2nd Build

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  1. #1
    Member riche543's Avatar
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    Default 2nd Build

    Hi all
    Just wanted to share a few early pics of my 2nd cnc build. Just over 2 years ago I built a mdf / skate bearing cnc which has done me very well, but think its time to upgrade to something more solid, the main table is a 10mm thick steel plate which weighs about 80kgs size is 1200x700. So my cutting area will be slightly smaller than this. I will be making as many bits for the new build with my old machine as I'm able too cut upto 12mm aluminum so motor mounts , z axis design will be cut out on old cnc. I have 3 425oz nema motors for the axis, all ball screws are 25mm . Feel free to ask any questions but I will more likely be asking all you guys for your opinions . As with a lot of us I'm sure finding time for our hobby can be hard sometimes , but will do my best too keep this updated as I slowly progress
    Enjoy.

    Riche

    2nd Build-imageuploadedbytapatalk1327719037-874102-jpg
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    2nd Build-imageuploadedbytapatalk1327719186-541600-jpg
    2nd Build-imageuploadedbytapatalk1327719243-273480-jpg
    2nd Build-imageuploadedbytapatalk1327719207-043509-jpg2nd Build-imageuploadedbytapatalk1327719223-167981-jpg

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  2. #2
    Member riche543's Avatar
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    Very small update

    Got the Ball screw installed on the Y axis & Rails on the X axis,
    next will start the mounts for the X ball screw & cut some motor mounts.

    Attached Thumbnails Attached Thumbnails 2nd Build-img_0081-jpg   2nd Build-img_0082-jpg   2nd Build-img_0084-jpg  


  3. #3
    Registered port_huon's Avatar
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    Steel plate! I've never seen lifting handles on a CNC before - although it's not a bad idea, I have a 6040 machine and it's a pain to move.

    Do you get much flex from the unsupported rails?

    Regards
    Geoff


  4. #4
    Member riche543's Avatar
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    Hi tumatbound

    Yeah thought handles would be a good idea , so when I ask my neighbor too give us a lift he can't complain, lol. Once in position will remove handles. Fingers x there's not too much flex on the Y at the moment, the ball screw is 25mm so that shouldn't flex much. I am fitting a floating Z axis head for engraving so hopefully should not be too much of a problem (pic attached). I do feel like maybe I should have got supported rails now , but will see how it goes
    Cheers

    Riche. 2nd Build-imageuploadedbytapatalk1328558862-621330-jpg


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  5. #5
    Member riche543's Avatar
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    Another small update
    Shows nema motor mounts , would have liked too have made them out of a whole block but I can only cut max 12mm deep with my old cnc , but these seem too work ok. Also back plate of X/Z axis engraved face was just playing around, don't think it will be too visible once the rest is attached
    Cheers
    Riche

    2nd Build-imageuploadedbytapatalk1328759292-423431-jpg2nd Build-imageuploadedbytapatalk1328759318-021711-jpg2nd Build-imageuploadedbytapatalk1328759337-326087-jpg2nd Build-imageuploadedbytapatalk1328759366-155670-jpg2nd Build-imageuploadedbytapatalk1328759391-872160-jpg


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  6. #6
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    Nice work Riche.

    I too have built an MDF version CNC (JOES), but now half toying with the idea of constructing a second one using some alloy like yourself.

    I haven't actually tried cutting Al yet. I'd be interested in what cutter/rpm/feedrates you're using, as it looks like you're getting a reasonable result!

    Keep the posts up, we'll be following along mate...

    - Craig.
    my JOES2006 build thread - http://www.cnczone.com/forums/showthread.php?t=106995


  7. #7
    Member riche543's Avatar
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    Hi craig

    Thanks for the nice words,
    I do struggle a bit cutting ali as the mdf machine isn't really rigid enough, normally just cut plastic, I'm using 3 mm end mills for Ali & the speed/feed rates are far from normal machining . Some times it will cut at 240mm per min with 21000 rpm & 1.5mm passes other times that will snap the bit ( have gone though a few already) but I have found that 60 or 120 mm per min with same rpm & passes works better. Most days. It's the chatter that snaps the bits, one day you think you have found a nice speed , next it doesn't work , normally snaps on last pass , oh also using air too blow away chips.
    The guy I buy the end mills from in the US is properly wondering what I'm doing with all these 3 mm end mills lol.
    Cheers
    Riche.



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    Default Al cutting...

    Ok, sweet, thanks for those stats. I'll see how I go. My other hesitation is blowing those Al chips everywhere...! What a pain.

    Hey I also noticed it looks like you have a vacuum table yes...? How's it go? Very handy for holding down the thinner sheets of mdf/plastic I imagine.

