milwaukee. So to solve my servo amplifier problem I have decided
to bu
e-dev/stmbl
John Dammeyer
> -Original Message-
> From: John Figie [mailto:zephyr9...@gmail.com]
> Sent: September-13-21 1:32 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Suggestions for a retrofit.
>
> It's been a long time and I have not m
; > Sent: September-13-21 1:32 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Suggestions for a retrofit.
> >
> > It's been a long time and I have not made much progress. Except now I am
> > retired from my job as an electrical engineer.
com]
> Sent: September-13-21 3:39 PM
> To: Enhanced Machine Controller (EMC)
> Subject: Re: [Emc-users] Suggestions for a retrofit.
>
> John,
>
> Thanks for the info so it looks like the Mesa Smart Serial interface can be
> used with this drive. If I understand correctly the SS
: John Figie [mailto:zephyr9...@gmail.com]
> > Sent: September-13-21 3:39 PM
> > To: Enhanced Machine Controller (EMC)
> > Subject: Re: [Emc-users] Suggestions for a retrofit.
> >
> > John,
> >
> > Thanks for the info so it looks like the Mesa Smart Serial
troller (EMC)
> Subject: Re: [Emc-users] Suggestions for a retrofit.
>
> John,
>
> When STMBL is using the SSERIAL interface is the drive operating in
> position mode and receiving periodic position commands from the motion
> planner in LinuxCNC? If so, then I would think that the
> On 14 Sep 2021, at 22:04, John Figie wrote:
>
> so I am wondering how one would go about
> configuring LinuxCNC for the STMBL.
It’s surprisingly simple at the HAL end:
https://github.com/rene-dev/stmbl/blob/master/docs/linuxcnc/stmbl.hal
___
Emc
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