On Sun, 29 Mar 2009 09:43:48 +0200, you wrote: >Steve Blackmore wrote: >> Softlimits? I don't use them. I have limit switches, I don't use them >> either, I think since the eighties I've hit them twice. They are simply >> there to stop the machine ramming the end of the ballscrews ;)
>Don't confuse limit and home switches. Limit switches prevent damage to >the machine (but should never be hit in real life). >Home switches determine where your machine's zero location is. I'm not :) Why should "home switches" necessarily define where your machines zero location is? They should be able to be set at any arbitrary numbers you like, as long as the controller knows where they are and can make the relationship between them, the work coordinates and the machine limits. It doesn't matter a jot what the figures are, as long as the machine can go there ;) For all intents and purposes, machine coordinates are irrelevant to an operator. They are a machine setup value that work in the background, in most commercial shops the only person who ever needs to access them is the repair man. Steve Blackmore -- ------------------------------------------------------------------------------ _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
