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a.      Always return home for tool changes, specifying a move in the X-axis away from your part, then specify a z-axis move to home the tool

                                                  i.      G00 G53 X0.0

                                                ii.      G00 G53 Z0.0

                                              iii.      CAUTION: Specifying G28 X0.0 Z0.0 will command the machine to send the tool to the X0.0 and Z0.0 of the current work (part) coordinate system as a vector move AND THEN HOME, causing the tool to CRASH into the part

b.      Do not program vector rapid movements (moving the X and Z axes at the same time)

                                                  i.      The code is executed line by line, so placing an X and Z coordinate in the same line will simultaneously move both the X and Z axes to each coordinate (i.e. G00 X0. Z0.)

                                                ii.      CAUTION: Specifying G28 will command the machine to send the turret home using a rapid vector move, so use G53s instead, as described above

                                              iii.      CAUTION: MAKING THIS ERROR CAN CAUSE A COLLISION. ALWAYS PROOFREAD YOUR CODE, RUN A SIMULATION, AND DO A DRY RUN AT 5% RAPID EVERYTIME ANY CHANGE IS MADE TO A PROGRAM, NO MATTER HOW SMALL THE CHANGE MAY BE.

 

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G28 U0. No need to home a Z on a lathe the Z start position i.e(Z.1) should be before any X move in a program
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