From: Ed <ate...@mwt.net <mailto:ate...@mwt.net> >
Subject: Re: [Emc-users] Question for larger machine users of LCNC To: emc-users@lists.sourceforge.net <mailto:emc-users@lists.sourceforge.net> Message-ID: <546f5312.6050...@mwt.net <mailto:546f5312.6050...@mwt.net> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/21/2014 08:40 AM, Jeff Johnson wrote: > This is a question for people using LCNC on larger machine tools. We have > been patiently waiting for jog while paused and it does not look like we are > getting it anytime soon. My question is how are others working around this? > For instance I am working on a job machining gears with hardened teeth and > we have to remove .250 form one face, roughing insert lasts about 2/3 of the > way through the roughing program and we have to rotate the insert. Feed hold > leaves us in a position too close to the part to change the insert. Our only > solution is to exit program and move tool away to rotate insert and restart > program from the beginning and cut air until we get back into the cut. We > try to run from line but even if we call constant surface feed in our MDI > spindle start the spindle runs at the cap RPM. > If it is a consistent amount and predictable wear, one Q&D solution is to program to rough to half the amount, stop spindle, move tool, M1 to pause, change insert, S to restart, move tool back and restart cut. On a similar note, I have a lathe with a 6T Fanuc control. It will let you pause, move tool, do whatever, and restart cut, The caveat is that the tool has to be moved back to the EXACT position that you moved it from at pause. Ed. Every control (Cincinnati, Heidenhain, Fagor) we have in the shop has this ability except LCNC I have 9 Turning centers and 6 CNC mills. I understand free comes at a cost LOL...I currently have three Turning centers running LCNC and a vertical machining center in process of getting LCNC and I just bought a couple of VTL's with Fanuc 6T controls that will be retrofitted with something. I am running big work and insert and or cutter failures are common. Constant and predictable just does not come to light in our job shop environment I am sure it would in a production situation and I would gladly program around it. I am grateful to have found this software and glad we took the time tackle the learning curve as we are better off for it but as I said earlier there is a cost to pay and in our case this is one of them. Even if we could call up our spindle parameters in MDI and run from line (being very careful) it would be much better but as I pointed out in another post the G96 is for some reason ignored from MDI even though the flag does come up. Jeff Johnson john...@superiorroll.com Superior Roll & Turning 734-279-1831 ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
