Changing tools in linuxcnc and Fusion360

After a few months of paying with my 6040cnc machine i decided to try and ramp up the level of my cam programs.

So, i tried making a V inlay engraving.
The female side went well, but the make side, was, and still, confusing for me.
I used 6mm Flat mill to mill out the paramiter of my shape and then planed using a 90° V_bit for the final shape.
I think my Cam is good, but i'm having trouble replacing tools during operation.

How can i change to the V_bit and zero it's Z_axis without exiting the program?
I have a very basic chinese controll board and no zero axis plate.
I'm using Fusion 360 for the CAD and Cam, and LinuxCNC as post proccesor for the machine.

Any advise or tips will be much appreciated.

Thank's

Shahar

Hi welcome
Firsat
there is best practice to handle things on 6040
USE for every bit you got a separate FILE
part_x_6mmbit
part_x_vbit90
part_x_vbit60
part_x_xxxxx
YOU can add also a ORDER Letter
like part_X_A_6mm
B,C,D

THIS can be done in Fusion360 FILE per Operation in settings
USE order is a option

THEN
you can use a simple TOOL Zeroing Routine and work like that my YT


here it is a wood engrave with 4 files and bits

shahargut wrote:

How can i change to the V_bit and zero it's Z_axis without exiting the program?

You can't. You can't pause a running program, work manually and then unpause the program.

One file per tool is one alternative.
Having the tools all measured up and just change them is another, if the spindle has that type of chucking.
Use a tool length probe and automatically measure the tool length at tool change time is another.

Another thing you could do is make sure M1 optional stops are placed in the gcode before each section. This is an option in the Fusion post processor. Then activate Optional Stops in the linuxcnc gui. When the program pauses after a section, stop the program, do your tool change and re-zero, then restart where you left off. However, having said all that, the best option is to make a separate file for each tool. As for v-carving, there are some good tutorials on youtube. These generally refer to Aspire but the principles are the same. HTH

Thank's for the advise.
I sapose you zero the machine over again for every tool?

Since i don't know how to connect a z zero plate to my machine, i thought making a simple jig for measuring tools, that way i can mark every tool for the same stickout (20mm for exemple), and that way i can set the tools in the CAM with a set stickout and rely on that for z hifht when changing tools between operations.

Do you think these solutions can work?