[Emc-users] G41/G42 question
Hello, guys! I am experimenting with G-code output from my CAM application for EMC. I used this CAM programm for my old controls on waterjet machine and now I would like to keep it also for EMC. The question is - where and how to specify the amount of compensation to be applied with G41 and G42? The CAM program automatically inserts appropriate G41 or G42 before each block of G01/G02/G03 moves and issues G40 after that. I just don't get, where the size of tool (in my case - radius of water jet) is specified? I was searcing the web, but all the places I looked are basically talking about the difference between G41 and G42 - which is left, and which is right side, and that they do not work in canned cycles and some other stuff. I looked also in EMC2 G-code reference page, where G41 and G42 commands are explained, but it also does not explain. http://linuxcnc.org/docs/html/gcode_main.html#sec:G41,-G42 Is there a way to specify the tool radius as a variable in the same line with G41 or G42? I think that this would be the most convinient way for me, because then I can save the syntax of whole G41 or G42 line in my CAM program so that I do not have to edit file by hand and also that would allow me from time to time adjust this number to meet exact size of water jet - nozzle wears out and I have to adjust to that. with best regards, Viesturs -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G41/G42 question
On 8 June 2010 13:49, Viesturs Lācis viesturs.la...@gmail.com wrote: The question is - where and how to specify the amount of compensation to be applied with G41 and G42? It comes from the Tool Table for the currently loaded tool. Is there a way to specify the tool radius as a variable in the same line with G41 or G42? G43.1 ? http://linuxcnc.org/docs/html/gcode_main.html#sub:G43,-G49:-Tool -- atp -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G41/G42 question
G41 and G42 work with tools from the tool table. In the tool table you define the exact diameter and other parameters of the tool. You probably want to use G41.1 and G42.1 which allow you to specify the diameter along with the code. http://linuxcnc.org/docs/html/gcode_main.html#sec:G41.1,-G42.1 The same is true for G43.1 but for tool lenght, not diameter compensation. Regards, Alex - Original Message - From: Viesturs Lacis viesturs.la...@gmail.com To: Enhanced Machine Controller (EMC) emc-users@lists.sourceforge.net Sent: Tuesday, June 08, 2010 3:49 PM Subject: [Emc-users] G41/G42 question Hello, guys! I am experimenting with G-code output from my CAM application for EMC. I used this CAM programm for my old controls on waterjet machine and now I would like to keep it also for EMC. The question is - where and how to specify the amount of compensation to be applied with G41 and G42? The CAM program automatically inserts appropriate G41 or G42 before each block of G01/G02/G03 moves and issues G40 after that. I just don't get, where the size of tool (in my case - radius of water jet) is specified? I was searcing the web, but all the places I looked are basically talking about the difference between G41 and G42 - which is left, and which is right side, and that they do not work in canned cycles and some other stuff. I looked also in EMC2 G-code reference page, where G41 and G42 commands are explained, but it also does not explain. http://linuxcnc.org/docs/html/gcode_main.html#sec:G41,-G42 Is there a way to specify the tool radius as a variable in the same line with G41 or G42? I think that this would be the most convinient way for me, because then I can save the syntax of whole G41 or G42 line in my CAM program so that I do not have to edit file by hand and also that would allow me from time to time adjust this number to meet exact size of water jet - nozzle wears out and I have to adjust to that. with best regards, Viesturs -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G41/G42 question
2010/6/8 Andy Pugh a...@andypugh.fsnet.co.uk: On 8 June 2010 13:49, Viesturs Lācis viesturs.la...@gmail.com wrote: The question is - where and how to specify the amount of compensation to be applied with G41 and G42? It comes from the Tool Table for the currently loaded tool. So there is no other way to adjust the kerf size as only in the tool table? Ok, thank You for a suggestion, probably I can live with that as I do not have to do it very often. Is there a way to specify the tool radius as a variable in the same line with G41 or G42? G43.1 ? http://linuxcnc.org/docs/html/gcode_main.html#sub:G43,-G49:-Tool That is tool LENGTH compensation... Am I missing something? I feel like that might be a good way to adjust for different nozzle lengths, but I do not see, how to compensate the kerf size. Viesturs -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
Re: [Emc-users] G41/G42 question
2010/6/8 Alex Joni alex.j...@robcon.ro: G41 and G42 work with tools from the tool table. In the tool table you define the exact diameter and other parameters of the tool. You probably want to use G41.1 and G42.1 which allow you to specify the diameter along with the code. http://linuxcnc.org/docs/html/gcode_main.html#sec:G41.1,-G42.1 Thank You! My apologies for such an impatience, at the beginning I read it once, but did not clearly understand, so asked this question on the mailing list, now I read it twice and understood that it is exactly, what I meant :)) Viesturs -- ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo ___ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
