z went go up after this g-code

I have a file here where the Z refuses to go up.
It cuts a rectangle then a hole then another hole then z can't go up (just a buzz sound)
Always after it cuts the 2nd hole, Always!!!
See *** comment inside Gcode

Power problem? I unplugged X and Y servos same problem
Binding/ motor problem? Plugged X axis servo ( so I'm actually moving the x-axis) into Z port with other two servos unplugged same problem. the Z.125 code just buzzes servo.

Yet I can jog the mill all over with no problem
Its only this dam file that causes the problem.

I tried lower speeds etc. etc. etc.

I was able to minimize the code and still have the problem
One hole then G0 Z.125 and it fails.... see code below.

Can anyone try this code on deskcnc

( Made using CamBam - CamBam CNC Software )
( sports-lcd-top 8/20/2012 10:45:40 PM )
( T0 : 0.125 )
G20 G90 G64 G40
G0 Z0.125
( T0 : 0.125 )
T0 M6
( profile1 )
G17
M3 S1000
G0 Z0.125
G0 X2.9178 Y0.8795
G1 F10.0 Z-0.1
G2 F30.0 X2.9838 Y0.9847 I0.1322 J-0.0095
G2 X3.1825 Y0.87 I0.0663 J-0.1147
G2 X2.9838 Y0.7553 I-0.1325 J0.0
G2 X2.9178 Y0.8795 I0.0663 J0.1147
G0 Z0.125 <---- *************** F A I L S

Deskcnc does this every once in a while for some reason, not sure why... By every once in a while I mean 2 or 3 times on thousands of files over the past 7 years.

Try changing that line to G1 F10 Z.125

Are your steps per inch the same for both the x and y? If not the calculations get handled by the pc instead of the controller card, which can make things interesting, depending on your pc.

Theres a big update coming soon too, supposed to be good!

Also, why are you using cambam for such simple code? Have you tried toolpathing the same file with deskcnc?

Originally the file had several cutouts. I removed all the other code and only left the code where it fails.

Interestingly If I cut the same hole at same location but start cutting out hole at 270 deg this changes the J and I values (start on the left side of the hole not in some odd place as it does now) it works fine. I wonder if it dislikes those I and J values.

I also tried G1 F10 Z.125 as suggested. same thing.

it runs fine on my machine...

Just try taking out the tool change command and see what happens.

Since you have already touched off your tool there is no reason to tell the machine to perform a tool change. I don't see anywhere in your code that tells the machine to reference a tool height. Some controllers use "H0" or g43 H0

I would start by just getting rid of the tool change first.

i hope this helps.