    - Craig.
    my JOES2006 build thread - http://www.cnczone.com/forums/showthread.php?t=106995


  9. #9
    Member riche543's Avatar
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    Hi craig
    Good luck with it but I do go though lots of end mills with chatter, have found sometimes not cutting all the way though , leaving 0.5mm may help ?. I could not find the post that talks about blowing chips out, but I bought the pump that was recommended , it's a large pond air rater , wasn't expensive but works well, eBay sell them ,
    Cheers
    Riche


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  10. #10
    Member riche543's Avatar
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    Craig
    Just looked at my air pump , it's a hailea aco-009d , works great.
    Also I know might look like vacuum table on my old build , but it's just hundreds of holes that I thought I might have used for holding stuff down , but didn't work as expected, so there just for show, lol. Ended up using double sided tape.

    Riche.


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  11. #11
    Member riche543's Avatar
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    Only got a small amount done this week, but moving forward not backwards is good .
    So cut all X ball screw mounts & installed X motor , Tested once installed & running smooth

    Cheers
    Riche.

    Attached Thumbnails Attached Thumbnails 2nd Build-img_0105-jpg   2nd Build-img_0106-jpg   2nd Build-img_0107-jpg   2nd Build-img_0108-jpg  



  12. #12
    Member riche543's Avatar
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    Ok things are just about finished few add ons I would still like too add like superpid & x360 control.
    Very happy with results so far, Here's some more pics.
    2nd Build-imageuploadedbytapatalk1338073987-353947-jpg

    2nd Build-imageuploadedbytapatalk1338074018-986072-jpg

    Heres a close up of the hall sensors used for home/limit switches.

    2nd Build-imageuploadedbytapatalk1338074069-255585-jpg

    Dust shoe which also shows the 2 small air pipes which cools the tool while cutting
    2nd Build-imageuploadedbytapatalk1338074241-938648-jpg

    2nd Build-imageuploadedbytapatalk1338074273-852654-jpg

    2nd Build-imageuploadedbytapatalk1338074304-651026-jpg

    Pump for air cooling with heat sink & fans as the air leaving pump gets warm.
    2nd Build-imageuploadedbytapatalk1338074446-983754-jpg

    G540 driver , I used some scrap 12mm aluminum for heat sink with thermal paste. Glued on with epoxy.
    2nd Build-imageuploadedbytapatalk1338074653-034697-jpg

    2nd Build-imageuploadedbytapatalk1338074688-485548-jpg

    Built an enclosure for electrics with extra 12v & 5v on front & back if needed
    Also ins & outs on g540 are connected to terminal block on back for easier connection.
    2nd Build-imageuploadedbytapatalk1338074899-770891-jpg

    2nd Build-imageuploadedbytapatalk1338074952-486371-jpg

    2nd Build-imageuploadedbytapatalk1338075044-168122-jpg

    2nd Build-imageuploadedbytapatalk1338075119-651986-jpg

    Cheers

    Riche.


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    Attached Thumbnails Attached Thumbnails 2nd Build-imageuploadedbytapatalk1338073964-285217-jpg   2nd Build-imageuploadedbytapatalk1338074993-602972-jpg  


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    Default

    Quote Originally Posted by riche543 View Post
    Ok things are just about finished few add ons I would still like too add like superpid & x360 control.
    Very happy with results so far
    Built an enclosure for electrics with extra 12v & 5v on front & back if needed
    Also ins & outs on g540 are connected to terminal block on back for easier connection.
    2nd Build-imageuploadedbytapatalk1338074899-770891-jpg

    2nd Build-imageuploadedbytapatalk1338074952-486371-jpg

    2nd Build-imageuploadedbytapatalk1338075044-168122-jpg

    2nd Build-imageuploadedbytapatalk1338075119-651986-jpg
    I like your enclosure, it is very neat and tidy. Did you print out the diagram on the back?



  14. #14
    Member riche543's Avatar
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    Hey marti

    No I engraved on cnc then put green paint in it, but it didn't work as well as I wanted , think because I used Mdf for the box.
    Cheers




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    Quote Originally Posted by riche543 View Post
    Hey marti

    No I engraved on cnc then put green paint in it, but it didn't work as well as I wanted , think because I used Mdf for the box.
    Cheers
    thanks for the reply ... FYI, none of your pics are showing up



  16. #16
    Member riche543's Avatar
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    Yeah I haven't done anything , any idea why pics won't show anymore, would it be because post is old?




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    Quote Originally Posted by riche543 View Post
    Yeah I haven't done anything , any idea why pics won't show anymore, would it be because post is old?
    they were there the other day, so it can't be it's an old thread. If you do an alt + enter it will open



  18. #18
    Member riche543's Avatar
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    There back again for me now ? Strange.
    Funny looking back at the pics now , the machine is 12 months old now still looks pretty good but not as shiny a new like the pics. :-)




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