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  1. #1
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    Join Date
    Jan 2017
    Posts
    2

    Adding taper to spindle variation macro

    Hey guys, new member here, trying to find a solution to my macro program (If its possible). Samsung SL-30 with the series 0i control. Boring out thin wall SS tubing, and I've already created a macro program to remove the chatter. Problem is between tool and part deflection I'm getting .001-.002" taper. Total size tolerance is +/- .0025", so often I'm cutting it close on tolerances. Here's the current program (the relevant portion). This program works great, awesome finish, but I'd really like to remove the taper if at all possible.


    #100=9.6 (PART LENGTH)
    #101=.005 (DISTANCE BEFORE SPEED CHANGE)
    #103=650 (RPM 1)
    #105=0 (COUNTER)
    #106=750 (RPM 2)


    G0 G28 U0
    G0 G28 W0
    G50 S1500
    G0 G40 G96 G99 T0101 M4S#103
    G0 X2.511
    M8
    G0 Z.25
    G1 Z0 F.01

    WHILE [#105LT#100] DO1
    G99 G1 W-#101 F.001 S[#103]
    #105=#105+#101
    G99 G1 W-#101 F.001 S[#106]
    #105=#105+#101
    END1

    G1 X 2.4
    G0 Z.25

  2. #2
    Registered
    Join Date
    Jan 2017
    Posts
    2

    Re: Adding taper to spindle variation macro

    I then came up with this program, but the x move between RPM changes is so small, the machine does not acknowledge it.



    #100=9.6 (PART LENGTH)
    #101=.005 (DISTANCE BEFORE SPEED CHANGE)
    #102=.004
    #103=650 (RPM 1)
    #105=0 (COUNTER)
    #106=750 (RPM 2)
    #107=#101/#100
    #108=#107*#102 ( X step)


    G0 G28 U0
    G0 G28 W0
    G50 S1500
    G0 G40 G96 G99 T0101 M4S#103
    G0 X2.511
    M8
    G0 Z.25
    G1 Z0 F.01

    WHILE [#105LT#100] DO1
    G99 G1 W-#101 U#108 F.001 S[#103]
    #105=#105+#101
    G99 G1 W-#101 U#108 F.001 S[#106]
    #105=#105+#101
    END1

    G1 X 2.4
    G0 Z.25

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