RE: [CAD_CAM_EDM_DRO] Re: X axis yaw on CNCd G8689

Thank you Mick and Ron - Will get some inspection done:o))

Chuck Merja

May be you should stop and think the idea through. There are several
possible reasons why you have the binding problem, pity to spend time
applying a fix to the wrong reason.

To check the ways you need to totally release the lead screw nut from
the table so as to allow you to manually move the table from end to
end. If it gets very stiff at either end then yes you have one of the
problems identified. If it still runs free at both or either end then
you can refine the test by slightly tightening the gibs on the table
and try again. Even some stiffness at either end is not necessarily a
signal to go shave the ways. Next you should make sure the axis of
the lead screw nut when is securely attached to the table aligns
perfectly with the axis of the bearings at the ends of the lead
screw, Don't try to check this before checking the ways, you might
get mislead, if the table gets tight at the end of travel then try
slacking and re seating the seating of the thrust bearing plates at
the ends of the lead screw. If slacking the seating doesn't correct
this problem then check how tight the nut is on the lead screw, Check
for that tightness by letting the travelling nut free from the table
and winding it to either end of the lead screw.

If you have the means to accurately shave the table then you have the
means to do the above.

Lol

Mike



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