Igor Chudov wrote: > Andy, thanks, what is P? Number of passes? > > The problem is that the lumps do not look like caused by backlash. > > There is one place where there is a lump, caused by all passes except the > first one. I am very puzzled. > Can you blow up the Axis plot window and see the lump? You can also plot velocity in Halscope and look for non-sinusoidal bumps there.
You might try makebore.c or makering.c from my web page http://pico-systems.com/gcode.html and see if you get different results. makering.c makes a slightly undersize circular pass in 4 quadrants X the number of depth steps, then spirals out and makes 4 more quadrants at the finish diameter. It definitely does not give bumps with a 2.4.x LinuxCNC on an older Linux kernel. I have not done any precision work with 2.5 (my production system runs a bit behind on updates). Jon ------------------------------------------------------------------------------ Live Security Virtual Conference Exclusive live event will cover all the ways today's security and threat landscape has changed and how IT managers can respond. Discussions will include endpoint security, mobile security and the latest in malware threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/ _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
