Questions for those experience in CNC machining

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  • athomas
    Of course it works-its AGD
    • Jan 2002
    • 8039
    #16
    One thing to consider is a 4th axis. That will allow you to put a rotary table on the mill and cut nice even cuts on circular/round objects. Even with 2.5D cam software, you can lay it out flat and cut it around a tube. You can cheat with 3 axis systems by using one of the other axis as the rotary but you lose some flexibility (its really only good for perfectly round pieces).

    You want to keep the ability to use manual control. Make sure you get dual shaft motors (preferably with flats already cut) You can cut your own flats though with the mill, but definitely do cut the flats. You'll get your handles stuck on the ends of the motor shafts if you don't.
    Except for the Automag in front, its usually the man behind the equipment that counts.

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      • redlaser666
        US ARMY SGT
        • Jul 2002
        • 841
        #17
        For my applications I will not need the 4th axis, but if its an available upgrade I may consider it for a future upgrade.

        Why is keeping manual control important?
        Do you normaly have to use the manual controls for something or is a just-in-case thing?
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          • athomas
            Of course it works-its AGD
            • Jan 2002
            • 8039
            #18
            Sometimes it is just quicker/easier to set things up manually than it is with automated controls. Then, you can reference that point from your home switches for accurate automated control of your cuts. A jog controller works, but involves more tapping keys and checking position.

            For example, if I don't have an accurate measurement for the position of a hole in a part and I want to guide the cutting head down inside that hole, I would far sooner run the head down manually and feel whether is is lined up rather than trust that it looks lined up and end up hitting an edge. I could use gauges and measuring devices, but that takes time and it could be a simple cut that I need to make quickly.

            Most motors these days have the option of dual shaft for no additional cost. It is just a nice feature to have. You don't need to keep the handles on the shafts all the time if you don't want to.
            Except for the Automag in front, its usually the man behind the equipment that counts.

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              • redlaser666
                US ARMY SGT
                • Jul 2002
                • 841
                #19
                I think the ebay kit comes with double shaft motors so when I do this I will keep all the sugestions in mind.
                Thanks!
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                  • y0da900
                    Mechanical Engineer & Nerd
                    • Mar 2006
                    • 215
                    #20
                    After I ordered they sent me a message asking if I would prefer single shaft or dual, so they definitely give you the choice.

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                      • redlaser666
                        US ARMY SGT
                        • Jul 2002
                        • 841
                        #21
                        Cool! Looks like they offer just what I need then. Thanks for everyones input!
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