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Type: Posts; User: sn4k3

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  1. Replies
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    51

    Re: Spindle selection

    If you are looking at china, take a look at this: https://www.aliexpress.com/item/32546333543.html
    You want the GDK series and not GDZ.
    ...
  2. Re: Chinese 2.2kw 24000rpm Spindle minimum RPM and aluminium mill

    Thank you for the info.
    Seller told me the spindle is constant torque, so i can assume it start at 6000RPMs, hit the max value at 9000, keep torque up to xRPMs and then start to goes down?
    7200RPMs...
  3. Re: Chinese 2.2kw 24000rpm Spindle minimum RPM and aluminium mill

    I'm with these bits: https://www.aliexpress.com/item/32995535888.html
    Don't like the fact they say Blue nano Coated, that says nothing about true coating for me but they work fine with this...
  4. Re: Chinese 2.2kw 24000rpm Spindle minimum RPM and aluminium mill

    Finally i could test the suggestions, it went fine, apart some notes...

    1) DOC = 0.4mm, 1200-1400mm/min, 22000 RPM for 4mm bit and 14200RPM for 8mm bit. Ramps = 500mm/m, Plunge = 100mm/m
    2) the...
  5. Re: Chinese 2.2kw 24000rpm Spindle minimum RPM and aluminium mill

    Or making a grid of steel under bed like that:

    https://i.imgur.com/iL4kOO7.jpg
  6. Re: Chinese 2.2kw 24000rpm Spindle minimum RPM and aluminium mill

    Motor stall under a high pressure threshold and prevent future damage if i keep going down, also as it flex a little there's no damage.
    By my eye it seen that spindle didn't flex, as that's the...
  7. Re: Chinese 2.2kw 24000rpm Spindle minimum RPM and aluminium mill

    Ok i found the weak parts on the machine. I gently crash spindle into alu block.

    The spindle looks like doesn't move or bent but...
    The steel sheet table from machine start to bend and do a...
  8. Re: Chinese 2.2kw 24000rpm Spindle minimum RPM and aluminium mill

    The main factor is due machine not on a solid base, it still on a wheel platform and it shakes as printer move axis, need to prepare my bench to get it fixed and stable. Due it weight i can't put it...
  9. Re: Chinese 2.2kw 24000rpm Spindle minimum RPM and aluminium mill

    You are lucky, here is hard to find any kind of bussiness selling that parts, even rustly or junk. It's easier to find plain bars but L shapes.... But may be my fault as i live in a village and not...
  10. Re: Chinese 2.2kw 24000rpm Spindle minimum RPM and aluminium mill

    Placement like that on the back: ?
    https://i.imgur.com/KMCSUf7.jpg

    Do you know any online store that sell that kind of angle stuff inside Europe?



    Got it
  11. Re: Chinese 2.2kw 24000rpm Spindle minimum RPM and aluminium mill

    You mean a L Shape 90 Degree bracket? something like that: https://ae01.alicdn.com/kf/HTB1g10qKAyWBuNjy0Fpq6yssXXak.jpg or https://www.aliexpress.com/item/32887666132.html



    You mean slightly...
  12. Re: Chinese 2.2kw 24000rpm Spindle minimum RPM and aluminium mill

    Will have a look at it tomorrow, thank you for pointing out.
    I have photos of the machine on thingyverse, but website is now bad and doesn't show all photos i posted....
  13. Re: Chinese 2.2kw 24000rpm Spindle minimum RPM and aluminium mill

    I mainly cut wood but like the hability to do some works on aluminium, simple stuff.

    For HSM i found this: https://makeitfrommetal.com/cutting-aluminum-with-a-cnc-router-the-hobbyists-guide/
    The...
  14. Chinese 2.2kw 24000rpm Spindle minimum RPM and aluminium mill

    Hello,

    I'm having a little trouble setting correct settings (I'm new in this) for mill aluminium 6063-T5 on a RTM-80-2.2 (https://www.aliexpress.com/item/32880152613.html) spindle. Calculator...
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