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Thread: Gantry mill for precise milling of aluminium

  1. #25
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    Default Re: Gantry mill for precise milling of aluminium

    Cable carrier holder.. Milled on my machine yesterday.. I am happy with finish I get on this machine.

    Gantry mill for precise milling of aluminium-img_0872-jpg
    Gantry mill for precise milling of aluminium-img_0871-jpg
    Gantry mill for precise milling of aluminium-img_0873-jpg
    Gantry mill for precise milling of aluminium-img_0876-jpg



  2. #26
    Registered Azalin's Avatar
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    Default Re: Gantry mill for precise milling of aluminium

    Beautiful work. Clean job.

    Suat
    Proud father, C# developer, Model heli pilot, newbie free time machinist for hobby


  3. #27
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    Default Re: Gantry mill for precise milling of aluminium

    Thank you



  4. #28
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    Default Re: Gantry mill for precise milling of aluminium

    All the messy jobs finally finished..
    Gantry mill for precise milling of aluminium-img_0879-jpg



  5. #29
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    Default Re: Gantry mill for precise milling of aluminium

    Pneumatic cilinder holder is now in place..
    Gantry mill for precise milling of aluminium-img_0882-jpg
    Gantry mill for precise milling of aluminium-img_0884-jpg
    Gantry mill for precise milling of aluminium-img_0886-jpg
    Gantry mill for precise milling of aluminium-img_0888-jpg



  6. #30
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    Default Re: Gantry mill for precise milling of aluminium

    What is that cylinder for?

    Sent from my XT1585 using Tapatalk



  7. #31
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    Default Re: Gantry mill for precise milling of aluminium

    It will serve as counter balance for weight on Z axis. There will be additionall servo motor and additional NT30 milling head mounted on Z axis, which will drastically increase driven weight on Z axis to more than 35KG. Such weight would cause harm to Z ballscrew in no time. This is why most of VMCs use pneumatic or hydraulic counter balance cilinder on Z axis.



  8. #32
    Registered KH0UJ's Avatar
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    Default Re: Gantry mill for precise milling of aluminium

    Nothing more to say but WOW rigid from the looks of it, professionally built, add a watercooled brushless spindle motor then I think you can operate it 24/7, 365 days a year, a workforce of 3 shifts hehe, great build...



  9. #33
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    Default Re: Gantry mill for precise milling of aluminium

    Thanks. This 3.2KW ac motor can also work as long as you want, it doesnt get hot. I choosed air cooled due to less potencional problems. For larger tools there will be servo driven NT30 milling head.



  10. #34
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    Default Re: Gantry mill for precise milling of aluminium

    Update.. NT30 milling head is now in working state.. Milling with 50mm face mill went very good today, surface finish is also very good..
    Gantry mill for precise milling of aluminium-img_0930-jpg
    Gantry mill for precise milling of aluminium-img_0932-jpg

    Some of the cables are already taken care of..

    Gantry mill for precise milling of aluminium-img_0923-jpg



  11. #35
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    Default Re: Gantry mill for precise milling of aluminium

    I am curious, what components does your milling head consist of and where would one source these type components from in the US?



  12. #36
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    Default Re: Gantry mill for precise milling of aluminium

    Good question. Sadly I dont have answers. This milling head was removed from very big older milling machine. It was meant to be used as some kind of backup head, for some additional operations. It was never actually used, so It has zero operating hours. It is some German made head. I dont have any data about which bearings are in it. I made gearing for max 5000 Rpm, this is what I think it should handle without any problems. But it is a drawback that it isnt ATC. I dont know for US, but If you need milling head, I would suggest you to buy Chinese BT40 ATC milling head. They can be ordered with three different types of bearings - cheapest is for 6000rpm, then you can choose bearings for 8000 and 10 000rpm. Cheapest option is as low as 650USD. Best bearings will come for arround 950USD. One of my friends ordered it, and it is really well made. It has runout of less than 0.005mm. You just install pneumatic cilinder and you have ATC solution for bargain.



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Gantry mill for precise milling of aluminium
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