Where's Z-zero?

[StefanV]

So I got my Multicam 305 going and ran test files today. I kept on getting an “out of bounds” on the Z-axis. I looked at the g-code file and figured the test file was looking at the spoil board being Z-zero, and up being a more negative number. The Machine shuttle however, indicates the Z-axis all the way up is zero and the number increases positive as the spindle goes down.
So when I manually changed the g-code in the test file to use positive numbers only, it ran without a problem. I hope they don't expect me to re-write all my g-code So what’s wrong in my logic?

Thanks,
Stefan

[txcncman]

I answered this question in another thread today. No clue where that thread is now. Seems to have been deleted. Similar questions to this have been asked recently. Search for your topics to find those threads and read them.

[StefanV]

I did some searches and found some software specific info.
It seems to be a combination of setting the program to put out the correct code, and setting the correct home position on the machine's Z-axis.

I'm now looking on how to do that on the Multicam 305.

Stefan

[mactec54]

StefanV

They have it back wards, they need to change it in there control



General Post Processor Notes

•Z axis parameters
◦Material Surface (Z = 0.0)
◦Tool Lift (-Z) (Z= -0.75 would raise the cutter .75 inches above the material.)
◦Depth (+Z) (Z=1.5 would lower the cutter 1.5 inches into the material.)
•G00 C[tool change text]
◦This command will display the text that follows the "C" on the keypad display. It can be used to perform tool changes on machines that do not have automatic tool changers.
◦The user will have that ability to surface the new tool when this command is called.
◦Do not use this command on systems that do have an automatic tool changer.
◦The keypad pad display has 2 lines, 20 characters each line, 40 characters total.. To provide the user with the best possible visual display spaces can be used to force some of the characters to the next line.
◦Example: G00 CInsert .25 inch end mill will prompt the user with the following text: "Insert .25 inch end mill".
•When creating a G-Code file from your post processor, the file must end with a .cnc or .anc file extension. This is important so the MultiCams DNC program knows that the file is a G-Code file.
•File comments: "//" is use for a comment example: // This line is a comment.
•Multiple G codes or M codes cannot be put on the same line.