Re: [Emc-users] G2, G3 Arc Feed with rotaty axis
On 5 March 2013 18:17, Leonardo Marsaglia leonardomarsagli...@gmail.com wrote: So what I need to do, is to use G2 or G3 to move the follower showed in the picture following the trajectory of the crankpins combining the two linear axis simultaneously with the rotary axis of the crankshaft. I could program some arcs and I understand the way it works, but the thing is I don't see any examples using this with a synchronized rotary axis. I tried it in sim/axis/9-axis and it works fine. The movements all finish at the same time, so are perfectly synched. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G2, G3 Arc Feed with rotaty axis
Hello Andy. Now the machine is turned on and working but when I have a little time I will try with that configuration. The program line would be more or less like this right? (movement on X and Y, C is the rotary axis) G2 X0 Y0 C360 I10 J10 F10 P2 Would that give a two turn movement on the rotary axis? Because I need to do several turns, or do I need to offset the rotary axis to zero right after the G2 line and make a loop? Thanks! 2013/3/5 andy pugh bodge...@gmail.com On 5 March 2013 18:17, Leonardo Marsaglia leonardomarsagli...@gmail.com wrote: So what I need to do, is to use G2 or G3 to move the follower showed in the picture following the trajectory of the crankpins combining the two linear axis simultaneously with the rotary axis of the crankshaft. I could program some arcs and I understand the way it works, but the thing is I don't see any examples using this with a synchronized rotary axis. I tried it in sim/axis/9-axis and it works fine. The movements all finish at the same time, so are perfectly synched. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- *Leonardo Marsaglia*. -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G2, G3 Arc Feed with rotaty axis
On 5 March 2013 19:16, Leonardo Marsaglia leonardomarsagli...@gmail.com wrote: G2 X0 Y0 C360 I10 J10 F10 P2 Would that give a two turn movement on the rotary axis? No, that would be 2 rotations in XY and only one in C. G2 X0 Y0 C720 I10 J10 F10 P2 Is what you would need. -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G2, G3 Arc Feed with rotaty axis
On 5 March 2013 19:34, andy pugh bodge...@gmail.com wrote: G2 X0 Y0 C720 I10 J10 F10 P2 Is what you would need. I guess you are measuring crankpin roundness? -- atp If you can't fix it, you don't own it. http://www.ifixit.com/Manifesto -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G2, G3 Arc Feed with rotaty axis
On Tue, Mar 05, 2013 at 04:16:28PM -0300, Leonardo Marsaglia wrote: G2 X0 Y0 C360 I10 J10 F10 P2 Would that give a two turn movement on the rotary axis? Because I need to do several turns, or do I need to offset the rotary axis to zero right after the G2 line and make a loop? You've got the right idea. Some thoughts, looking here: http://linuxcnc.org/docs/html/gcode/gcode.html#sec:G2-G3-Arc You already found To program an arc that gives more than one full turn, use a P word specifying the number of full or partial turns of arc. and probably also If a line of code makes an arc and includes rotary axis motion, the rotary axes turn at a constant rate so that the rotary motion starts and finishes when the XYZ motion starts and finishes. Lines of this sort are hardly ever programmed. To do full circles, don't program X and Y words: No axis words and one or more offsets must be programmed for full circles. So, starting at X=0 Y=0 C=0 you could have 10 full turns like G2 C3600 J10 P10 No looping is required. -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G2, G3 Arc Feed with rotaty axis
Andy, from what I know from Leonardo, I druther guess that it's a case of zonal induction heating for hardening purposes. Peter Am 05.03.2013 20:35, schrieb andy pugh: On 5 March 2013 19:34, andy pugh bodge...@gmail.com wrote: G2 X0 Y0 C720 I10 J10 F10 P2 Is what you would need. I guess you are measuring crankpin roundness? -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G2, G3 Arc Feed with rotaty axis
Thanks a lot Andy and Chris! Very well explained, and it's easier than what I was thinking. Andy as Peter well said, this is to make a positioning system to do induction heating on crankshafts. Since all the journals need to be heated, and we're planning on making a production of at least 100 pieces per month initially, we're studying the possibility of heating the crankshaft like this so it can be automatic. The other way would be a split coil but this way is harder to automate, and we would like to make it fully automated. 2013/3/5 Peter Blodow p.blo...@dreki.de Andy, from what I know from Leonardo, I druther guess that it's a case of zonal induction heating for hardening purposes. Peter Am 05.03.2013 20:35, schrieb andy pugh: On 5 March 2013 19:34, andy pugh bodge...@gmail.com wrote: G2 X0 Y0 C720 I10 J10 F10 P2 Is what you would need. I guess you are measuring crankpin roundness? -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- *Leonardo Marsaglia*. -- Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_feb ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
