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Speed and feed calculation

Discussion in 'CNC Mills/Routers' started by KnockOnWood, Jul 31, 2023.

  1. KnockOnWood

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    Can somebody help me? I am trying to find out what the calculation is that is used to figure out your speed, fees, depth of cut, and plunge rate. I am wanting to know the formula so I can figure up the info needed while I am in my shop using different sized bits on different materials.
     
  2. Christian James

    Christian James Journeyman
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    Chip Load Chart - CNC Tooling - Cutter Shop

    Depending on your machine, you may have to ease off your depth of cut if it's not an industrial built machine. The guys on here with home workshop machines, generally have a depth of cut of about half the cutter diameter
     
  3. KnockOnWood

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    Okay. I’ve got the lead 1515. Just got it put together about 3 this morning.
     
  4. KnockOnWood

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    I think I’ve got too much dust not enough “chips” I realized I was only running it at about 10,000 rpm. I am a cnc machinist for my normal job milling steel and the highest rpm we go is 5000 so even 10000 seemed a little uneasy to me but, I’ll call that baby up next time and let it rip
     

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  5. KnockOnWood

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    Thank you for your help
     
  6. Alex Chambers

    Alex Chambers Master
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    Search the forum for "speeds and feeds" - there are a few resources available which give starting points suitable for our hobby machines.

    Eg; Speeds and feeds

    Alex.
     

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