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Type: Posts; User: evalon

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  1. Re: Seek advice on dial gauge with low "measuring force" ...

    @2Cool585: Thanks for your feedback but as far as I can see it is a "passive" device - I need to be able to mount it on my CNC mill and then run it over the relevant surfaces - yet with a low...
  2. Seek advice on dial gauge with low "measuring force" ...

    Hi All,

    I have a question that hopefully is not too complicated - and which I hope one of you may help give a bit of advice about ...

    As it is I am currently working with quite small &...
  3. Re: Possible damage to spindle motor or VFD - help really appreciated!

    Hi Mactec54 ...

    & thanks for (maybe ;)) being able to calculate V/H values for the VFD/spindle combination I have ...

    As to the VFD I have attached a picture of the product label to this...
  4. Re: Possible damage to spindle motor or VFD - help really appreciated!

    @mactec54:



    Hi .. if you have a link/a copy of the additional settings I'd be very interested in seeing them. I think the spindle (normally) works very well but if it can be further optimized...
  5. Re: Possible damage to spindle motor or VFD - help really appreciated!

    @mactec54:

    Hi ... & thank you also for your feedback :) As to your question about the settings of my VFD I actually think that I am using the settings you have suggested here:
    ...
  6. Re: Possible damage to spindle motor or VFD - help really appreciated!

    Hi Andrew,

    & thanks for your feedback! As it is I tried to power up the motor again this morning and much to my surprise after 1-2 minutes these noisy sounds disappeared again ???? ... So at...
  7. Possible damage to spindle motor or VFD - help really appreciated!

    Hi all,

    Well, this certainly has not been the best of days :( ... I was slowly milling into a steel bolt/a cast iron base with my 2.2 kW spindle and 2.2 kW Huanyang VFD, and I seem to have...
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    Re: Which bits to use for PCB milling?

    Hi Craig,

    Well, you have already told me about this but interesting to get some more details ... Good luck with the project ;)

    Now I know that you are doing more things with your mill but...
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    Re: Seek advice on small vacuum pump.

    Hi Craig & Gerry,

    Thanks for your replies ... As it is it is not acceptable with the oil leak - and given the small sizes I mill on my CNC it could be a challenge to seal all air leaks. So I...
  10. Replies
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    Re: Seek advice on small vacuum pump.

    Hi all,

    Just read and thought about the discussion you have on whether or not a a tank makes a difference in terms of "saving vacuum". I think it may be related to the gas equation P*V=n*R*T ......
  11. Replies
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    Re: Seek advice on small vacuum pump.

    Hi all,

    & thanks so much for your feedbacks ;) ... Reading your replies makes me wonder if I then bought the wrong pump - and then again, no, I probably didn't because the budget is tight and...
  12. Replies
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    Seek advice on small vacuum pump.

    Hi all,

    I've recently bought a small ½ HP rotary vane type vacuum pump which by specification should be capable of 4.5 CFM of air flow and generating an ultimate vacuum of 0.3 Pascal.

    I use...
  13. Re: Efficient CNC machine exhaust/"dust collector" ...

    Hi all,

    I just want to post a brief follow-up to this thread ... As it is yesterday I had to mill a very small copper plate where I was unable to use the exhaust/dust collector I have made. This...
  14. Re: How to make a thin copper plate COMPLETELY flat/level?

    Thanks again mactec54 ...



    ... I sort of guessed this while looking at the video. Actually, quite fascinating that a relatively simple setup like this can produce such a result ...
    ...
  15. Re: How to make a thin copper plate COMPLETELY flat/level?

    Hi mactec54,

    Thanks a lot for your feedback! As it is it has made me check out some options this morning and it seems to be the best solution for my purposes. One question, though: In this video -...
  16. Re: How to make a thin copper plate COMPLETELY flat/level?

    Hmmm ... might this be a challenge ... ? Still hope some of you have experience with this ;)

    Jesper
  17. How to make a thin copper plate COMPLETELY flat/level?

    Hi All,

    I am having a bit of a challenge that I hope one of you here may be able to help with - I'd appreciate your assistance ;)

    As it is I need to make a copper plate with a thickness of 1.5...
  18. Replies
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    Re: Which bits to use for PCB milling?

    Hi Craig,

    Thanks!



    And, yes, you did mention this - but to my memory you pointed out that a solid bed would be "hugely superior" only after I had bought the cast iron bars (which I had...
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    Re: Which bits to use for PCB milling?

    Hi all,

    It has been a while ... hope you are well out there in the world :)

    As it is I have now completed my CNC build - except for a few things like painting the supporting table and...
  20. Re: Efficient CNC machine exhaust/"dust collector" ...

    Thanks routalot ;) ... It actually works very well ... I think one reason why is that when the spindle nut rotates it sort of "whirls up" the cutter shavings which then passes by the hole for the...
  21. Efficient CNC machine exhaust/"dust collector" ...

    Hi all,

    First - I don't know if this is the right sub-forum to place this thread - please feel welcome to move it if it is better suited to another sub-forum.

    ... As it is I recently completed...
  22. Re: Which water mixture to use for water cooled spindle ...

    Hi ... well, as I wrote I actually have bought some car radiator coolant but as I am most always after more environmentally friendly ways of doing things I took a look at the fluid you suggest....
  23. Which water mixture to use for water cooled spindle ...

    .... Please disregard - I've chosen to buy some car radiator coolant which will be thinned with demineralized water. Cheers, Jesper

    Hi All,

    I have just bought a 2.2 kW water cooled spindle for...
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    Re: Which bits to use for PCB milling?

    Hi again,

    It has been a while since I have been posting on this thread ... hope life is fine where you are ;)

    I thought I would upload a picture of what the machine now looks like (more...
  25. Re: Where to source good & reasonably price BK12/BF12 sets?

    Hi Zekyx,

    ... I can see that for some reason my reply to your info & link has not been added to the thread - so here again: Thanks for the info ... I have contacted with kampundkoetter and will...
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    Re: Which bits to use for PCB milling?

    Hey again Craig,

    & once more thanks for giving a detailed feedback ;)



    Hmmm ... the thing is that I probably could have made detailed calculations on torques, loads, stresses etc. if I had...
  27. Re: Is there a CAM software that can be "cheated" to do this?

    Hi all,

    & thanks so much for your feedbacks. Reading your replies I realize that I probably should have been more specific with the 3D shape I attached so that it more precisely resembled what I...
  28. Is there a CAM software that can be "cheated" to do this?

    Hi all,

    Partly due to being a newbie I am using Estlcam to do my CNC millings, and I would be very interested in finding a way to either:

    1.: “cheat” Estlcam so that I can make something like...
  29. Where to source good & reasonably price BK12/BF12 sets?

    Hi all,

    I am underways with building a new CNC machine and to this end am looking for some good yet reasonably priced BK12/BF12 sets (with BK12 angular contact bearings). Preferably from a vendor...
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    Re: Which bits to use for PCB milling?

    Hi again,

    Thanks again to you for commenting and suggesting. A couple of comments from up north:

    @Zorbit: I may consider using dowels for some of the holes on the z-axis - I guess they would...
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