Touch Probe
From PROBOTIX :: wiki
Probes:
- http://www.craftycnc.com/touch-probes/
- https://drewtronics.org
- http://www.deepgroove1.com/probe/probe.htm (appears to no longer be making probes)
Styli:
Mesh Software:
Probing G-code Routines:
- http://linuxcnc.org/docs/2.6/html/gcode/gcode.html#sec:G38-probe
- http://wiki.linuxcnc.org/cgi-bin/wiki.pl?Touch_Probe
- http://www.timeguy.com/cradek/01262579508
- http://lab.whitequark.org/notes/2014-07-06/g38-probing-workpieces-in-linuxcnc/
- http://www.scorchworks.com/Blog/auto-probing-with-g-code-ripper/
- http://www.scorchworks.com/Gcoderipper/gcoderipper.html
- https://forum.linuxcnc.org/49-basic-configuration/29187-work-with-probe
Included with LinuxCNC
LinuxCNC is distributed with gridprobe.ngc and smartprobe.ngc
( gridprobe.ngc ) ( Rectangular Probing ) ( ) ( This program repeatedly probes in a regular XY grid and writes the ) ( probed location to the file 'probe-results.txt' in the same directory ) ( as the .ini file ) (Configuration section) G20 (Inches) F4 (probe speed) #1=0 (X start) #2=.25 (X increment) #3=13 (X count) #4=0 #5=.25 #6=5 (Y count) #7=.1 (Z safety) #8=-.5 (Z probe) (End configuration section) (PROBEOPEN probe-results.txt) #9=0 #10=0 G0Z#7 O1 while [#9 lt #6] #10=0 G0 Y[#4+#5*#9] O2 while [#10 lt #3] O3 if [[#9/2] - fix[#9/2] eq 0] G0X[#1+#2*#10] O3 else G0X[#1+#2*[#3-#10-1]] O3 endif G38.2Z#8 G0Z#7 #10=[#10+1] O2 endwhile #9=[#9+1] O1 endwhile (PROBECLOSE) G0Z#7 G0X#1Y#4 M2
(probe-hole.ngc) O<probe-hole> sub G20 F25 #1000=#1 ;max radius G91 G38.3 Z.00001 #1001=#5061 #1002=#5062 G91 G38.2 X#1000 #1003=#5061 G90 G0 X#1001 G91 G38.2 X[0-#1000] #1004=#5061 #1001=[[#1003+#1004]/2] G90 G0 X#1001 G91 G38.2 Y#1000 #1005=#5062 G90 G0 Y#1002 G91 G38.2 Y[0-#1000] #1006=#5062 #1002=[[#1005+#1006]/2] G90 G0 Y#1002 G91 G38.2 X#1000 #1003=#5061 G90 G0 X#1001 G91 G38.2 X[0-#1000] #1004=#5061 #1001=[[#1003+#1004]/2] G90 G0 X#1001 G91 G38.2 Y#1000 #1005=#5062 G90 G0 Y#1002 G91 G38.2 Y[0-#1000] #1006=#5062 #1002=[[#1005+#1006]/2] G90 G0 Y#1002 F0.1 G90 G0 X[#1003-0.005] G91 G38.2 X0.010 #1003=#5061 G90 G0 X[#1004+0.005] G91 G38.2 X-0.010 #1004=#5061 #1001=[[#1003+#1004]/2] G90 G0 X#1001 G90 G0 Y[#1005-0.005] G91 G38.2 Y0.010 #1005=#5062 G90 G0 Y[#1006+0.005] G91 G38.2 Y-0.010 #1006=#5062 #1002=[[#1005+#1006]/2] G90 G0 Y#1002 G91 G1 F1 X[0-#5071] Y[0-#5072] G90 #1007=[#1003-#1004+[6.0/25.4]] #1008=[#1005-#1006+[6.0/25.4]] #1009=[[#1007+#1008]/2] #1010=[atan[#1002]/[#1001]] #1011=[sqrt[[#1001*#1001]+[#1002*#1002]]] (debug,Dia #1009 Ang #1010 Dist #1011) O<probe-hole> endsub
( smartprobe.ngc ) ( Rectangular Probing ) ( ) ( This program repeatedly probes in a regular XY grid and writes the ) ( probed location to the file 'probe-results.ngc' in the same directory ) ( as the .ini file ) (Configuration section) G20 (Inches) F20 (probe speed) #1=-1 (X start) #2=.04 (X increment) #3=51 (X count) #4=-1 #5=.04 #6=51 (Y count) #7=1.1 (Z safety) #8=-.1 (Z probe) (End configuration section) (LOGOPEN,probe-results.ngc) #9=0 #10=0 G0Z#7 O1 while [#9 lt #6] #10=0 G0 Y[#4+#5*#9] O2 while [#10 lt #3] O3 if [[#9/2] - fix[#9/2] eq 0] #11=[#1+#2*#10] O3 else #11=[#1+#2*[#3-#10-1]] O3 endif (#11 is X target) #5070=1 O4 while [#5070 NE 0] G38.5 z#7 G38.3 x#11 O4 endwhile G38.2Z#8 (LOG,G1 X#5061 Y#5062 Z#5063) #10=[#10+1] O2 endwhile G0Z#7 #9=[#9+1] O1 endwhile (LOGCLOSE) G0Z#7 G0X#1Y#4 M2