Shaffin Bhanji wrote: > I noticed that when I cut a 6"x3" 1/8" thick aluminum from sheet, the > squares are are off by at least 1 degree that lends me to believe that > my Y-axis deflects when cutting. > Are you sure your axes are truly orthogonal? The easiest way to check is to get a known-square machinist's square and lay it flat on the table. You align it with a dial test indicator until moving say the X axis shows no change in dial reading along the entire length of one arm of the square. Then move so the indicator can check the other arm of the square. You should again see no change in reading. If there is a change, then you need to move the travers of one axis relative to the other and recheck. Repeat until you get no deviation on either arm of the square. This will mean having to adjust the mounting of the rails.
Of course, on such a large machine, you may have deflection. Taking one last finish cut with very small depth of cut may reduce the deflection. But, cutting a small piece out in the middle of your table, deflection would be much more likely to cause size error rather than cutting at an angle. Jon ------------------------------------------------------------------------------ This SF.net email is sponsored by Make an app they can't live without Enter the BlackBerry Developer Challenge http://p.sf.net/sfu/RIM-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
