switching tools

[tntools]

      Here is a real stupid question. I think i'm ready to do a two tool sign. I know my toolpaths have to be numbered as to what bit and when. My question is what happens after the first bit does it thing. Does the machine stop then I change my bit and rezero z or do I hit pause, what are the steps? I know is really a stupid question but i'm not smart enough to fiqure it out before I break something.

[gerry]

If you're using Vcarve:

1. Generate a toolpath for each tool operation. You may have a pocket toolpath, and a profile toolpath for the same bit. Save the toolpath(s) to the USB stick using the SAVE TOOLPATH option. Check all the operations you want to complete. Check the box that says "Output all visible toolpaths to one file". Each checked toolpath will be written to the same file. It's your preference as to whether all 1/4" bit operations wil be performed in sequence or not. When you RUN a file, all operations for that bit that are saved in that single file will be run. The spindle turns on, the file is run, and the spindle turns off.

Usually, for a complicated run, I put each toolpath in it's own file, just to verify it's doing what it's supposed to. Then I run the next file in line. It may, or may not, require a bit change.

A typical run may be: 

    1. Load 1/4" bit.
    2. Drill 1/4" holes, put a pocket in the piece (all toolpaths saved to 1 gcode file).
    3. Change bit to 60 degree V-bit.
    4. Vcarve text from next gcode file.
    5. Change back to 1/4" bit.
    6. Do profile to cut out piece (1 gcode file).
    7. Remove bit, clean up, and remove finished piece.

The typical files saved will be:

1-25DM.mmg    1/4" down spiral mill
2-60V.mmg        60 degree V-bit
3-25DM.mmg      1/4" down spiral mill