Re: [Emc-users] trying to connect a encoder from cnc spindle motor to schiender vfd

2020-02-13 Thread Chris Albertson
First step is to understand (1) what you have and (2) what you need. So, If the spindle revolves one time, How many cycles of the sin wave do you see? What is the amplitude of the sine wave (in volts peak to peak)? Does the amplitude change with the spindle speed?You need to either read

Re: [Emc-users] trying to connect a encoder from cnc spindle motor to schiender vfd

2020-02-13 Thread andrew beck
Chris. I'm still learning electronics. Could you expand a bit on this please. Maybe draw a napkin sketch of it. Sorry to be a bit slow on the uptake On Thu, Feb 13, 2020, 5:46 AM Chris Albertson wrote: > A sin and cos are 90 degrees apart. All you should need to do is threshold > the

Re: [Emc-users] Linuxcnc 2.9.0 hangs WORKS - NOT

2020-02-13 Thread Thomas D. Dean
On 2020-02-13 18:32, Jon Elson wrote: On 02/13/2020 04:53 PM, Thomas D. Dean wrote: I shut down the system last night. I can boot debian 7 (sda) and run linuxcnc from the distro. Everything comes up and seems normal. But, on boot into debian 10 (sdb), it drops into the console login.  I

Re: [Emc-users] Linuxcnc 2.9.0 hangs WORKS - NOT

2020-02-13 Thread Gene Heskett
On Thursday 13 February 2020 21:32:30 Jon Elson wrote: > On 02/13/2020 04:53 PM, Thomas D. Dean wrote: > > I shut down the system last night. > > > > I can boot debian 7 (sda) and run linuxcnc from the > > distro. Everything comes up and seems normal. > > > > But, on boot into debian 10 (sdb), it

Re: [Emc-users] Linuxcnc 2.9.0 hangs WORKS - NOT

2020-02-13 Thread Jon Elson
On 02/13/2020 04:53 PM, Thomas D. Dean wrote: I shut down the system last night. I can boot debian 7 (sda) and run linuxcnc from the distro. Everything comes up and seems normal. But, on boot into debian 10 (sdb), it drops into the console login. I can startx, but, the display is

Re: [Emc-users] Linuxcnc 2.9.0 hangs WORKS - NOT

2020-02-13 Thread Thomas D. Dean
I shut down the system last night. I can boot debian 7 (sda) and run linuxcnc from the distro. Everything comes up and seems normal. But, on boot into debian 10 (sdb), it drops into the console login. I can startx, but, the display is background only. I can switch to another console,

Re: [Emc-users] Open source CNC architecture --> mesa motion controller

2020-02-13 Thread N
> If " 'nix" were suddenly removed from the world the internet and a whole > bunch of other thing would disappear. > > Just to rock the boat: mesa (PCW) has a very nice motion controller for > an FPGA. 50 us cycle time, etc. "ALL" someone has to do is wrap  interp > and all the other

Re: [Emc-users] Open source CNC architecture

2020-02-13 Thread N
> > You care where the loop are because if they are in your PC you need a > > special PC with a special OS. > > Special PC? Pretty much any PC will work. I guess you could call the OS > special but not nearly as special as an RTOS on an external processor. > If you are really that terrified of

Re: [Emc-users] Open source CNC architecture

2020-02-13 Thread Gene Heskett
On Thursday 13 February 2020 12:51:26 Chris Albertson wrote: > When designing something new one must be VERY careful not to be one of > Henry Ford's customers.In an interview, someone asked Henry Ford > (Who was famous for saying "You can have the Model T in any color you > like, so long as

Re: [Emc-users] Question for Peter C.W.

2020-02-13 Thread Gene Heskett
On Thursday 13 February 2020 12:00:41 Jon Elson wrote: > On 02/12/2020 09:42 PM, Gene Heskett wrote: > > quadrature is way off, but what concerns me in that these ATS-667's > > are running on 5 volts, normally switch rail to rail. But at the > > hm2-encoder-0 a b or Index, I am seeing a decent

Re: [Emc-users] Linuxcnc 2.9.0 hangs WORKS

2020-02-13 Thread Gene Heskett
On Thursday 13 February 2020 09:57:08 andy pugh wrote: > On Thu, 13 Feb 2020 at 05:10, Thomas D. Dean > wrote: > > python-gtksourceview2_2.10.1-3_amd64.deb from > > > packages.debian.org/sid/amd64/python-gtksourceview2/download > > actual from > >

Re: [Emc-users] Open source CNC architecture

2020-02-13 Thread Chris Albertson
Yes, you do need a special PC. This means a PC you use for Linux CNC and not the one already on your desk. Again think of the normal ink-jet printer. Do you connect it to a special "printer PC" that is only used to drive inkjet printers? No. In most cases, the inkjet (or laser)

Re: [Emc-users] Question for Peter C.W.

2020-02-13 Thread Jon Elson
On 02/12/2020 09:42 PM, Gene Heskett wrote: quadrature is way off, but what concerns me in that these ATS-667's are running on 5 volts, normally switch rail to rail. But at the hm2-encoder-0 a b or Index, I am seeing a decent square wave, but its only 1 volt p-p. For all three ATS-667's.

Re: [Emc-users] Linuxcnc 2.9.0 hangs WORKS

2020-02-13 Thread andy pugh
On Thu, 13 Feb 2020 at 05:10, Thomas D. Dean wrote: python-gtksourceview2_2.10.1-3_amd64.deb from > packages.debian.org/sid/amd64/python-gtksourceview2/download > actual from > packages.debian.org/stretch/amd64/python-gtksourceview2/download > libvte-common_0.28.2-5_all.deb >

Re: [Emc-users] Open source CNC architecture

2020-02-13 Thread andy pugh
On Thu, 13 Feb 2020 at 03:48, Gregg Eshelman via Emc-users < emc-users@lists.sourceforge.net> wrote: I do have a ton of technical info, software etc for the Animatics > controller. Got it from a guy at Moog-Animatics who stayed after their > merger and still had an old backup drive. With that I'd

Re: [Emc-users] Question for Peter C.W.

2020-02-13 Thread Gene Heskett
On Thursday 13 February 2020 04:58:50 andy pugh wrote: > On Thu, 13 Feb 2020 at 03:44, Gene Heskett > wrote: > > hm2-encoder-0 a b or Index, I am seeing a decent square wave, but its > > > only 1 volt p-p. For all three ATS-667's. > > halscope shows logic 0 and logic 1. It has no way to display

Re: [Emc-users] Question for Peter C.W.

2020-02-13 Thread andy pugh
On Thu, 13 Feb 2020 at 03:44, Gene Heskett wrote: hm2-encoder-0 a b or Index, I am seeing a decent square wave, but its > only 1 volt p-p. For all three ATS-667's. halscope shows logic 0 and logic 1. It has no way to display voltage. -- atp "A motorcycle is a bicycle with a pandemonium