On Thu, 22 May 2014 08:20:45 -0400, you wrote:
>> However - I don't use home in LinuxCNC, it's not lathe friendly - > >I don't find it all that helpful for other than reestablishing positions >after a forced shut down in the middle of a job, chip broke, whatever. I don't even find that much use - On the odd occasion it's been required I just use the end of the work for Z and measure the diameter. If I've already faced the end, even better. I can work out where I am from there. >> I have no homing set in ini. Limit switches are enabled though. I simply >> zero on the end of the work. Just have to remember to leave enough >> stuck out the chuck so the tool don't hit it on external >> turning/threading and parting off. > >I have done that too, with a touch off, or occasionally, when the piece >has been cut off, clean up the nipple on the end and slide the workpiece >up to the zeroed tool for the next piece. My tool 1 is my reference tool with 0,0 offsets. All others have offsets compared to that, so once I got it right it just a matter of moving tool 1 to Z0 and making stock touch it. >Cutting off is a PIMA on this piece of rubber, and I finally wrote a >routine that will work for one cutoff per cutoff blade sharpening. It >goes inward about .2mm then pulls back before it can dig in and lock >things up, then moves .5mm sideways and repeats back and forth, preventing >the blade from being pinched in the groove, till it finally parts off. >Then I have to remove about 3mm of the end to get back to a full width >tool. I often use a rear part off tool inverted. It forces the saddle down at the back and seems to work better for me on tougher type materials. On larger diameter stock two inch or more I do alternate cuts to widen also. I use an insert type that curls the swarf into tight watch springs and they usually clear easily. I have had one memorable jam up, work came loose in chuck, the end of the holder (blade type) shattered and fired shrapnel all over, one piece hit me on the forehead - small cut, but deep - had to resort to salt to stop it bleeding :) Since then I have ALWAYS wore safety glasses. Steve Blackmore -- ------------------------------------------------------------------------------ "Accelerate Dev Cycles with Automated Cross-Browser Testing - For FREE Instantly run your Selenium tests across 300+ browser/OS combos. Get unparalleled scalability from the best Selenium testing platform available Simple to use. Nothing to install. Get started now for free." http://p.sf.net/sfu/SauceLabs _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
