Granted.. I know these are pretty basic. You can usually find them for
under 10 dollars. They do work quite well though. I was working on some
youtube content and was goofing around with this bob and the printer port.
Setting up a pwmgen to test the analog out unearthed some things..
-It
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
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
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
On Tuesday 24 November 2020 16:08:41 Viesturs Lācis wrote:
> I have worked on that machine for some time now and what I have
> managed so far is that machine actually works nice, when I execute a
> sample g-code file. I saved it, edited to scale up 10x and then ran
> it. Everything is nice,
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
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
My first guess when I see oscillating velocity is that the PID controller
needs to be tuned.The simplest method is to set I and D to zero then
increase "P" until you notice some oscillation then back off some.It
seems that the first step is already done for you. If this is an open
loop
Are you using a USB keyboard and mouse? Wired or wireless? Do you have any
other USB devices connected to the PC?
Todd Zuercher
P. Graham Dunn Inc.
630 Henry Street
Dalton, Ohio 44618
Phone: (330)828-2105ext. 2031
-Original Message-
From: Viesturs Lācis
Sent: Tuesday, November 24,
I have worked on that machine for some time now and what I have
managed so far is that machine actually works nice, when I execute a
sample g-code file. I saved it, edited to scale up 10x and then ran
it. Everything is nice, rapids are smooth at 15 m/min.
The problem is that the velocity is
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
On Tuesday 24 November 2020 03:55:46 andy pugh wrote:
> On Tue, 24 Nov 2020 at 04:23, David Berndt wrote:
> > But does G64 Px operate in machine native units? or should it be
> > reset when changing between g20 and g21?
>
> The code here:
>
On Tue, 24 Nov 2020 at 04:23, David Berndt wrote:
> But does G64 Px operate in machine native units? or should it be reset
> when changing between g20 and g21?
The code here:
https://github.com/LinuxCNC/linuxcnc/blob/5cb4a18e0068fe430a2f2acbf219530f68c30c32/src/emc/task/emccanon.cc#L1199
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