[Emc-users] Damaged an SSR
I was using an SSR to turn on the spindle on my PCBMill. By mistake I reached over and turned off the switch on the router while it was turned on. When I tried to turn it back on, it no longer worked. I am hoping that I just blew out the SSR and not the 7i76e. I have a spare SSR. Is there any precaution I should take for the future? Alan Sent from my iPhone ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Linuxcnc build from scratch on RPi4
Andy, Evidently because I had installed linuxcnc2.9 from Debian, it wouldn’t allow it to be replaced with “an earlier version” linuxcnc2.9.0-pre1. I had to remove linuxcnc2.9-uspace and linuxcnc2.9-uspace-dev, before it would allow me to install the newer built from scratch. Alan Sent from my iPad > On Jul 28, 2023, at 9:46 AM, andy pugh wrote: > On Fri, 28 Jul 2023 at 15:26, condit.alan--- via Emc-users > wrote: >> >> I built linuxcnc 2.9 from scratch on my RPi4-8GB (Debian 12.1) When I tried >> to install it, it reported that the new install would break the install of >> Linuxcnc 2.9. Do I have to uninstall 2.9 before I can install the 2.9pre >> from source? > > If you are installing, then presumably you have created a .deb archive? > > So, yes, if you install your new .deb you will completely overwrite > the existing installation (but _not_ the data or config files) > > -- > atp > "A motorcycle is a bicycle with a pandemonium attachment and is > designed for the especial use of mechanical geniuses, daredevils and > lunatics." > — George Fitch, Atlanta Constitution Newspaper, 1912 ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] Linuxcnc build from scratch on RPi4
I built linuxcnc 2.9 from scratch on my RPi4-8GB (Debian 12.1) When I tried to install it, it reported that the new install would break the install of Linuxcnc 2.9. Do I have to uninstall 2.9 before I can install the 2.9pre from source? Alan Sent from my iPad ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Wiring Step Dir on KM5056E
Thanks Peter, I had to invert the direction on all of my axises to get it working like it used to. Now I just need to figure out if I was moving them in the correct directions or if I had just gotten used to them being wrong. Alan Sent from my iPad > On Jul 3, 2023, at 2:13 PM, Peter Wallace wrote: > On Mon, 3 Jul 2023, Alan Condit via Emc-users wrote: > >> Date: Mon, 3 Jul 2023 13:25:29 -0500 >> From: Alan Condit via Emc-users >> To: EMC-Users >> Cc: Alan Condit >> Subject: [Emc-users] Wiring Step Dir on KM5056E >> I am in the process of wiring up a new controller for RPi4 using 7c81 and >> 7i76. In the process of doing so, I discovered that I had wired my >> controller for my PCBMill with a 7i76E Step+ to KM5056E Pulse-, Step- to >> KM5056E Pulse+, Dir+ to KM5056E Dir-, and Dir- to KM5056 Dir+. >> It seems to run fine but, if I correct the connections Step+ to Pulse+, >> Step- to Pulse-, Dir+ to Dir+ and Dir- to Dir- what will happen. I donÿÿt >> really want to break something that works. >> >> Thanks in Advance, >> Alan >> >> >> ___ >> Emc-users mailing list >> Emc-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/emc-users > > > If it works now and the timings were correct, > it should make no difference. > > You would end up with longer active step pulse times > with inverted step polarity, though you may violate > the direction hold time if the hold time is set short > relative to the step pulse length. > > Peter Wallace > Mesa Electronics ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
