Tolerance checks are built into the 1911 program to make sure that the frame is no more than 0.008 inches out of square. Once it initially probes the part, it will compare the distance on the right side to the left side. If it is more than 0.008 inches, it will show a tolerance check failure.
1. X axis out of tolerance: There is a significant difference between the x position on the side of the front of the frame than the same side of the rear of the frame. The workpiece may be improperly mounted to the jig ,or the jig may be improperly mounted to the t-slot table. Otherwise, the t-slot platform is likely slightly higher on one side than the other.
a. Follow the procedure in this video to true your t-slot platform. You can use the ¼” end mill used for the AR milling program.
2. Z axis out of tolerance: There is a significant difference between the z position on the top-front of the frame and the top-rear of the frame. Push the left side of the jig forward so that it makes contact with the tooling when prompted in order to properly set the frame's z axis position. It may take numerous attempts.
a. If multiple Z-axis errors, follow these indications.
b. Prior to the probe sequence, when placing the frame-jig assembly into the work bay, push the frame to the left and rotate the tool so that two of the flutes are touching the frame. Snug the bolts and follow the probe sequence instructions.
3. If you continue to have issues, try a different frame, if you have another one. This can rule out the frame being the issue.
a. If, after leveling the T-slot plate and an additional few attempts, you are still having issues, there is a file that will ignore the tolerance checks after the probing sequence.
b. It is not recommended to use the no checks file before leveling the T-slot plate.