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    dudz's Avatar
    Lives in Dunedin, New Zealand. Last Activity: 4 Weeks Ago Has a total post count of 295. Received thanks 2 times, giving thanks to others 79 times.
    So it will be the first time I am going to mill steel on my CNC mill. Firstly, The mill is 1980's. It weighs 1.1 Ton / Max Spindle Rpm 2500 / 2.2kw motor. I am using Fusion 360.

    I have a 20mm thick piece of mild steel. I want to face it down to 12mm. I have a 5 flute 50mm Shell mill with carbide inserts. I have used it on aluminium with different inserts for ali with good results. Online calculators don't seem to give me a very good starting point for this shell mill.

    What doc could I take without pushing the tool to hard ?. Speeds and feeds would be helpful to the relative doc
    Last edited by dudz; 06-02-2025 at 08:18 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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