(02-18-2015, 08:00 PM)jeephaydon Wrote: Yes Steve it's metric ,and it is backlash what i'm talking about but i couldn't think of the word i'm pretty poor at explaining things. But if i make a pass on a bit of material and then go back it takes more metal off you can go back and forth probaly 3or4 times without moving the cross feed and it will still take material off. I don't have much experiance but it just doesn't seam right.
Jeep, If understand you, you mean you take a cut and the retract the carriage for a second cut and without advancing the tool the second pass removes more metal, even several times?
Do you back up the tool to reverse the carriage? I|f not, does it cut material as you retract for your second pass?
If so I'd say you tool geometry/sharpness/ center height may be off.
Steve
Busy Bee 12-36 lathe, Busy Bee Mill drill, Busy Bee 4x6 bandsaw, Homemade 9x17 bandsaw, Ad infinitum.