Hello all, Just got this machine up and running, it's a Mighty USA Mustang with a Yasnac PC NC control. Machine was sitting for a while and seems to have lost some memory possibly because of the battery losing juice but we are not sure. Anyway, we are having 2 main issues with it and need to get these resolved! Thanks in advance for any assistance!
#1)1st problem is regarding the initial zero/home reference of the machine upon startup. If any of the x, y or z axis switches are in the negative direction of the reference stops the machine will home fine. However, if the machine was last set in home position upon shutdown, and it is started up and homed it will overtravel in these axis. All machines I have ever used incorporate a negative move first then a positive move in case the machine is in between the reference stop and hard stop, is it possible to make the machine do a negative move first in order to get in front of the stops? This would eliminate any overtravel problems.
#2)2nd problem is regarding the workpiece Z position display when running a program, making it impossible to run a program safely. We didn't have this problem before we moved the machine. When running a program, after the work offset, such as G54, is called up along with the tool height, such as G43 H1, the workpiece Z position is never correct. It is way off and seems to be reflecting the tool height number relative to machine zero. We have tried changing it under the offsets page while not running and it doesn't help the problem. Is there a parameter to correct this number or is it possible I am doing something wrong in the program?
Once again thanks in advance.....