1/2/2023 0 Comments Cnc touch plate zero![]() This procedure can be used when a drill is changed. I do not use the program yet (discovered its existence yesterday), but I think the best would be to create this procedure as XYZ probing, and leave the current procedure as Z probing. You can use an input on your CNC Controller, but if you don’t have free inputs because they are used for Limit Switches like in my case. ![]() G91 G0 Z3.175 # goes to the Z end position 3.175mm over the piece Mach3 Zero Probe Tool: This is a Simple Guide on how to use a Probe Tool in Mach 3 to find the exact top of a material. G92 Z20.32 # when find Z, Z0=20.32 (Touch Z Axis Thickness): G38.2 Z-25.4 F76 # search for Z position of touch with feed of 76 (initial Z must be <= 25.4mm) G91 G0 Z24.07 # returns Z to stay in position (over the piece) (initial Z = 24.07mm) G91 G0 Y03.175 # returns to disengage the Touch (Y=3.175) G38.2 Y-25.4 F76 # search for Y position of touch with feed of 76 (initial Y must be <= 25.4mm) G91 G0 X-25.4 # forward X to stay in position (behind the piece): X = 12.7 - 25.4 = -12,7mm ![]() G91 G0 Y25.4 # returns Y to stay in position (behind the piece) (initial Y = 25.4mm) G91 G0 X12.7 # returns to disengage the Touch (X=12.7) G38.2 X-12.7F76 # search for X position of touch with feed of 76 (initial X must be <= 12.7mm) Desire Feed: 76 mm/min Bit Diameter: 3.1750 mm Touch Z Axis Thickness: 20.3200 mm Touch X Axis Width: 50.8000 mm Touch Y Axis Width: 50.8000 mm ![]()
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