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(this program demonstrates how to measure tool lengths automatically using)
(a switch hooked to the probe input. this is useful for machines without)
(tool holders, where the length of a tool is different every time it is)
(inserted.)
(g30 should already be set to a position safely above the switch)
(start with the first tool loaded, and g54 work offsets set with it)
(when you touch off the work with this reference tool, be sure length)
(comp is off {use g49})
g20 g90
g49
g0 x0 y0 z1
(measure reference tool)
g30 (above switch)
g38.2 z0 f15 (measure)
g91 g0z.2 (off the switch)
#1000=#5063 (save reference tool length)
(print,reference length is #1000)
g90 (done)
(cut with first tool...)
g0 x0 y0 z1
g1 z0 f20
g2 x0 y0 i0 j.05
g0 z2
(msg,insert another tool)
(use TxM6 here if you want to be able to use radius comp too)
m0
(measure next tool)
g30 (above switch)
g49 (measure without the last tool's offset)
g38.2 z0 f15 (measure)
g91 g0 z.2 (off the switch)
g43.1 z[#5063-#1000] (set new tool offset)
(print,new length is #5063)
g90 (done)
(cut in the same place with this next tool...)
g0 x0 y0 z1
g1 z0 f20
g2 x0 y0 i0 j.05
g0 z1
(exit with tool length offset still in effect, in case we want to use MDI)
m2
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