Cycle time improvement
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  1. #1
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    Default Cycle time improvement

    I am running a turning job in annealed tool steel - 18mm diameter bar. The part is about 2" long and a little over 1/2" in diameter. Currently it takes 1 minute 56 seconds. I am looking to improve the cycle time. The program is made in VPS. I have made a few manual modifications, but I am sure there are lots of little things I can do to cut the cycle time. When I looked at it now on the computer I noticed the OD roughing cycle cuts lots of air where it already faced of the part due to the finish OD cycle doing the finish facing too. Any ideas are welcome, but be specific , my G-code skills are not epic.
    I am running it in a NLX 2000 SY. I have attached the whole file too.

    I have noticed one place in particular where improvements could be made: When going from the roughing cycle to finishing cycle with the endmill:

    N9
    (ENDMILL, 10.000, T521)
    G0M5
    M69
    G98G19
    M245
    G28H0
    G55
    G0T0521
    M8
    G97S200M13
    S4000
    G0Z-5.5
    X24.
    C180.
    M268
    G0Y17.785Z5.832
    X14.25
    G1X-16.F4000.
    Y13.878Z2.553F1250.
    Y1.067Z-8.196
    G2Y-5.811Z-10.7R10.7
    G1Y-7.
    Y-12.1
    G0X14.25
    Y15.985Z7.976
    G1X-16.F4000.
    Y12.078Z4.698F1250.
    Y-.733Z-6.051
    G2Y-5.811Z-7.9R7.9
    G1Y-7.
    Y-12.1
    G0X14.25
    Y14.185Z10.121
    G1X-16.F4000.
    Y10.278Z6.843F1250.
    Y-2.533Z-3.907
    G2Y-5.811Z-5.1R5.1
    G1Y-7.
    Y-12.1
    G0X14.25
    M69
    X24.
    Z-5.5
    G28V0
    M01

    N10
    (ENDMILL, 10.000, T521)
    G98G19
    M245
    G55
    G0T0521
    M8
    G97S200M13
    S7500
    G0Z-5.5
    X24.
    C180.
    M268
    G0Y14.121Z10.198
    X14.25
    G1X-16.F2000.
    G41Y7.Z10.75F1000.
    Y-5.811Z0
    Y-7.
    G40Y-12.1Z-5.
    G0X14.25
    M69
    X24.
    Z-5.5
    G28V0
    G53X-50.
    G53Z-316.
    M01

    Program.txt
    Last edited by Panza; 04-25-2020 at 08:23 AM. Reason: Added bar diameter.

  2. #2
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    Default

    I have shaved about 4 seconds in total with shorter lead-ins for the turning and removing the imaginary toolchange between the milling rough and finish.
    I am sure there is more to save with more quick M-codes, but the manual is not too detailed about what can be used where. The time hogs are really the transfer and the work unloader. Those takes up 20-30 seconds.


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