As per attached my drawing in CAM program is shown on the bottom left side, I do a simulated cut to assure all is good and then I ask for the NC file. I open this NC file in Mack3 and the drawing is showing in the upper right side.

Why this happens and how can I fix it?

Thanks

You must have the  X & Y axis setup the wrong way round on your machine or you have mirroring turned on

Don’t know where mirroring setting is in Mac3 but this morning I decided to reference the machine at startup and after I loaded the code the drawing now is in the right place.

Now if I can figure out why my darn Probe is behaving crazy I will do my first cut. Out of 5 tries with the Probe only 2 are good (makes the contact and goes up 1”), the rest she goes up or down by about 1/2" and then stops. The diagnostic screen shows the Probe works.

You need to post your probing code, it could be timing or parameter errors

Here is the script which I copied from the web years ago and have use it in other cnc with no problems at all.

Message( "Auto Zeroing..." )
If IsSuchSignal (22) Then
code "G31 Z-3 F20"
While IsMoving()
Wend
Call SetDRO( 2, .375 )
code "G1 Z1"
End If

I’m puzzled why now it doesn’t work. BTW I just post a video of my cnc doing my first cut, think the title is "My first cut"

Thanks

In case it helps, my previous cnc were all with a printer port connecting Mach3 to a desktop PC. Now I use ESS with a laptop. I have no experience with ESS so I feel perhaps the ESS has something to do with the Probe problem. The script has always remained the same