2011/3/25 Les Newell <les.new...@fastmail.co.uk>: > With plasma and waterjet cutting the kerf width (cut width) varies quite a > lot as the > nozzle wears so radius comp is useful.
But it has to be a hell of a length for one job to wear out waterjet's nozzle (I assume that plasma torches last even longer) or that has to be extremely precise work to account for changes in wear during a single file, but I do not think that anyone would do that with waterjet or plasma because of taper and other reasons. I understand that situations, where some kind of parts are produced in large quantities and thus the same file is ran again and again that can be an issue, but for these cases one can afford spending some more time to ensure that code works correctly with G41/G42. My experience is that in the beginning I wanted EMC2 to handle kerf width with G41/G42 command. I ended up with a "concave corner, need to gouge" error in some files, so I have ended up with my CAM application dealing kerf width. And if CAM app can do it correctly and as flexible as EMC2 (at least my CAM application allows to change the side of the compensation or turn it off for each particular line in the drawing) then there is no difference. Actually I now prefer to do it in CAM application, because I can see on the screen, if the side of compensation is set correctly. It sometimes gets tricky, when a part is nested in the scrap material inside another part - that can confuse those programms. So my conclusion - make sure that Your CAM app does it perfectly and Your customer will not have a reason to look for other options (like G41/G42 commands) to do the same. Viesturs P.S. Les, I sent You private e-mail 5 days ago. Could You, please, take a look at it? ------------------------------------------------------------------------------ Enable your software for Intel(R) Active Management Technology to meet the growing manageability and security demands of your customers. Businesses are taking advantage of Intel(R) vPro (TM) technology - will your software be a part of the solution? Download the Intel(R) Manageability Checker today! http://p.sf.net/sfu/intel-dev2devmar _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
