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Type: Posts; User: linux_fan

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    Re: Gantry mill for precise milling of aluminium

    Yes
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    Re: Gantry mill for precise milling of aluminium

    Thanks. I use three phase 380V. Single phase to three phase supply is theoretically possible to do, but you really don't want this, as you will run on pretty high currents on single phase 220 side,...
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    Re: Gantry mill for precise milling of aluminium

    You can see how everything works on video now:

    https://www.youtube.com/watch?v=LOaD_7eDXnM
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    Re: Gantry mill for precise milling of aluminium

    Thank you. Ive made some pictures for you. As you can see, small aluminium "brakes" are mounted on each side of alu profile. When you grab handle and push it down, you will release two pneumatic...
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    Re: Gantry mill for precise milling of aluminium

    Glad you like it. Since I got it in motion, I made a lot of parts for some other machine, and it works great. I have also bought BT30 ATC spindle for this machine, I will post here when I upgrade it....
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    Re: Gantry mill for precise milling of aluminium

    Thank you.
    Acceleration is 1500mm/s*s Can go almost as high as you want with those mitsu servo motors, but it hurts even watching gantry at some high acc rates:)
    About cylinder.. I made research as...
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    Re: Gantry mill for precise milling of aluminium

    Video of machining part for rotating ballnut for bigger machine:
    https://www.youtube.com/watch?v=dG3jCYBq26U&t=32s

    I also tried milling stainless steel 304, and it went fine. I will post video...
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    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...
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    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..
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    Some of the cables are already taken care...
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    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.
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    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...
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    Re: Gantry mill for precise milling of aluminium

    Pneumatic cilinder holder is now in place..
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    Re: Gantry mill for precise milling of aluminium

    All the messy jobs finally finished..
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    Re: Gantry mill for precise milling of aluminium

    Thank you
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    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.

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    Re: Gantry mill for precise milling of aluminium

    Progress.. Bottom surface of table is now finished - covered with epoxi granite. I made first cuts today with filled base and covered table, and surface finish looks great. It looks almost like...
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    Re: Gantry mill for precise milling of aluminium

    Progress.. Frame is filled with epoxi concrette.. Next step is filling bridge, and then also filling back side of table with approx 20mm of epoxi, to prevent vibration of table.
    My father was very...
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    Re: Gantry mill for precise milling of aluminium

    Thanks.. Small progress feom today... Plexi protection to prevent chips from falling on Y rails:
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    Re: Gantry mill for precise milling of aluminium

    Yes, guys at local CNC workshop did great job on table. For steel structure, I still have to fill it with epoxi concrettent to eliminate high freq vibrations. I will use EPUMENT :
    Machine Beds:
  20. Re: ScreenSet2017 (1 x mill, 1 x lathe, 1 x plasma)

    Looks very nice! I tried to download it, but it says I need some permissions.
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    Re: Gantry mill for precise milling of aluminium

    First cuts made! Havent made video yet, Ill make it when machine has cable carriers and all other items finished.
    When I compare part with parts of my gantry, which were milled on HAAS, mine...
  22. Re: "current point same as end point of arc" Please help!

    Can someone give instructions how to delete post? :D
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    Re: Gantry mill for precise milling of aluminium

    Thank you. Yes, rack cabinet works good, and I also like that it has all four sides removable, so you can easily access items inside of it. Cable carriers are not installed yet, ton of other thing...
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    Re: Gantry mill for precise milling of aluminium

    Thank you
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    Re: Gantry mill for precise milling of aluminium

    Thanks. I am not sure about steel, as steel needs very rigid machine, but aluminium should be no problem.
    Yesterday I made some progress with power cabinet..

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    Re: Gantry mill for precise milling of aluminium

    Finally, yesterday bed arrived. I already put table on bed, gantry is also on its position and few other items are already mounted. Screws from table and gantry are not tightened yet, as all needs to...
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    Re: Gantry mill for precise milling of aluminium

    Progres.. Table is finished.. Milled and grinded.

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    Re: Gantry mill for precise milling of aluminium

    I was expecting question about why not linuxcnc, as my nickname suggest Im more of a linux user :D I started using mach for my first build and I found cheap and reliable USB motion control card for...
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    Re: Gantry mill for precise milling of aluminium

    Thank you, lets wait and see how machine will behave. I have some high expectations, but you never know until you put all together and test it.
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    Gantry mill for precise milling of aluminium

    I will post some pictures and videos here about my new build. It is a moving gantry mill for milling aluminium. Why do it yourself and not just buy it? Well, there are very few machined with small...
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