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  1. 21-12-2024 #1
    dudz's Avatar
    Lives in Dunedin, New Zealand.
    dudz
    Last Activity: 09-02-2025 Has a total post count of 295. Received thanks 2 times, giving thanks to others 79 times.
    Using my Storebro Combi-mill, (top spindle rpm 2500) - 1980s cnc mill

    Just looking forward into situations I'm bound to find myself in....

    For contour passes, I use 3 flute 10mm dia endmills (25mm usable cutting edge) full doc, 3mm stepover for roughing down, then to 0.2 on finishing passes. The finish has been very good. I could prob go double the stepover but haven't had the machine long enough to test it properly.

    using 2D contour passes in fusion, I would like to know if its best to use a large dia endmill to rough the contour passes down. I wondering if I can get away with a 20mm dia ( 50mm long flute ) 35mm doc then go in with a 10mm dia for finishing passes.
    Last edited by dudz; 21-12-2024 at 08:25 AM.
    Swedish Storbro Luna - 3 axis CNC mIll - 250 - 2500rpm / 1.1 tonne

    3 axis CNC/router / Alu profile frame....25mm Alu Cutting bed X=500mm Y=300mm Z=110mm.....Supported 25mm X rails ....Supported 20mm Y rails....Supported 20mm Z rails.....2.2kw Chinese WC spindle..... CSLAB CSMIO/IP-M 4-axis Ethernet Motion Controller....M542 Drivers..SY60STH86-3008BF Motors...running....Mach3 / Cambam / Emachineshop.
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