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    Parametric Parting Off Tool for lathe using spring

    Parametric Parting Off Tool for lathe using spring.

    !!! be aware:!!!

    • I have made so far the tool for bladeType=bt_HBM_1_5x8_25x73 from metal with wPartingTool = 11.6
    • I have made so far the tool for bladeType=bt_HBM_3_32x1_2x4 from metal with wPartingTool = 14.8
    • I do not own "bladeType=bt_3_32x1_2x45" and "bladeType=bt_3_32x11_16x5", so I cannot test these. I recommend to 3D print these and test fit before machining them.

    The tool is inspired by the designs of both Winky and NBR Works:
    https://www.youtube.com/@WinkysWorkshop
    https://www.youtube.com/@nbrworks

    Following blade types have been modeled:

    • 3/32" x 1/2" x 4-1/2" (bladeType=bt_3_32x1_2x45=0) used by NBR Works
    • 3/32" x 11/16" x 5" (bladeType=bt_3_32x11_16x5=1) used by Winky
    • 1.5 x 8.25 x 73 (bladeType=bt_HBM_1_5x8_25x73=2)
    • 2,5x10x100 (bladeType=bt_HBM_2_5x10x100 = 3)
    • 3/32"x1/2"x4 (bladeType=bt_HBM_3_32x1_2x4 = 4)

    Machined (3D printed) Parts:

    • PartingTool_Top_type.stl
    • PartingTool_Bottom_type.stl
    • PartingTool_QCTP.stl

    Other parts:

    • hex screw M5 (7x)
    • screw M8 (3x) for MultifixA

    Interesting parameters to change (and rerender the model):

    • strengthFulcrum = 13.0; // higher value will result in stronger spring
    • wPartingTool = 15.0; // higher value will result in stronger spring
    • screwType = stM5;
    • bladeType = bt_HBM_1_5x8_25x73;

    Remarks:

    • PartingTool_QCTP is the connector for attaching the Parting tool to a MultifixA quick change tool post (QCTP).