Z axis cuts too deep


Results 1 to 3 of 3

Thread: Z axis cuts too deep

  1. #1
    Member BenDayJoe's Avatar
    Join Date
    May 2021
    Posts
    1
    Downloads
    0
    Uploads
    0

    Default Z axis cuts too deep

    I’ve got a Fadal VMC 40, using a calmotion usb, and fusion 360:

    So x and y axis all run true to the cam programming. However the z axis alway cuts too deep/runs into the part to aggressively to get there. I have done tool setting and fixture setting 100x and don’t know what I’m doing wrong. It tends to cut in nearly 1/2” too deep every time. This machine is new to me, and I am new to machining. I feel like I’ve been through every manual and website trying to find what I’m missing and can’t find it. Any suggestions?

    Similar Threads:


  2. #2
    Community Moderator Jim Dawson's Avatar
    Join Date
    Dec 2013
    Posts
    5717
    Downloads
    0
    Uploads
    0

    Default Re: Z axis cuts too deep

    Are you setting the Z zero in the same place both in Fusion and the part? I normally Z set to the top of the part. Sometimes Fusion can be a little tricky to setup properly, you have to make sure it did what you expected. Simulation is your friend.

    Jim Dawson
    Sandy, Oregon, USA


  3. #3
    Member
    Join Date
    Jun 2005
    Location
    Australia
    Posts
    0
    Downloads
    0
    Uploads
    0

    Default Re: Z axis cuts too deep

    Hi i don't know if this will help.
    I have a similar issue with the free version of Fusion 360 and Mach 3
    The new changes to fusion removes the G43 command from the Mach 3 g-code output

    When the C code is generated in the first few lines it does a G49 command that clears the tool offsets
    If a G49 exists in the G code then I have to add the G43 Z(safe) H (Tool Number ) command.

    You could try to remove the G49 from the G code.
    Manually enter it in before running the code then reset your zero manually and see what happens.
    I have not tried that yet but it was going to be my other option if the tool offset didn't work.

    Below is a sample of what i had to do if it helps.
    G49 clears all tool height offsets
    M5 changes tool routine
    T124 M6 changes tool to tool 124 but does not apply the tool height offset yet
    G43 Z5 H124 applies the tool height for tool 124 at the tool table height for H124 with a safe Z of 5mm above the work zero ( I have the tools heights entered into the Mach 3 controller so it knows what to apply)
    you don't need to worry about all the rest of the code its only a sample of my output.

    (ATT-EDGE-6)
    (T124 D=4. CR=0. - ZMIN=-4. - FLAT END MILL)
    G21
    G40
    G49
    G80
    G90
    (WHEN USING FUSION 360 FOR PERSONAL USE, THE FEEDRATE OF)
    (RAPID MOVES IS REDUCED TO MATCH THE FEEDRATE OF CUTTING)
    (MOVES, WHICH CAN INCREASE MACHINING TIME. UNRESTRICTED RAPID)
    (MOVES ARE AVAILABLE WITH A FUSION 360 SUBSCRIPTION.)

    (2D CONTOUR2)
    M5
    T124 M6
    S2500 M3
    G54
    G0 B0. C0.
    G17
    G43 Z5. H124
    G0 X155.4 Y-33.7 Z4.
    G94 G1 Z2. F60.
    Z-0.1 F120.



Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  


About CNCzone.com

    We are the largest and most active discussion forum for manufacturing industry. The site is 100% free to join and use, so join today!

Follow us on


Our Brands

Z axis cuts too deep

Z axis cuts too deep