Re: [Emc-users] The Code Of Conduct Fait Accompli
On 8/1/21 11:01 PM, Bari wrote: Can we just call it -isms and -ists doing stuff? nah, terminology/definitions are important, I'd settle to call it a cancer of society though, and "stuff" them destroying it. On 8/1/21 11:32 PM, R C wrote: nah.. it's just a bunch of socialists/commies that discovered they too can claim the right to tell/demand etc. what others can say and do etc. it's a fascist/marxist global trend ___ 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
Re: [Emc-users] The Code Of Conduct Fait Accompli
Can we just call it -isms and -ists doing stuff? On 8/1/21 11:32 PM, R C wrote: nah.. it's just a bunch of socialists/commies that discovered they too can claim the right to tell/demand etc. what others can say and do etc. it's a fascist/marxist global trend ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] The Code Of Conduct Fait Accompli
On 8/1/21 10:09 PM, Curtis Dutton wrote: I find it curious that we have a COC followed up by the "master" question in short succession. Am I mistaken that these events as somehow related? Just asking for a friend. I cannot think of a recent time that I have read an email on emcdev or emcusers that I thought to myself "something must be done about this" nor can I think of a time in the distant past where "things are getting out of hand here." nah.. it's just a bunch of socialists/commies that discovered they too can claim the right to tell/demand etc. what others can say and do etc. it's a fascist/marxist global trend Indeed I cannot think of a time where I found myself thinking "I don't think that person should have been banned." I would much prefer that admins be free to censure behavior based upon their own judgment. From what I can remember each of our admins have exercised their judgment quite well. They have performed their duties in general good faith without any proscribed policy. When we formalize commom sense rules it weakens faithful authoriy and provides an envelope within which corrupt authority can operate. I fear that policy may allow us to hide behind words, twist definitions and ultimately abuse power. I would strongly suggest that we make that small U-turn now and continue on the very productive path that we were previously following. On Sat, Jul 24, 2021, 8:22 AM Mark wrote: You really should be say it hasn't yet. Mark On 7/23/21 11:52 PM, Valerio Bellizzomi wrote: Since you replied to my post: the topic is closed for me, I accept the CoC and move on, it doesn't affect my ability to be part of the LinuxCNC community nor my ability to share my work here and ask questions. Kind regards. ___ 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 mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] The Code Of Conduct Fait Accompli
Oh that "master" question was on the dev list. Just us plebs in here. On 8/1/21 11:09 PM, Curtis Dutton wrote: I find it curious that we have a COC followed up by the "master" question in short succession. Am I mistaken that these events as somehow related? ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] The Code Of Conduct Fait Accompli
I find it curious that we have a COC followed up by the "master" question in short succession. Am I mistaken that these events as somehow related? Just asking for a friend. I cannot think of a recent time that I have read an email on emcdev or emcusers that I thought to myself "something must be done about this" nor can I think of a time in the distant past where "things are getting out of hand here." Indeed I cannot think of a time where I found myself thinking "I don't think that person should have been banned." I would much prefer that admins be free to censure behavior based upon their own judgment. From what I can remember each of our admins have exercised their judgment quite well. They have performed their duties in general good faith without any proscribed policy. When we formalize commom sense rules it weakens faithful authoriy and provides an envelope within which corrupt authority can operate. I fear that policy may allow us to hide behind words, twist definitions and ultimately abuse power. I would strongly suggest that we make that small U-turn now and continue on the very productive path that we were previously following. On Sat, Jul 24, 2021, 8:22 AM Mark wrote: > You really should be say it hasn't yet. > > Mark > > On 7/23/21 11:52 PM, Valerio Bellizzomi wrote: > > Since you replied to my post: the topic is closed for me, I accept the > > CoC and move on, it doesn't affect my ability to be part of the > > LinuxCNC community nor my ability to share my work here and ask > > questions. > > > > Kind regards. > > > > > ___ > 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
Re: [Emc-users] Emergeny stop, and maybe normal stop
I think the main thing about estop is that A. When hitting E-Stop all movement stops ASAP. B. There is no chance things start moving again after the E-stop button is reset. Typically a separate "start" button must be pressed before things may start again. I recommend that these circuits be implemented in hardware. see therac-25 for how things could go wrong. https://en.m.wikipedia.org/wiki/Therac-25 I have seen machines that leave drives powered during estop but they have an enable loop that is part of the "hardware" estop loop. (the more modern machines tend to follow this pattern.) I have seen machines that completely cut power to all drives as part of the estop loop. It is up to you to engineer the appropriate way of handling this. I make these decisions by imagining that if my arm were caught in a particular machine which way of doing it would result in less injury. Big machines with lots of momentum would probably cause less harm with controlled powered stopping... cutting power on those drives may result in more harm. In a home machine with sketchy Chinese drives... cutting all power might be ultimately safer it all depnds. My father lost a hand in the 70's because he reached into a machine that did not follow this e-stop protocol. It is serious business even for small machines. Please take it seriously especially if people other than yourself will be operating them. -Curt On Sun, Aug 1, 2021, 3:47 PM Feral Engineer wrote: > With safety relays, they require an external reset after being released. > Every machine tool I've been on in the last 20 years operates in this > fashion. > > Release estop > Press "power on" or "drive enable" button to reset the pilz > > Phil T. > The Feral Engineer > > Check out my LinuxCNC tutorials, machine builds and other antics at > www.youtube.com/c/theferalengineer > > Help support my channel efforts and coffee addiction: > www.patreon.com/theferalengineer > > On Sun, Aug 1, 2021, 3:14 PM Nicklas SB Karlsson wrote: > > > Anyone have any experience or knowledge with emergency stop circuit? > > > > > > Connected a special safety relay breaking the 24 volt power supply > > driving the relays today. Then emergency stop have been pushed it have > > to be reset before relay is switched on again. > > > > > > Nicklas Karlsson > > > > > > > > ___ > > 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 mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
[Emc-users] trying to derate yaskawa drives from SGDB 20 VD drives to run size 15 motors
hey guys just getting into a big biesse machine i had mecholink drives and happened to have some standard +-10v VD drives that allow me to connect up easily problem is that the machine has 2 pics 15 size drives for the x and z axis while i have 20 size drives to replace them so question is had anyone ever downrated the drives the manual seems to say the the motors are only able to be changed within the same group which is a pain. but I am hoping that is not the case regards Andrew ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] Emergeny stop, and maybe normal stop
With safety relays, they require an external reset after being released. Every machine tool I've been on in the last 20 years operates in this fashion. Release estop Press "power on" or "drive enable" button to reset the pilz Phil T. The Feral Engineer Check out my LinuxCNC tutorials, machine builds and other antics at www.youtube.com/c/theferalengineer Help support my channel efforts and coffee addiction: www.patreon.com/theferalengineer On Sun, Aug 1, 2021, 3:14 PM Nicklas SB Karlsson wrote: > Anyone have any experience or knowledge with emergency stop circuit? > > > Connected a special safety relay breaking the 24 volt power supply > driving the relays today. Then emergency stop have been pushed it have > to be reset before relay is switched on again. > > > Nicklas Karlsson > > > > ___ > 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] Emergeny stop, and maybe normal stop
Anyone have any experience or knowledge with emergency stop circuit? Connected a special safety relay breaking the 24 volt power supply driving the relays today. Then emergency stop have been pushed it have to be reset before relay is switched on again. Nicklas Karlsson ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
